US Pat. No. 10,250,222

ELECTRONIC DEVICE

TAIYO YUDEN CO., LTD., T...

11. An electronic device comprising:a first substrate including a first functional element located on an upper surface of the first substrate;
a second substrate that is flip-chip mounted on the upper surface of the first substrate through a bump, and includes a second functional element located on a lower surface of the second substrate; and
a sealing member that is located on the upper surface of the first substrate, surrounds the second substrate in plan view, is not located between the first substrate and the second substrate, seals the first functional element and the second functional element so that the first functional element and the second functional element are located across an air gap;
a terminal located on a lower surface of the first substrate; and
a wiring line connecting the terminal and the first functional element, and located on a side surface of the first substrate, wherein
the first substrate is a lithium tantalate substrate or a lithium niobate substrate, and
the first functional element includes an IDT located on an upper surface of the lithium tantalate substrate or the lithium niobate substrate.

US Pat. No. 10,250,221

ELASTIC WAVE DEVICE

MURATA MANUFACTURING CO.,...

1. An elastic wave device comprising:a piezoelectric substrate including first and second main surfaces which oppose each other and first and second side portions which oppose each other on the first main surface, a direction of a polarization axis of the piezoelectric substrate being inclined with respect to a direction normal to the first main surface;
first and second interdigital transducer electrodes that are disposed on the first main surface of the piezoelectric substrate and that each include first and second busbars which oppose each other, a plurality of first electrode fingers, and a plurality of second electrode fingers, one end of each of the plurality of first electrode fingers being connected to the first busbar, one end of each of the plurality of second electrode fingers being connected to the second busbar; and
a plurality of electrode lands that are disposed on the first main surface of the piezoelectric substrate and that are each electrically connected to a corresponding one of the first and second interdigital transducer electrodes; wherein
the first and second side portions of the piezoelectric substrate extend in a direction perpendicular or substantially perpendicular to the direction of the polarization axis and to the direction normal to the first main surface, and a length of the piezoelectric substrate along the direction of the polarization axis at the first side portion is shorter than a length of the piezoelectric substrate along the direction of the polarization axis at the second side portion;
the first interdigital transducer electrode is located at a position closer to the first side portion than the second interdigital transducer electrode in an extending direction of the plurality of first and second electrode fingers of the first interdigital transducer electrode; and
the plurality of electrode lands include a first electrode land and a second electrode land, the first electrode land being connected to the first busbar of the first interdigital transducer electrode without having the second interdigital transducer electrode interposed therebetween, the second electrode land being different from the first electrode land and being at a same potential as the first busbar of the first interdigital transducer electrode.

US Pat. No. 10,250,220

ELASTIC WAVE DEVICE, ELECTRONIC COMPONENT, AND METHOD FOR MANUFACTURING ELASTIC WAVE DEVICE

MURATA MANUFACTURING CO.,...

1. An elastic wave device comprising:a piezoelectric substrate;
an IDT electrode disposed on the piezoelectric substrate;
a pad disposed on the piezoelectric substrate;
wiring which is disposed on the piezoelectric substrate and which connects the IDT electrode to the pad;
a first dielectric layer disposed on the piezoelectric substrate so as to cover at least a portion of the IDT electrode and not cover the wiring and the pad;
an under bump metal disposed on the pad; and
a second dielectric layer disposed above the piezoelectric substrate so as to cover a portion of the pad, the wiring, and the first dielectric layer and not cover the under bump metal; wherein
at least a portion of the IDT electrode includes a first electrically conductive film;
at least a portion of the wiring includes a multilayer body including the first electrically conductive film and a second electrically conductive film stacked on the first electrically conductive film;
at least a portion of the pad includes the second electrically conductive film;
the second electrically conductive film is covered by the under bump metal and the second dielectric layer; and
the under bump metal is in contact with the second electrically conductive film, and covers a portion of the second dielectric layer.

US Pat. No. 10,250,219

ACOUSTIC WAVE DEVICE

TAIYO YUDEN CO., LTD., T...

1. An acoustic wave device comprising:a first substrate that includes a first acoustic wave filter located on an upper surface of the first substrate;
a second substrate that is flip-chip mounted on the upper surface of the first substrate through a bump, and includes a second acoustic wave filter on a lower surface of the second substrate, the lower surface of the second substrate facing the upper surface of the first substrate across an air gap; and
a shield electrode that is only supported by the upper surface of the first substrate among the upper surface of the first substrate and the lower surface of the second substrate, and is located between at least a part of the first acoustic wave filter and at least a part of the second acoustic wave filter through the air gap.

US Pat. No. 10,250,218

PIEZOELECTRIC THIN FILM RESONATOR AND FILTER

TAIYO YUDEN CO., LTD., T...

1. A piezoelectric thin film resonator comprising:a substrate;
a lower electrode and an upper electrode located on the substrate; and
a piezoelectric film, at least a part of the piezoelectric film being sandwiched between the upper electrode and the lower electrode, the piezoelectric film including a discontinuous portion in which the piezoelectric film discontinues in at least a part of a region surrounding a center region that includes a center of a resonance region where the upper electrode and the lower electrode face each other across the at least a part of the piezoelectric film,
wherein the discontinuous portion is located from a tip of the lower electrode and is not located in a region other than the tip of the lower electrode among the region surrounding the center region,
wherein an air gap is located under the lower electrode, and
wherein the discontinuous portion is located in a region in which an edge portion of the lower electrode substantially coincides with an edge portion of the air gap.

US Pat. No. 10,250,217

METHOD FOR IMPEDANCE MATCHING OF PLASMA PROCESSING APPARATUS

TOKYO ELECTRON LIMITED, ...

1. A method for impedance matching of a plasma processing apparatus,wherein the plasma processing apparatus comprises:
a chamber main body;
a first electrode and a second electrode which are arranged such that a space within the chamber main body is provided therebetween;
a first high frequency power supply configured to output a first high frequency power for plasma generation, the first high frequency power having a first basic frequency;
a second high frequency power supply configured to output a second high frequency power for ion attraction, the second high frequency power having a second basic frequency lower than the first basic frequency;
a first power feed line configured to electrically connect the first electrode or the second electrode to the first high frequency power supply;
a second power feed line configured to electrically connect the second electrode to the second high frequency power supply;
a first matching device configured to adjust an impedance at a load side of the first high frequency power supply; and
a second matching device configured to adjust an impedance at a load side of the second high frequency power supply,
wherein the first high frequency power supply is configured to selectively output, as the first high frequency power, one of:
a first continuous wave having the first basic frequency;
a first modulated wave generated by modulating a level of a continuous wave having the first basic frequency through a first modulation in which a level of a continuous wave is modulated such that a level in one period between two periods alternately repeated at a modulation frequency is set to be higher than a level in the other period between the two periods; and
a first double-modulated wave generated by modulating a level of a continuous wave having the first basic frequency through a second modulation in which a level of a continuous wave is modulated such that a level in a period during which one period between two periods alternately repeated at a first modulation frequency and one period between two periods alternately repeated at a second modulation frequency lower than the first modulation frequency are overlapped is set to be higher than levels in the other period between the two periods alternately repeated at the first modulation frequency and the other period between the two periods alternately repeated at the second modulation frequency,
wherein the second high frequency power supply is configured to selectively output, as the second high frequency power, one of:
a second continuous wave having the second basic frequency;
a second modulated wave generated by modulating a level of a continuous wave having the second basic frequency through the first modulation; and
a second double-modulated wave generated by modulating a level of a continuous wave having the second basic frequency through the second modulation,
wherein the method comprises:
performing an averaging processing in which a first average value of the impedance at the load side of the first high frequency power supply or a first average value group including an average value of voltages and an average value of currents on the first power feed line is calculated, and a second average value of the impedance at the load side of the second high frequency power supply or a second average value group including an average value of voltages and an average value of currents on the second power feed line is calculated;
calculating a first moving average value and a second moving average value, the first moving average value being a moving average value of the impedance at the load side of the first high frequency power supply and being calculated from a preset number of the first average values or a preset number of the first average value groups obtained by the performing of the averaging processing, and the second moving average value being a moving average value of the impedance at the load side of the second high frequency power supply and being calculated from a preset number of the second average values or a preset number of the second average value groups obtained by the performing of the averaging processing; and
adjusting a variable reactance element of the first matching device and a variable reactance element of the second matching device such that the first moving average value and the second moving average value respectively approximate to matching points,
wherein, in the performing of the averaging processing,
if a lowest modulation frequency used in generation of the first high frequency power and the second high frequency power is used only in the generation of the high frequency power output from one of the first high frequency power supply and the second high frequency power supply,
the first average value and the second average value are obtained by calculating an average value of the impedance at the load side of the one high frequency power supply at multiple time points in the one period between the two periods alternately repeated at the lowest modulation frequency and, also, by calculating an average value of the impedance at the load side of the other high frequency power supply at multiple time points in both of the two periods alternately repeated at the lowest modulation frequency, or
the first average value group and the second average value group are obtained by calculating an average value of the currents and an average value of the voltages on one power feed line used for transmission of the high frequency power from the one high frequency power supply between the first power feed line and the second power feed line at multiple time points in the one period between the two periods alternately repeated at the lowest modulation frequency and, also, by calculating an average value of the currents and an average value of the voltages on the other power feed line at multiple time points in both of the two periods alternately repeated at the lowest modulation frequency, and
if the lowest modulation frequency used in the generation of the first high frequency power and the second high frequency power is commonly used in the generation of both the first high frequency power and the second high frequency power,
the first average value is calculated from the impedance at the load side of the first high frequency power supply at multiple time points in the one period between the two periods within a modulation cycle of the first high frequency power defined by the lowest modulation frequency, and the second average value is calculated from the impedance at the load side of the second high frequency power supply at multiple time points in the one period between the two periods within a modulation cycle of the second high frequency power defined by the lowest modulation frequency, or
the first average value group is calculated from the voltage and the current on the first power feed line at multiple times points in the one period between the two periods within the modulation cycle of the first high frequency power defined by the lowest modulation frequency, and the second average value group is calculated from the voltage and the current on the second power feed line at multiple time points in the one period between the two periods within the modulation cycle of the second high frequency power defined by the lowest modulation frequency.

US Pat. No. 10,250,216

MULTISTAGE MATCHING NETWORK AND RELATED TECHNIQUES

The Regents of the Univer...

1. A multistage matching network comprising:a first stage providing an input stage of the matching network, the first stage comprising a pair of matching network input terminals, a pair of first stage output terminals, and at least two first stage reactive components disposed between the pair of matching network input terminals and the pair of first stage output terminals, the first stage comprising a near-resistive input impedance; and
a second stage providing an output stage of the matching network, the second stage comprising a pair of second stage input terminals coupled to the pair of first stage output terminals, a pair of matching network output terminals, and at least two second stage reactive components disposed between the pair of second stage input terminals and the pair of matching network output terminals, the second stage comprising a complex input impedance and a near-resistive load impedance.

US Pat. No. 10,250,215

ELECTRONIC CIRCUIT AND METHOD FOR MOUNTING ELECTRONIC CIRCUIT

NEC CORPORATION, Tokyo (...

1. An electronic circuit comprising:a capacitor and a three-terminal capacitor that are connected to a power supply terminal of a circuit component and a power supply, and are connected in parallel to each other between the power supply and ground; and
a resistor that is connected in series between the ground and a ground terminal of the three-terminal capacitor and the capacitor.

US Pat. No. 10,250,214

FILTER DEVICE, MULTIPLEXER, RADIO-FREQUENCY FRONT END CIRCUIT, AND COMMUNICATION DEVICE

MURATA MANUFACTURING CO.,...

1. A filter device comprising:a first series arm resonator and a second series arm resonator electrically connected in series between a first terminal and a second terminal, the first series arm resonator being located on a side closer to the first terminal, the second series arm resonator being located on a side closer to the second terminal;
a parallel arm resonator electrically connected between a ground and a series arm between the first series arm resonator and the second series arm resonator;
a first inductor electrically connected in parallel to the first series arm resonator and the second series arm resonator; and
a matching circuit electrically connected between the second series arm resonator and the second terminal or between the first series arm resonator and the first terminal; wherein
the first series arm resonator, the second series arm resonator, and the parallel arm resonator define a pass band of a bandpass filter;
the first series arm resonator, the second series arm resonator, and the first inductor define an LC resonant circuit;
respective anti-resonant frequencies of each of the first series arm resonator and the second series arm resonator and a resonant frequency of the parallel arm resonator are located in a pass band of the LC resonant circuit; and
a resonant frequency of the LC resonant circuit is lower than the resonant frequency of the parallel arm resonator.

US Pat. No. 10,250,213

INTEGRATED CALIBRATION CIRCUIT AND A METHOD FOR CALIBRATION OF A FILTER CIRCUIT

NXP USA, Inx., Austin, T...

1. A calibration circuit for calibrating a RC circuit of an integrated circuit the calibration circuit comprising:a filter arrangement comprising at least one tuneable filter configured to filter an input signal having a predetermined frequency wherein the tuneable filter comprises at least two tuneable resistor elements;
a saturation detector configured to detect saturation and non-saturation of the tuneable filter by comparing a comparison voltage with the signal voltage of the filtered input signal;
a calibration control logic configured to provide an incrementing counter signal and a decrementing counter signal;
wherein the calibration circuit is further configured to:
set the comparison voltage to a first threshold voltage;
provide iteratively an incrementing counter signal to the tuneable filter until saturation is detected;
after saturation is detected, reducing the comparison voltage to a predetermined second threshold voltage which is by a predetermined value lower than the first threshold voltage; and
provide then iteratively a decrementing counter signal to the tuneable filter until non-saturation is detected.

US Pat. No. 10,250,212

RADIO FREQUENCY DEVICE

Infineon Technologies AG,...

1. A radio frequency device, comprising:a radio frequency circuit including a terminal and configured to generate an output signal;
a network coupled to the terminal, the network comprising a series connection of at least two inductors; and
connections between the at least two inductors forming the series connection being exclusive between the at least two inductors,
wherein an equivalent resonance frequency of the series connection is equal to or greater than 1 GHz and is greater than a frequency of the output signal provided at an output of the radio frequency circuit.

US Pat. No. 10,250,211

BETA EQUALIZATION TO REDUCE NON-LINEAR DISTORTIONS OF BIPOLAR TRANSISTOR AMPLIFIERS

TEXAS INSTRUMENTS INCORPO...

1. An output stage circuit of an amplifier comprising:a first set of output transistors configured to couple to a load of the amplifier and produce a portion of an output signal Vout of the output stage circuit;
a second set of output transistors configured to couple the load of the amplifier and produce another portion of the output signal Vout;
an auxiliary buffer circuit directly connected to base nodes of a first subset of the first set of output transistors; and
a bias circuit coupled to base nodes of a second subset of the first set of output transistors, base nodes of the second set of output transistors, and the auxiliary buffer circuit,
wherein the base nodes of second subset and the base nodes of the second set of output transistors are coupled to one or more input terminals that provide an input signal from a previous stage circuit of the output stage circuit.

US Pat. No. 10,250,210

CIRCUIT AND METHOD FOR A HIGH COMMON MODE REJECTION AMPLIFIER BY USING A DIGITALLY CONTROLLED GAIN TRIM CIRCUIT

Dialog Semiconductor (UK)...

1. A differential amplifier with high common mode rejection, comprising:resistors in both paths of said differential amplifier wherein said differential amplifier comprises a pair of said resistors in each of its feedback paths; and
a varistor in a T-network between said both said feedback paths, to provide gain trimming; andwherein said varistor is connected between each pair of said resistors.

US Pat. No. 10,250,209

POWER AMPLIFICATION MODULE

MURATA MANUGACTURING CO.,...

1. A power amplification module that supports a plurality of communication systems, the power amplification module comprising:two power amplifiers, wherein, based on a control signal outputted from a control circuit, the control signal indicating a communication system selected from among the plurality of communication systems, either:
one of the two power amplifiers operates by itself, or
the two power amplifiers operate in parallel with each other; and
a phase correction circuit that, when the two power amplifiers operate in parallel, is connected between outputs of the two power amplifiers and is configured to remove a phase difference between output signals of the two power amplifiers.

US Pat. No. 10,250,208

AMPLIFIER CIRCUIT, CORRESPONDING SYSTEM AND DEVICE

STMicroelectronics S.r.l....

1. A circuit, including:a first input node and a second input node that are configured to differentially receive a sensing signal,
a first output node and a second output node,
a first amplifier stage having a first input coupled to the first input node, an output coupled to the first output node, and a second input,
a second amplifier stage having a first input coupled to the second input node, a second input, and an output coupled to the second output node, the first and second amplifiers being configured to produce a differential output signal between the first output node and the second output node and a common mode signal at both the first and second output nodes,
a voltage divider set between the first output node and the second output node, and having an intermediate tap node, and
a feedback stage coupled to the tap node of the voltage divider, the second input of the first amplifier stage, and the second input of the second amplifier stage, wherein the feedback stage is sensitive to the common mode signal at the output nodes.

US Pat. No. 10,250,207

METHOD AND SYSTEM FOR A FEEDBACK TRANSIMPEDANCE AMPLIFIER WITH SUB-40KHZ LOW-FREQUENCY CUTOFF

Luxtera, Inc., Carlsbad,...

1. A system for processing electrical signals, the system comprising:an amplifier circuit having coupling capacitors, a gain stage, and feedback paths comprising source followers and feedback resistors, wherein:
said feedback paths are coupled to first terminals of said coupling capacitors;
second terminals of said coupling capacitors are coupled to inputs of said gain stage;
said gain stage amplifies electrical signals received via said coupling capacitors; and
gate terminals of said source followers are coupled to output terminals of said gain stage.

US Pat. No. 10,250,206

VOLTAGE DETECTION CIRCUIT

DENSO CORPORATION, Kariy...

1. A voltage detection circuit of a differential configuration for sampling voltages of two input nodes and detecting a differential voltage between sampled voltages, the voltage detection circuit comprising:two detection capacitors paired in a differential configuration;
a first detection switch formed of a P-channel type MOS transistor for opening and closing a path between one of the two detection capacitors and one of the two input nodes;
a second detection switch formed of an N-channel type MOS transistor for opening and closing a path between an other of the two capacitors and an other of the two input nodes;
a third detection switch formed of at least one of a P-channel type MOS transistor and an N-channel type MOS transistor for opening and closing a path between the two detection capacitors;
a driving part for driving the first detection switch and the second detection switch complementarily to the third detection switch such that the first detection switch and the second detection switch are turned on and off when the third detection switch is turned off and on, respectively;
a minimum selector for selecting a lower one of the voltages of the two input nodes and applying a selected voltage as a substrate potential of the N-channel type MOS transistor; and
a maximum selector for selecting a higher one of the voltages of the two input nodes and applying a selected voltage as a substrate potential of the P-channel type MOS transistor.

US Pat. No. 10,250,205

POWER AMPLIFYING DEVICE

HITACHI KOKUSAI ELECTRIC ...

1. An outphasing power amplifying device including a full-bridge class-D power amplifier, comprising:a switching signal generating circuit configured to generate a switching pulse signal for switching the class-D power amplifier from two types of sinusoidal wave generated based on an amplitude and a phase of a modulated wave to be transmitted,
wherein the switching signal generating circuit includes:
a sin calculation unit and a cos calculation unit which are configured to convert phase information of the two types of sinusoidal wave into a quadrature format;
a DA converter configured to convert the quadrature-format phase information from each of the sin calculation unit and the cos calculation unit into an analogue signal;
a first filter configured to remove an aliasing component from the analogue signal inputted from the DA converter;
an analogue quadrature modulator configured to generate a sinusoidal wave from the analogue signals inputted from the first filter by using a local signal;
a second filter configured to allow a predetermined radio frequency and a component in the vicinity thereof in the sinusoidal wave inputted from the analogue quadrature modulator to pass therethrough; and
a comparator configured to convert the sinusoidal wave inputted from the second filter into a switching pulse signal by comparison with a reference voltage.

US Pat. No. 10,250,204

POWER AMPLIFICATION DEVICE AND TELEVISION SIGNAL TRANSMISSION SYSTEM

NEC CORPORATION, Tokyo (...

1. A power amplification device comprising:an amplifying unit provided with a plurality of groups of amplifier circuits that amplifies the power of a radio frequency (RF) signal, the plurality of groups of amplifier circuits each including a predetermined number of the amplifier circuits, the amplifying unit being not provided with a circuit that combines RF signals; and
a combining unit including first combiners that are provided in association with the groups, combine RF signals output from the amplifier circuits belonging to the corresponding group, and output the RF signal after combining, and a second combiner that combines the RF signals output from each first combiner and outputs the RF signal after combining,
wherein each first combiner is a combiner usable for an RF signal in a specific frequency band,
the amplifying unit is housed by a first housing and the combining unit is housed by a second housing which is separate from the first housing, and the amplifying unit is configured to be attachable to and detachable from the combining unit,
each amplifier circuit provided in the amplifying unit is a field effect transistor (FET),
the amplifying unit is configurable by one or more control voltages to perform amplification in classes AB, B and/or C, and
the amplification in classes AB, B, and/or C is compatible with a type of the first combiner, thereby permitting a same amplifying unit to be used with two different types of combining units.

US Pat. No. 10,250,203

POWER AMPLIFIER CIRCUIT

MURATA MANUFACTURING CO.,...

1. A power amplifier circuit comprising:an amplifier transistor configured to amplify an input signal and output an amplified signal, wherein the input signal is supplied to a base or a gate of the amplifier transistor and the amplified signal is output from a collector or a drain of the amplifier transistor;
a bias circuit configured to supply a bias current or a bias voltage to the base or the gate of the amplifier transistor, the bias circuit comprising:
a voltage generation circuit configured to generate a first direct-current (DC) voltage,
a first transistor, wherein the first DC voltage is supplied to a base or a gate of the first transistor,
a second transistor, wherein a second DC voltage is supplied to a base or a gate of the second transistor and an emitter or a source of the second transistor is connected to an emitter or a source of the first transistor,
a signal supply circuit disposed between the base or the gate of the amplifier transistor and the base or the gate of the second transistor, the signal supply circuit being configured to supply the input signal to the base or the gate of the second transistor, and
an impedance circuit disposed between the base or the gate of the first transistor and the base or the gate of the second transistor; anda first resistance element connected in series between the base or the gate of the amplifier transistor and the bias circuit, wherein the bias current or the bias voltage is supplied to the base or the gate of the amplifier transistor from the emitter or the source of the first transistor via the first resistance element.

US Pat. No. 10,250,202

POWER AMPLIFICATION SYSTEM WITH ADJUSTABLE COMMON BASE BIAS

Skyworks Solutions, Inc.,...

1. A power amplification system comprising:a cascode amplifier coupled to a radio-frequency input signal and coupled to a radio-frequency output; and
a biasing component including one or more sensors for detecting at least one of a temperature or a power condition of the power amplification system, the biasing component configured to apply one or more biasing signals to the cascode amplifier, the biasing component including a bias controller and one or more bias components, each respective bias component coupled to a respective bias transistor.

US Pat. No. 10,250,201

SYSTEMS AND METHODS FOR THERMAL MANAGEMENT FOR TELECOMMUNICATIONS ENCLOSURES USING HEAT PIPES

CommScope Technologies LL...

1. A system comprising:a power amplifier module including:
a power amplifier circuit;
a base plate, wherein the power amplifier circuit is mounted to the base plate; and
a plurality of heat pipes embedded within the base plate; and
a heat sink having a plurality of fins, wherein the power amplifier module is removably attached to the heat sink with one or more fastening systems, wherein a surface of the base plate interfaces with the heat sink, wherein the plurality of heat pipes are oriented to extend across the plurality of fins of the heat sink, wherein the plurality of heat pipes are oriented to run substantially perpendicular to the plurality of fins of the heat sink, wherein the plurality of heat pipes are approximately parallel to each other.

US Pat. No. 10,250,200

LOW POWER SPECTRALLY PURE OFFSET LOCAL OSCILLATOR SYSTEM

Avago Technologies Intern...

1. A transmitter back-end comprising:a frequency synthesizer configured to generate an offset local oscillator (LO) signal;
an LO offset circuit configured to adjust a frequency of the offset LO signal to provide a desired LO signal;
a back-end mixer configured to mix a baseband signal and the desired LO signal to provide an up-converted signal; and
a power amplifier (PA) configured to amplify the up-converted signal output by the back-end mixer;
wherein the LO offset circuit comprises:
an offset mixer configured to frequency shift the offset LO signal to provide a frequency shifted offset LO signal; and
a filter configured to filter an unwanted portion of the frequency shifted offset LO signal.

US Pat. No. 10,250,199

CASCODE AMPLIFIER BIAS CIRCUITS

pSemi Corporation, San D...

1. An amplifier circuit including:(a) a cascode amplifier having at least two serially connected field effect transistor (FET) stages, each FET stage having a gate, a drain, and a source, the bottom FET stage having an input configured to be coupled to an RF input signal to be amplified, and the top FET stage of the cascode amplifier having an output for providing an amplified RF input signal;
(b) a cascode reference circuit having at least two serially connected FET stages, each FET having a gate, a drain, and a source, the gates of the bottom two FET stages of the cascode reference circuit being coupled to the corresponding gates of the bottom two FET stages of the cascode amplifier, for biasing the cascode amplifier to output a final current approximately equal to a multiple of a mirror current in the cascode reference circuit;
(c) a closed loop bias control circuit, having at least one input coupled to the cascode reference circuit and an output coupled to the gates of the bottom FET stage of the cascode amplifier and of the cascode reference circuit, responsive to variations in voltage and/or current in the cascode reference circuit to output an adjustment gate bias voltage applied to the respective gates of the bottom FET stage of the cascode amplifier and of the cascode reference circuit that forces the mirror current in the cascode reference circuit to be approximately equal to a selected current value; and
(d) a respective decoupling network coupled between corresponding gates of each of the bottom two FET stages of the cascode amplifier, wherein at least one decoupling network includes a programmable resistance element for varying bias levels to the coupled gates.

US Pat. No. 10,250,198

METHODS OF ADJUSTING GAIN ERROR IN INSTRUMENTATION AMPLIFIERS

MICROCHIP TECHNOLOGY INCO...

8. A current-feedback instrumentation amplifier having gain error correction, comprising:an input transconductor comprising
a first differential pair of transistors,
a first tail current source, and
a first trimming circuit coupled between the first tail current source and the first differential pair of transistors, and to a bulk of the first differential pair of transistors;
wherein the first trimming circuit is configured to vary a first back-bias voltage on the bulk of the first differential pair of transistors;
a feedback transconductor comprising
a second differential pair of transistors,
a second tail current source, and
a second trimming circuit coupled between the second tail current source and the second differential pair of transistors, and to a bulk of the second differential pair of transistors;
wherein the second trimming circuit is configured to vary a second back-bias voltage on the bulk of the second differential pair of transistors; and
the first and/or second trimming circuits are adapted to be adjusted to reduce gain error between the input transconductor and feedback transconductor.

US Pat. No. 10,250,197

MULTIPLE-STAGE POWER AMPLIFIERS IMPLEMENTED WITH MULTIPLE SEMICONDUCTOR TECHNOLOGIES

NXP USA, Inc., Austin, T...

1. A multiple-stage amplifier comprising:a first die that includes a III-V semiconductor substrate, a first radio frequency (RF) signal input terminal, a first RF signal output terminal, and a first transistor, wherein the first transistor has a control terminal electrically coupled to the first RF signal input terminal, and a current-carrying terminal electrically coupled to the first RF signal output terminal;
a second die that includes a second type of semiconductor substrate, a second RF signal input terminal, a second RF signal output terminal, a first secondary circuit, and an amplification path between the second RF signal input terminal and the second RF signal output terminal, wherein the amplification path includes a second transistor with a control terminal and a current-carrying terminal, the control terminal of the second transistor is electrically coupled to the second RF signal input terminal, and the current-carrying terminal of the second transistor is electrically coupled to the second RF signal output terminal, and wherein the first secondary circuit is electrically coupled to the control terminal of the first transistor, and the first secondary circuit is selected from a final stage bias circuit and a final stage harmonic control circuit; and
a first connection electrically coupled between the second RF signal output terminal and the first RF signal input terminal.

US Pat. No. 10,250,196

AMPLIFIER DEVICES WITH BACK-OFF POWER OPTIMIZATION

NXP USA, Inc., Austin, T...

1. An amplifier device, comprising:a package substrate;
a first input lead coupled to the package substrate;
a second input lead coupled to the package substrate;
an output lead coupled to the package substrate;
a first phase shifter, the first phase shifter having an input and an output, the input of the first phase shifter coupled to the first input lead, and the first phase shifter configured to introduce a phase shift of ?1;
a first amplifier die coupled to the package substrate, the first amplifier die having an input and an output, the first amplifier die input coupled to the first phase shifter output;
a second amplifier die coupled to the package substrate, the second amplifier die having an input and an output, the second amplifier die input coupled to the second input lead; and
a first integrated passive device (IPD) coupled to the package substrate between the first and second amplifier dies and the output lead, wherein the first IPD includes
a second phase shifter, the second phase shifter having an input and an output, the second phase shifter input coupled to the first amplifier output, the second phase shifter configured to introduce a phase shift of ?2,
a third phase shifter, the third phase shifter having an input and an output, the third phase shifter input coupled to the second amplifier output, the third phase shifter configured to introduce a phase shift of ?3, and
a combiner node at which the second phase shifter output and the third phase shifter output are coupled together.

US Pat. No. 10,250,195

RECEIVER RECEIVING WIDEBAND RADIO FREQUENCY SIGNAL, WIRELESS COMMUNICATION DEVICE INCLUDING THE SAME, AND METHOD OF OPERATING THE WIRELESS COMMUNICATION DEVICE

SAMSUNG ELECTRONICS CO., ...

1. A wireless communication device comprising:an amplifier block configured to receive a radio frequency (RF) input signal transmitted using at least one carrier and amplify the RF input signal to generate at least one RF output signal, wherein the amplifier block comprises:
a first amplifier circuit configured to amplify the RF input signal to generate a first RF amplified signal including a first non-linearity factor and a second RF amplified signal including a second non-linearity factor different from the first non-linearity factor, and combine the first RF amplified signal and the second RF amplified signal to generate a third RF amplified signal; and
a second amplifier circuit configured to receive the third RF amplified signal and amplify the third RF amplified signal to generate an RF output signal corresponding to the at least one carrier,
wherein the third RF amplified signal comprises a third non-linearity factor, and the second amplifier circuit generates a fourth non-linearity factor that is different from the third non-linearity factor when amplifying the third RF amplified signal.

US Pat. No. 10,250,194

BROADBAND ENVELOPE TRACKING

Analog Devices Global, H...

10. An electronic circuit for providing power amplifier supply modulation, comprising:a tapped first delay line configured to store discrete-time samples corresponding to a signal to be amplified, after a specified delay, by a power amplifier circuit, the discrete-time samples defining a first bandwidth; and
a bandwidth-compressing envelope tracking circuit configured to:
receive the discrete-time samples from the tapped first delay line;
identify information representative of a peak magnitude within a specified temporal window defining a sequence of the discrete-time samples, the temporal window defined by the specified delay established by the tapped first delay line;
establish a value for a discrete-time sample of an envelope tracking signal using the information indicative of the peak magnitude; and
filter the envelope tracking signal to provide a bandwidth-compressed envelope tracking signal defining a second bandwidth that is narrower than the first bandwidth, the bandwidth-compressed envelope tracking signal provided at an output of the bandwidth-compressing envelope tracking circuit for use by an envelope tracking driver circuit configured to modulate a signal provided to a power supply node of the power amplifier, the bandwidth-compressed envelope tracking signal temporally aligned with the signal to be amplified by the power amplifier circuit;
wherein identifying the information indicative of the peak magnitude includes determining a magnitude squared value.

US Pat. No. 10,250,193

HIGH-FREQUENCY SEMICONDUCTOR AMPLIFIER CIRCUIT

Kabushiki Kaisha Toshiba,...

1. A multi-band semiconductor amplifier circuit, comprising:a bias generation circuit connected to a power supply terminal and reference voltage terminal and having a plurality of input control signal terminals at which a plurality of input control signals can be input;
a first input terminal at which a first high-frequency signal can be input;
a second input terminal at which a second high-frequency signal can be input;
a first output terminal at which a high-frequency signal can be output;
a first high-frequency amplifier circuit connected between the first input terminal and the first output terminal, the first high-frequency amplifier circuit comprising:
a first transistor having a gate connected to the first input terminal via a first capacitor;
a second transistor connected between a source of the first transistor and a reference potential terminal; and
a third transistor having a source connected to a drain of the first transistor and a drain connected to the first output terminal via a second capacitor;
a second high-frequency amplifier circuit connected between the second input terminal and the first output terminal, the second high-frequency amplifier circuit comprising:
a fourth transistor having a gate connected to the second input terminal via a third capacitor, a source of the fourth transistor being connected to the gate of the fourth transistor via a fourth capacitor;
a fifth transistor connected between the source of the fourth transistor and the reference potential terminal; and
a sixth transistor having a source connected to a drain of the fourth transistor and a drain connected to the first output terminal via the second capacitor, wherein
the bias generation circuit is configured to:
supply a first voltage at a first voltage terminal, the first voltage being between a power supply voltage supplied at the power supply terminal and a reference voltage supplied at the reference voltage terminal, the first voltage terminal being connected to the drain of the third transistor and the drain of the sixth transistor,
supply control signals to the gates of the second and fifth transistors according to the plurality of input control signals,
supply first bias voltages to the gates of the first and fourth transistors according to the plurality of input control signals, and
supply second bias voltages to the gates of third and sixth transistors according to the plurality of input control signals.

US Pat. No. 10,250,192

CLASS-E OUTPHASING POWER AMPLIFIER WITH EFFICIENCY AND OUTPUT POWER ENHANCEMENT CIRCUITS AND METHOD

TEXAS INSTRUMENTS INCORPO...

1. An outphasing amplifier comprising:(a) a first class-E power amplifier having an output at a node where a choke inductor is coupled with a first switching device, the output being coupled to a first conductor and an input coupled to a first RF drive signal, a first reactive circuit element coupled between the first conductor and a second conductor and a second reactive circuit element coupled between the second conductor and a third conductor; and
(b) a second class-E power amplifier having an output at a node where a choke inductor is coupled with a second switching device, the output being coupled to a fourth conductor and an input coupled to a second RF drive signal, a third reactive circuit element coupled between the fourth conductor and the second conductor, the third conductor being coupled to a first terminal of a load, outputs of the first and second class-E power amplifiers being combined by means of the first, second, and third reactive elements to produce an output current in the load.

US Pat. No. 10,250,191

HIGH-GAIN LOW NOISE FIGURE COMPLEMENTARY METAL OXIDE SEMICONDUCTOR AMPLIFIER WITH LOW CURRENT CONSUMPTION

Skyworks Solutions, Inc.,...

1. A radio frequency low noise amplifier circuit comprising:an amplifier with an input, an output, and a feedback node; and
a coupled inductor circuit including a primary inductor electrically connected to the output of the amplifier, and one or more interconnected secondary inductors, at least one of which is electrically connected to the feedback node of the amplifier and to the amplifier output, the primary inductor and each of the one or more secondary inductors being separately electromagnetically coupled to the primary inductor, with a transformation factor of a signal current to the output of the coupled inductor circuit being increased by the coupled inductor circuit.

US Pat. No. 10,250,190

MULTI-LEVEL DIGITAL ADAPTIVE PA BIAS FOR MICROWAVE RADIOS

ZTE CORPORATION, Shenzhe...

1. A power amplifier circuit, comprising:a power amplifier for amplifying a transmission signal, the transmission signal having a time-varying envelope;
an envelope detector that produces a time-varying signal indicative of an amplitude of the envelope of the transmission signal;
a plurality of comparators for comparing the time-varying signal to a plurality of distinct threshold voltages, each comparator having a first input receiving the time-varying signal and a second input receiving a respective threshold voltage of the plurality of distinct threshold voltages;
a plurality of switches, each switch having a first terminal and a second terminal, each switch being controlled by an output of a respective comparator of the plurality of comparators to form a conductive channel between the first terminal and the second terminal when the time-varying signal indicative of the amplitude of the envelope of the transmission signal exceeds the respective threshold voltage for the respective comparator;
a plurality of digital-to-analog converters (DACs) providing a plurality of bias voltages, wherein the first terminal of each switch of the plurality of switches is coupled to a respective DAC of the plurality of DACs;
a summing device having inputs coupled to the second terminals of each of the plurality of switches to produce an output bias voltage that is at least a sum of bias voltages from each of the second terminals of the plurality of switches, wherein the output bias voltage is applied to bias the power amplifier;
memory storing a plurality of sets of distinct threshold voltages, each set of the plurality of sets of distinct threshold voltages corresponding to a modulation type; and
one or more processors configured to:
detect a change in modulation type of the transmission signal; and
reprogram the plurality of distinct threshold voltages to a different set of distinct threshold voltages, of the plurality of sets of distinct threshold voltages, based on the change in the modulation type of the transmission signal.

US Pat. No. 10,250,189

SINGLE SIDEBAND MIXER AND METHOD THEREOF

REALTEK SEMICONDUCTOR COR...

1. A circuit comprising:a first Gilbert cell mixer of a first type configured to receive a first phase and a third phase of a first signal and a first phase and a third phase of a second signal and output a first current pair to a first node and a second node;
a first Gilbert cell mixer of a second type configured to receive the first phase and the third phase of the first signal and the first phase and the third phase of the second signal and output a second current pair to the first node and the second node;
a second Gilbert cell mixer of the first type configured to receive a second phase and a fourth phase of the first signal and a second phase and a fourth phase of the second signal and output a third current pair to the first node and the second node;
a second Gilbert cell mixer of the second type configured to receive the second phase and the fourth phase of the first signal and the second phase and the fourth phase of the second signal and output a fourth current pair to the first node and the second node;
a cross-coupling inverter pair configured to cross couple the first node and the second node; and
a load placed across the first node and the second node and configured to resonate at a frequency approximately equal to either a sum of a frequency of the first signal and a frequency of the second signal or a difference of the frequency of the first signal and the frequency of the second signal.

US Pat. No. 10,250,188

VOLTAGE CONTROLLED OSCILLATOR

NATIONAL CHI NAN UNIVERSI...

1. A voltage controlled oscillator, comprising:a resonance unit, including two first inductors and two first variable capacitors, each first inductor being electrically connected at one terminal thereof to a first voltage source, while being electrically connected at the other terminal thereof to one terminal of each first variable capacitor so as to form a first electrical connection point outputting a first oscillation frequency and a second electrical connection point outputting a second oscillation frequency, respectively, the other terminal of each first variable capacitor being electrically connected to a first control voltage;
a coupling unit, including a first transistor, a second transistor, a second inductor and a third inductor, a power supply input terminal of said first transistor and that of said second transistor, as well as one terminal of said second inductor and that of said third inductor being electrically connected to said first electrical connection point and said second electrical connection point, respectively, a gate terminal of said first transistor being electrically connected to the other terminal of said third inductor, a gate terminal of said second transistor being electrically connected to the other terminal of said second inductor; and
a source degeneration unit, including two adjustable inductors, two fourth inductors and two second variable capacitors, each adjustable inductor being electrically connected at one terminal thereof to a power supply output terminal of said first transistor and that of said second transistor, respectively, one terminal of each fourth inductor being electrically connected to one another to form a third electrical connection point, each second variable capacitor being electrically connected at one terminal thereof to the other terminal of said adjustable inductor and that of said fourth inductor, respectively, while each second variable capacitor being electrically connected at the other terminal thereof to a second control voltage, respectively;
wherein equivalent inductance of said adjustable inductor is adjusted, such that input impedance looking in the direction away from said resonance unit from the power supply input terminal is featured by negative capacitance.

US Pat. No. 10,250,187

SOLAR CELL MONITORING DEVICE

WOONZIE POWER TECHNIC CO....

1. A solar cell monitoring device comprising:an inverter;
connection boards which include multiple string circuits, respectively;
a terminal block which is provided at an input side of the inverter, and has multiple branch terminals which are connected to wires that are connected to the connection boards, respectively and supply direct current power to the inverter;
detection elements which detect currents flowing along the wires connected to the branch terminals; and
a measurement unit which measures the currents of the wires which are detected by the detection elements,
wherein each of the detection elements is formed in a quadrangular ring shape, such that one branch terminal is positioned by penetrating one detection element.

US Pat. No. 10,250,186

DETACHABLE SPLIT SOLAR POWER OPTIMIZATION JUNCTION BOX MODULE

Jiangsu Enmagic Energy Co...

1. A detachable split solar power optimization junction box module, comprising a plurality of split junction boxes (1A, 1B, 1C) with each of which having a base part and an upper cover part that connects to the base part in a detachable way to form an electrical connection, whereinthe base part has a base (10) with a plurality of string ports (11) provided thereon; and
the upper cover part has an upper cover (20) with a circuit board (21) provided therein, the circuit board (21) is provided with a power optimization module and a plurality of electrical connection pieces (22) electrically connected with the power optimization module, and each of the electrical connection pieces (22) matches one of the string ports (11) on the base (10) for corresponding insertion in a detachable way;
wherein the base (10) of the base part has a back part formed with a plurality of through holes (101);
a lower wall (102) is formed around the back part of the base (10) to accommodate the string ports (11) therein;
a plurality of buckles (103) are provided outside the lower wall (102) of the back part of the base (10);
the upper cover (20) of the upper cover part has a top part and an upper wall (202) is formed around the top part, with a space formed by the top part and the upper wall (202) being provided with the circuit board (21); and
a plurality of engaging blocks (203) are provided outside the upper wall (202) of the top part of the upper cover (20), with each of the engaging blocks (203) corresponding to one of the buckles (103) on the base (10);
wherein the upper cover (20) is provided with a heat sink (23) therein; the heat sink (23) is formed with a protruding part (231) and a plurality of claws (232); and
a plurality of notches (212) are formed at a periphery of the circuit board (21) for the claws (232) of the heat sink (23) to engage.

US Pat. No. 10,250,185

FUNCTIONALLY INTEGRATED DETACHABLE PHOTOVOLTAIC MODULE JUNCTION BOX

Jiangsu Enmagic Energy Co...

1. A functionally integrated detachable photovoltaic (PV) module junction box, comprising a base part and an upper cover part connected to the base part in a detachable way to establish an electrical connection; whereinthe base part includes a base provided with a plurality of string ports, a positive electrical port, and a negative electrical port; and
the upper cover part includes an upper cover provided with a circuit board therein, the circuit board is provided with an optimizing and monitoring circuit, a plurality of electrical connection pieces electrically connected to the optimizing and monitoring circuit, and each of the electrical connection pieces matches a respective one of the string ports, the positive electrical port, and the negative electrical port on the base for corresponding insertion.

US Pat. No. 10,250,184

ENHANCED SOLAR PANELS, LIQUID DELIVERY SYSTEMS AND ASSOCIATED PROCESSES FOR SOLAR ENERGY SYSTEMS

Accurate Solar Power, LLC...

1. A power generation system, comprising:a server;
a plurality of solar power panels, each comprising:
a plurality of DC power cells, and
a control module comprising input connections connected to the plurality of DC power cells, output connections, a signal processing circuit connected to the input connections and to the output connections, and a controller connected to the signal processing circuit, wherein the control module is configured to track one or more operating parameters for a corresponding solar power panel, and to send a data signal to the server, wherein the data signal corresponds to the one or more tracked operating parameters;
at least one inverter having input DC terminals, output AC terminals, and an inverter circuit connected to the input DC terminals and output AC terminals; and
a fluid delivery mechanism configured to distribute a liquid over an outer surface of at least a portion of the plurality of solar power panels;
wherein the server is configured to monitor an efficiency and a temperature of one or more of the plurality of solar power panels based upon the received data signals, and to send a respective control signal to the fluid delivery mechanism when each of:
the monitored efficiency is less than or equal to an efficiency setpoint, or
the monitored temperature exceeds a temperature setpoint; and
wherein the fluid delivery mechanism is controllably activated upon receipt of the control signal sent when the monitored efficiency is less than or equal to the efficiency setpoint or the monitored temperature exceeds the temperature setpoint.

US Pat. No. 10,250,183

MODULAR SOLAR POWER GENERATOR

1. A modular solar panel assembly comprising:a pair of parallel, spaced apart, longitudinally extending frame members each including a mounting flange extending toward the opposite frame member in a common transverse plane and a side flange extending at an angle to the mounting flange, the mounting flange including a mounting face;
a solar panel supported on the mounting faces and between the frame members;
a pair of planar, hooked flanges disposed at respective first longitudinal ends of the frame members and extending longitudinally in a plane that is substantially parallel to the side flange of the frame members, the hooked flanges each including a first top edge and a first bottom edge and defining a hook-shaped cutout that extends through a transverse thickness of the hooked flange with a first portion that extends from the first bottom edge toward the first top edge into the hooked flange and a second portion that turns to extend toward a longitudinal end of the hooked flange in a direction generally parallel to the frame members, the first bottom edge of the hooked flange facing in an opposite direction to the mounting face; and
a pair of planar, slotted flanges disposed at respective second longitudinal ends of the frame members and extending longitudinally from the second longitudinal ends in a direction opposite that of the hooked flanges and in the same plane as the hooked flange at the opposite end of the respective frame member, each of the slotted flanges including a slot that extends into the slotted flange from a second bottom edge of the slotted flange toward a second top edge, the second bottom edge being directed in the same direction as the first bottom edge of the hooked flanges.

US Pat. No. 10,250,182

MICRO-CONCENTRATOR SOLAR ARRAY USING MICRO-ELECTROMECHANICAL SYSTEMS (MEMS) BASED REFLECTORS

The Boeing Company, Chic...

1. An apparatus comprising:a coverglass having a first side facing an outside of the apparatus and a second side facing an inside of the apparatus, wherein the first and second sides are flat;
a plurality of solar cells mounted in a first array to the coverglass on the second side;
a substrate disposed opposite the second side of the coverglass;
for each of the plurality of solar cells, a corresponding group of reflectors arranged on the substrate around a corresponding central point, wherein each group of reflectors comprises a plurality of reflectors arranged in a radially outward direction with respect to the central point, wherein the corresponding central point of any given group of reflectors is positioned to oppose a given corresponding solar cell of the first array, wherein together all groups of reflectors form a second array that corresponds to the first array; and
a control module in communication with the plurality of solar cells and all groups of reflectors, wherein the control module includes control logic for:
monitoring an electrical output generated by all of the plurality of solar cells with each reflector in each group of reflectors in the groups of reflectors positioned to reflect a beam of light directed from a current source position to the solar cell of the plurality of solar cells corresponding to the reflector,
determining whether the electrical output generated by all of the plurality of solar cells with each reflector in each group of reflectors in the groups of reflectors positioned to reflect a beam of light directed from the current source position to the solar cell of the plurality of solar cells corresponding to the reflector is below a selected threshold,
in response to a determination that the electrical output generated by all of the plurality of solar cells with each reflector in each group of reflectors in the groups of reflectors positioned to reflect a beam of light directed from the current source position to the solar cell of the plurality of solar cells corresponding to the reflector is below the selected threshold, identifying a plurality of selected source positions surrounding the current source position,
positioning all of the plurality of reflectors in the groups of reflectors for each of the plurality of selected source positions surrounding the current source position such that for each of the plurality of selected source positions surrounding the current source position each reflector in each group of reflectors in the groups of reflectors is positioned to reflect a beam of light directed from the selected source position to the solar cell of the plurality of solar cells corresponding to the reflector,
measuring the electrical output generated by all of the plurality of solar cells with the plurality of reflectors in the groups of reflectors positioned for each of the plurality of selected source positions surrounding the current source position,
selecting the one of the plurality of selected source positions surrounding the current source position corresponding to the positions of the plurality of reflectors in the groups of reflectors for which the electrical output generated by all of the plurality of solar cells is the highest electrical output as a new current source position, and
positioning all of the plurality of reflectors in the groups of reflectors for the new current source position such that each reflector in each group of reflectors in the groups of reflectors is positioned to reflect a beam of light directed from the new current source position to the solar cell of the plurality of solar cells corresponding to the reflector.

US Pat. No. 10,250,181

SOLAR PANEL SUPPORT DEVICES AND RELATED SOLAR PANEL SUPPORT SYSTEMS

RBI Solar, Inc., Cincinn...

1. A support device for supporting a solar panel above a base surface, comprising:a body including an upper mounting surface, a lower base surface, and integral ballast, the upper mounting surface being sloped relative to the lower base surface;
at least one mounting element comprising a tab projecting upwardly from the upper mounting surface and being configured to support a solar panel,
the at least one mounting element being permanently coupled to the body; and
a bracket coupled to the at least one mounting element and being configured to support the solar panel, the bracket being linearly movable relative to the at least one mounting element for selectively adjusting a height of the solar panel relative to the upper mounting surface.

US Pat. No. 10,250,180

HOLDING DEVICE FOR A SOLAR PANEL ON A PARAPET OF A BALCONY

1. A solar module (1,2) mounted on a railing (3) of a balcony comprising:at least one solar element (51) for converting incident solar radiation into usable energy;
a frame (52) for stabilizing the solar element (51); and
a mounting bracket for supporting the at least one solar cell element (51) comprising:
a tethering device (4) for tethering the at least one solar cell element to be supported (2) and integrally formed with the frame (52), wherein the tethering device (4) comprises at least one support (5,6,7,8) for abutment to a railing (3); and
two cross bars (9,10) for bridging a railing width (11), wherein the two cross bars (9,10) are connected to the tethering device (4) and wherein the two cross bars comprise a flange (12,13) each for abutment to a railing (3), wherein the respective flange (12,13) and the at least one support (5,6,7,8) press each other against the railing (3) in opposed directions by means of a movement (14) of the respective flanges (12,13) towards the tethering device (4), wherein the two cross bars are pivotable about a corresponding axis (16) parallel to the railing plane (15) of a railing (3), wherein the axes for each cross bar are spaced apart laterally.

US Pat. No. 10,250,179

POWER CONVERTER AND ELECTRIC POWER STEERING APPARATUS USING SAME

DENSO CORPORATION, Kariy...

1. A power converter for converting an electric power for powering a motor, the power converter comprising:a first winding wire group with a first set of three-phase winding wires;
a second winding wire group with a second set of three-phase winding wires;
a first inverter corresponding to the first winding wire group, the first inverter having a first set of switching elements in connection with the first set of three-phase winding wires;
a second inverter corresponding to the second winding wire group, the second inverter having a second set of switching elements in connection with the second set of three-phase winding wires;
a controller configured to control the electric power supplied to each of the three-phase winding wires in the first set and the second set by controlling an ON-OFF operation of the first set and second set of switching elements based on a Pulse-Width Modulation (PWM);
a first current detector disposed on a low potential side of the first inverter;
a second current detector disposed on a high potential side of the second inverter; and
a rotation angle sensor configured to detect an electric angle of the motor, wherein
the controller is further configured to calculate a rotation speed of the motor based on the electric angle and to determine whether a third-order harmonic frequency is less than a human audible lower limit frequency based on the rotation speed, and wherein
when the third-order harmonic frequency is less than the human audible lower limit frequency, the controller sets a two-phase modulation period for performing a two-phase modulation control, and
when the first inverter performs the two-phase modulation control, the controller sets one phase of the first set of switching elements on the low potential side of the first inverter to an ON-fix state, and
when the second inverter performs the two-phase modulation control, the controller sets one phase of the second set of switching elements on the high potential side of the second inverter to an ON-fix state, and
when the third-order harmonic frequency is equal to or greater than the lower limit frequency threshold, the controller performs a three-phase modulation control.

US Pat. No. 10,250,178

CORDLESS POWER TOOL SYSTEM

1. A combination comprising:a multi-voltage battery pack for use with tools of different operating voltages, the multi-voltage battery pack comprising:
a housing,
a first string of battery cells arranged in electrical series and disposed inside the housing, the first string having a first positive voltage terminal and a first negative voltage terminal,
a second string of battery cells arranged in electrical series and disposed inside the housing, the second string having a second positive voltage terminal and a second negative voltage terminal, and
a power tool interface shaped and configured to interchangeably (1) mechanically and electrically couple with a first battery pack interface of a first power tool that is configured to operate at a first operating voltage, and (2) mechanically and electrically couple with a second battery pack interface of a second power tool that is configured to operate at a second operating voltage; and
a battery pack charger configured to charge the multi-voltage battery pack,
wherein the second operating voltage is higher than the first operating voltage,
wherein, when the power tool interface is coupled with the first battery pack interface, the first and second positive voltage terminals are electrically connected to each other and the first and second negative voltage terminals are electrically connected to each other such that the first and second strings are electrically connected to each other in a parallel configuration so as to provide the first operating voltage to the first power tool,
wherein, when the power tool interface is coupled with the second battery pack interface, the first positive voltage terminal is electrically connected to the second negative voltage terminal such that the first and second strings are electrically connected to each other in a series configuration so as to provide the second operating voltage to the second power tool,
wherein the power tool interface is further configured such that the first battery pack interface to which the power tool interface can be coupled is shaped and configured to mate with a second power tool interface of a single voltage battery pack, the single voltage battery pack being configured to provide the first operating voltage, but not the second operating voltage,
wherein the power tool interface and the second power tool interface are interchangeably coupleable to the first battery pack interface so that the first power tool is operable with either of the multi-voltage battery pack or the single voltage battery pack, and
wherein the battery pack charger is configured to charge the single voltage battery pack.

US Pat. No. 10,250,177

FLOATING GROUND ASSEMBLY FOR ELECTRIC MOTOR CONTROL ASSEMBLY

Regal Beloit America, Inc...

1. A ground assembly for a motor management module, said ground assembly comprising:a first layer comprising:
a power ground;
a communication ground spaced from said power ground;
a conductive path electrically coupled between said power ground and said communication ground, wherein said conductive path defines a parasitic inductance; and
an electrically insulating layer, wherein at least a portion of said insulating layer is positioned between said power ground and said communication ground;
a second layer comprising a first substrate, wherein said first substrate is spaced from said power ground and defines a first parasitic capacitance therebetween, wherein said first substrate is spaced from said communication ground and defines a second parasitic capacitance therebetween; and
a bypass capacitor electrically coupled between said power ground and said first substrate.

US Pat. No. 10,250,176

CONTROL OF LONG-STATOR LINEAR MOTOR COILS OF LONG-STATOR LINEAR MOTOR STATOR

1. A method for controlling a plurality of n coils arranged to form at least a part of a long-stator linear motor (LLM) stator, where n is number that is greater than 1, comprising:n first input terminals of n half bridges to which a first operating potential is applied;
n second input terminals of then half bridges to which a second operating potential is applied,
wherein, each half bridge comprises:
a first switch is connected between a center point of a respective half bridge and a respective one of the n first input terminals; and
a second switch is connected between the center point of the respective half bridge and a respective one of the n second input terminals,
wherein center point of the n half bridges is, in each case, connected to n first terminals of the n coils, and
wherein the second terminals of the n coils are connected in a control point that is regulated to a predetermined potential.

US Pat. No. 10,250,175

FIELD WINDING SYNCHRONOUS MACHINE DRIVE SYSTEM

DENSO CORPORATION, Kariy...

1. A field winding synchronous machine drive system comprising:a field winding synchronous machine including a stator and a rotor, the stator including a stator core and N m-phase stator coils wound on the stator core to create a rotating magnetic field, where N is an integer greater than or equal to 2 and m is an integer greater than or equal to 3, the rotor including a rotor core and at least one main field winding wound on the rotor core to create field magnetic flux; and
a drive apparatus configured to drive the field winding synchronous machine, the drive apparatus including N inverters each of which supplies m-phase alternating current to a corresponding one of the N m-phase stator coils,
wherein
each of the inverters supplies the corresponding m-phase stator coil with the m-phase alternating current which includes a fundamental-wave current and a time-harmonic current superimposed on the fundamental-wave current, the time-harmonic current having a shorter period than the fundamental-wave current, and
the time-harmonic currents included in the respective m-phase alternating currents cause field current to flow in the at least one main field winding of the rotor, thereby creating the field magnetic flux.

US Pat. No. 10,250,174

MOTOR DRIVING DEVICE

DENSO CORPORATION, Kariy...

1. A motor driving device for a motor that includes: a stator having a plurality of stator coils corresponding to a plurality of phases respectively; and a rotor having a permanent magnet and rotationally driven by an interaction between the stator coil, to which an AC voltage is input, and the permanent magnet, the motor driving device comprising:an inverter circuit that includes a plurality of units corresponding to plurality of phases respectively, each unit having a pair of a switching element and a reflux diode connected in anti-parallel to the switching element; and
a control device that controls the inverter circuit to switch each switching element, to convert a DC voltage into the AC voltage, and to output the AC voltage to the stator coil, wherein:
the control device includes:
a field weakening control unit that performs a field weakening control for adjusting an output of the AC voltage to the stator coil to control a magnetic field generated by the stator coil to weaken a field magnetic flux of the rotor; and
a regenerative current control unit that switches an anti-regenerative side switching element being a switching element of one of the plurality of units in which no regenerative current flows into the reflux diode from the stator coil, and flows a regenerative current through the anti-regenerative side switching element when the output of the AC voltage to the stator coil is stopped while the field weakening control unit performs the field weakening control.

US Pat. No. 10,250,173

POWER GENERATOR SYSTEM AND GENERATOR EXCITER DEVICE THEREOF

KUTAI ELECTRONICS INDUSTR...

1. A power generator system comprising:a field winding having a first input terminal and a second input terminal, receiving a total excitation voltage at said first and second input terminals thereof, and generating a magnetic field based on the total excitation voltage;
an alternator generating an output voltage based on the magnetic field generated by said field winding;
a voltage regulator having a first output terminal and a second output terminal, coupled to said alternator for sensing the output voltage therefrom, and generating a primary excitation voltage at said first and second output terminals thereof based on the sensed output voltage; and
a generator exciter device having a first output terminal and a second output terminal, and generating an auxiliary excitation voltage at said first and second output terminals thereof;
wherein said first and second output terminals of said generator exciter device are coupled respectively to said first input terminal of said field winding and said first output terminal of said voltage regulator, and said second output terminal of said voltage regulator is coupled to said second input terminal of said field winding, so that the auxiliary excitation voltage and the primary excitation voltage are summed into the total excitation voltage;
wherein the total excitation voltage is greater than or equal to the primary excitation voltage in magnitude;
wherein said generator exciter device includes:
an inverter used to receive a DC (direct current) input voltage, and converting the DC input voltage to generate an AC (alternate current) inverted voltage,
a rectifier coupled to said inverter for receiving the AC inverted voltage therefrom, coupled further to said first and second output terminals of said generator exciter device, and rectifying the AC inverted voltage to generate the auxiliary excitation voltage at said first and second output terminals of said generator exciter device, and
a controller coupled to said alternator and said inverter for sensing the output voltage and the AC inverted voltage respectively therefrom, and controlling said inverter based on the sensed output voltage and the sensed AC inverted voltage such that the AC inverted voltage is associated with the output voltage;
wherein said controller obtains a ratio of a drop of an amplitude of the sensed output voltage to the amplitude of the sensed output voltage immediately before the drop, and determines whether the ratio is less than a threshold value; and
wherein, when determining that the ratio is greater than or equal to the threshold value, said controller calculates a target voltage value based on the ratio, and controls said inverter based on the sensed AC inverted voltage and the target voltage value in such a way that an amplitude of the AC inverted voltage is stabilized at the target voltage value.

US Pat. No. 10,250,172

APPARATUS FOR DETECTING THE ROTOR POSITION OF AN ELECTRIC MOTOR AND RELATED METHOD

STMicroelectronics S.r.l....

1. An apparatus for detecting a position of a rotor of an electric motor having a plurality of windings, the apparatus comprising:a circuit having at least two half-bridges coupled between a supply node and a reference node, the at least two half-bridges having central points coupled with two windings of the plurality of windings;
the circuit configured to control a current charge operation of a current passing through the two windings via a first current path;
the circuit configured to drive the at least two half-bridges in a pulse width modulation mode during the current charge operation;
a measurement circuit configured to measure a time period between a peak value of the current and a second value of the current during a current discharge operation, wherein the current passes through the two windings via a second current path during the discharge operation; and
a rotor position detector configured to detect a rotor position based on the measured time period.

US Pat. No. 10,250,171

ELECTRIC MOTOR CONTROL APPARATUS AND ELECTRIC MOTOR CONTROL METHOD

TOYOTA JIDOSHA KABUSHIKI ...

1. An electric motor control apparatus that controls an electric motor system including a direct-current power supply, a power converter and a three-phase alternating-current motor, the power converter including switching elements that convert a direct-current power to alternating-current powers, the direct-current power being supplied from the direct-current power supply, the three-phase alternating current motor being driven by using the alternating-current powers that are output from the power converter, the electric motor control apparatus comprising:an ECU configured to determine a current drive mode; and
a generating device configured to generate, in each phase of the three-phase alternating-current motor, a modulation signal by adding a triple harmonic signal to a phase voltage command signal that defines an operation of the three-phase alternating-current motor, an amplitude of the phase voltage command signal being smaller than an amplitude of a carrier signal, and an amplitude of the modulation signal being larger than the amplitude of the carrier signal,
wherein the ECU is configured to control an operation of the power converter by controlling the switching elements on the basis of a magnitude relation between each of the modulation signals and the carrier signal having a predetermined frequency,
wherein a phase of the triple harmonic signal is shifted based on the drive mode, and
wherein the triple harmonic signal includes a signal component of which (i) the absolute value of the signal level is larger than zero and (ii) the polarity of the signal level is the same as the polarity of at least one phase voltage command signal, at timing at which the absolute value of the signal level of the at least one phase voltage command signal is maximum.

US Pat. No. 10,250,170

MOTOR CONTROL DEVICE

Mitsubishi Electric Corpo...

1. A motor control device including a first drive device to drive a first motor, and a second drive device to drive a second motor, the motor control device comprising:a correction-amount calculator to use a detection result of a position of the first motor, and a detection result of a position of the second motor to calculate a correction amount for correcting a command that is to be used for controlling the first motor;
a corrector to use the correction amount to correct the command that is to be used for controlling the first motor; and
a position controller to execute position control on the second motor by using the detection result of the position of the first motor as a position command.

US Pat. No. 10,250,169

ROBOT SYSTEM

DENSO WAVE INCORPORATED, ...

1. A robot system comprising:a motor including stator windings for three phases and driving each rotation axis of a robot;
an inverter including series-connection bodies of a high-side switch and a low-side switch for the three phases, and alternately turning on the high-side switch and the low-side switch to apply an alternating-current voltage to the corresponding stator winding using an external power source as a power supply source, a connection point of the high-side switch and the low-side switch for each of the phases being connected with the corresponding stator winding, one of the high-side switch and the low-side switch for each of the phases working as a brake switch; and
a first control portion and a second control portion performing a driving control of the brake switches, each of the first control portion and the second control portion having a function of monitoring the robot system, and each of the first control portion and the second control portion turning on the brake switches for at least two phases when detecting that an abnormality occurs in the robot system, wherein
each of the first control portion and the second control portion has a function of monitoring an abnormality in each other,
the first control portion turns on the brake switches for at least two phases when detecting that an abnormality occurs in the second control portion, and
the second control portion turns on the brake switches for at least two phases when detecting that an abnormality occurs in the first control portion.

US Pat. No. 10,250,168

PUMP JACK CONTROLLER AND METHOD FOR USING SAME FOR ELECTRICITY GENERATION

Lifting Solutions Inc., ...

1. A pump jack controller for converting waste energy created during the operation of a pump jack into electrical energy that is then supplied back to an electric power grid, the pump jack operatively coupled to and operated by an electric induction motor, the pump jack comprising a donkeyhead and a counterweight operatively coupled thereto wherein each of the donkeyhead and the counterweight rise and fall when the pump jack is operated by the electric induction motor, the pump jack controller comprising:a) a motor drive unit (“MDU”) comprising a direct current (“DC”) input and an alternating current (“AC”) output, the AC output operatively coupled to the electric induction motor, the MDU configured to invert DC power supplied to the DC input into AC power that is outputted from the AC output to power the motor, the MDU further configured to rectify AC electric power generated by the motor into generated DC power that is outputted from the DC input when either of the donkeyhead and the counterweight is falling thereby causing the motor to be in a negative torque operating condition;
b) a DC bus operatively coupled to the DC input of the MDU; and
c) a generator drive unit (“GDU”) comprising a DC output and an AC input, the DC output operatively coupled to the DC bus, the GDU configured to rectify a source of supplied AC electric power from the power grid coupled to the AC input into DC power that is outputted onto the DC bus, the GDU configured to regulate and maintain a preset DC bus value on the DC bus, the GDU further configured to invert the generated DC power into generated AC power that is outputted from the AC input back to the power grid when the generated DC power supplied to the DC bus by the MDU exceeds the preset DC bus value.

US Pat. No. 10,250,167

DEVICE AND METHOD FOR STARTING A MOTOR FOR ALTERNATING CURRENT

Weigel AG, Wattwill (CH)...

1. A device for starting an alternating current motor using an alternating current,wherein the alternating current motor has at least one feed line for an alternating current electrical power supply, and said device comprising:
an actuator element for limiting a current in the feed line to the alternating current motor,
a switching element for bypassing the actuator element,
a current-monitoring element for monitoring the current in the feed line to the alternating current ‘motor;
a controller for controlling the switching element,the actuator element comprises at least a first start-up element and a second start-up element, which comprises a NTC thermistor, as well as a switch-over element for switching over between the at least first and second start-up elements, and each of the first and the second start-up elements ensuring a continuous current rise in the lead line to the alternating current motor without having any high-frequency interference peaks, and by switching over between the at least first and second start-up elements, the first start-up element is removed from the feed line to the alternating current motor and replaced by the second start-up element, such that the current to the alternating current motor is, in turn, reduced and subsequently rises continuously.

US Pat. No. 10,250,166

TRANSFORMER AND PRIMING CIRCUIT THEREFOR

Auckland UniServices Limi...

1. A self priming circuit for an electrostatic generator, the circuit including a plurality of units for controlling a priming charge on the electrostatic generator to maintain or increase or decrease the priming charge, each of said plurality of units comprising:a plurality of capacitors; and
a plurality of diodes,
wherein:
the plurality of diodes are arranged such that at least two of the plurality of capacitors are effectively in parallel with each other when current is configured to flow in a first direction and effectively in series when current flows in a second direction, whereby the circuit has a first capacitance when current flows in the first direction greater than a second capacitance of the circuit when current flows in the second direction;
current switches from the first direction to the second direction, and
each of said plurality of units is connected in parallel with one another such that energy is generated when the first capacitance is less than double the second capacitance.

US Pat. No. 10,250,165

HIGH SPEED ACTUATOR INCLUDING ACTIVE STIFFNESS CONTROLLER AND METHOD OF DRIVING THE SAME

1. A high speed actuator comprising:an actuation part configured to cause deformation that includes bending or twisting; and
an active stiffness controller on a surface of the actuation part or in the actuation part configured to control in real time a stiffness according to an external signal, wherein:
the actuation part comprises:
a first actuation part including a plurality of first smart materials or smart material units and a first base material supporting the plurality of first smart materials or smart material units, the first actuation part being deformable in a first direction; and
a second actuation part including a plurality of second smart materials or smart material units and a second base material supporting the plurality of second smart materials or smart material units, the second actuation part being deformable in a second direction,
the plurality of first smart materials are arranged or oriented in a first common direction,
the plurality of second smart materials are arranged or oriented in a second common direction, and
the first direction in which the first actuation part is deformable differs from the second direction in which the second actuation part is deformable.

US Pat. No. 10,250,164

INERTIAL DRIVE

1. An inertial drive, comprising a variable-length piezoelectric actuator element, further comprising:a frame element with a support section including a support surface on which a first end section of the actuator element is supported, and with a deformation section including an abutment surface against which a second end section of the actuator element bears, said second end section being situated opposite the first end section of the actuator element, wherein the deformation section has a joint section;
a flat spring element which is arranged on the deformation section of the frame element and which includes a friction section which forms a free end of the spring element; and
a friction body for being driven, which friction body is in direct or indirect mechanical contact with the friction section, wherein a length change of the actuator element gives rise to a rotational movement of the deformation section about the joint section, which rotational movement is transmitted via the spring element to the friction section for the purposes of driving the friction body for being driven, wherein the friction section is arranged spaced apart from the abutment surface of the deformation section when viewed in a direction which points away from the abutment surface;
wherein the frame element has a counterbearing section and a bearing section, wherein the spring element lies on the bearing section, and the section of the spring element between the counterbearing section and the bearing section forms a clamping section with a non-zero clamping length LS such that the spring element exerts a permanent preload directed toward the surface of the friction body, and said preload is transmitted via the frame element to the actuator element and effects a permanent pressure load on the actuator element, which pressure load is adjustable by way of the deformation of the spring element.

US Pat. No. 10,250,163

INVERSE ELECTROWETTING ENERGY HARVESTING AND SCAVENGING METHODS, CIRCUITS AND SYSTEMS

STMicroelectronics S.r.l....

1. An inverse electrowetting harvesting and scavenging circuit, comprising:a first substrate having a first surface and a second surface;
an electrode formed proximate the first surface, the electrode including a first insulating layer covering a surface of the electrode;
an electromechanical systems device including a moveable mass that extends over the first surface of the first substrate and may be displaced relative to the first substrate in three dimensions responsive to an external force applied to the moveable mass;
a moveable electrode formed on the moveable mass;
a conductive fluid positioned between the insulating layer covering the electrode and the movable electrode; and
energy harvesting and scavenging circuitry electrically coupled to the moveable electrode and the electrode, the energy harvesting and scavenging circuitry configured to provide electrical energy responsive to electrical energy generated by the moveable electrode, the conductive fluid and the electrode through reverse electrowetting due to movement of the moveable electrode relative to the electrode and to the conductive fluid on top of the electrode.

US Pat. No. 10,250,162

DC BIAS PREVENTION IN TRANSFORMERLESS INVERTERS

KOOLBRIDGE SOLAR, INC., ...

1. A method of operating a transformerless DC to AC converter comprising circuitry including a plurality of transistor switches and a controller operative to control the switches to commutate DC inputs onto AC outputs so as to generate an approximation of an AC waveform at a desired power line frequency, comprising:monitoring a DC bias component on the AC output of the converter;
comparing the DC bias component to a predetermined threshold; and
only when the DC bias component is below the predetermined threshold, modifying, by the controller, the AC waveform generated, so as to reduce the DC bias component.

US Pat. No. 10,250,161

ADAPTIVE HARMONIC ELIMINATION COMPENSATION FOR VOLTAGE DISTORTION ELEMENTS

Rockwell Automation Techn...

1. A power conversion system, comprising:a rectifier, including an input to receive an AC input signal, and an output to provide a DC bus voltage signal;
an inverter, including an inverter input connected to receive the DC bus voltage signal, and an inverter output to provide an AC output current signal to drive a load; and
a controller, including a processor configured to execute program instructions from an electronic memory to:
compute an angle of the AC output current signal,
compute a first voltage error that represents an inverter switch dead time voltage error in a synchronous reference frame according to the angle,
compute a second voltage error that represents a harmonic voltage error in the synchronous reference frame according to the angle, and according to an operating frequency of the inverter,
compute a compensated voltage command according to the first voltage error, according to the second voltage error, and according to a voltage control reference, and
control the AC output of the inverter according to the compensated voltage command.

US Pat. No. 10,250,160

METHOD FOR CONTROLLING A PHOTOVOLTAIC INVERTER FOR NETWORK FAULT RIDE-THROUGH AND A PHOTOVOLTAIC INVERTER SYSTEM

GE ENERGY POWER CONVERSIO...

1. A method of controlling an inverter, which is connected between a photovoltaic (PV) generator and a power supply network for ride-through of a network fault, the method comprising:detecting a voltage dip in a network voltage (Uac);
monitoring a DC link voltage (Udc) of a DC voltage link at a DC voltage input of the inverter;
detecting when the DC link voltage (Udc) exceeds an upper limit value (UTHup), wherein the upper limit value (UTHup) of a saturation voltage (Udc,nom(max)) corresponds to a specific Iac/Udc characteristic curve of the inverter, above which a maximum AC output current (Iac,max) of the inverter decreases; and
activating a power dissipation device, which is connected in parallel to the DC voltage link to dissipate, if necessary, a power from the DC voltage link, and controlling the power dissipation device to keep the DC link voltage (Udc) within a range between the upper limit value (UTHup) and a lower limit value (UTHlow), which is smaller by a predetermined voltage difference (?U) than the upper limit value (UTHup).

US Pat. No. 10,250,159

FIVE-LEVEL INVERTER TOPOLOGY WITH HIGH VOLTAGE UTILIZATION RATIO

1. A single phase five-level inverter topology for use with two serially connected DC power supplies, comprising a half-bridge inverter circuit;wherein the common terminal of the two DC power supplies is connected to the load of the half-bridge inverter circuit;
the half-bridge inverter circuit comprises a first circuit module and a second circuit module; the first circuit module in the half-bridge inverter circuit is connected between the two DC power supplies and the second circuit module;
the second circuit module comprises at least a floating capacitor, a current limiting device; the current limiting device is located in the charging circuit loop of the floating capacitor to limit the surge current when the floating capacitor is charged;
the first circuit module provides at least two circuit branches between either of the two DC power supplies and the second circuit module;
the two circuit branches are extended to the floating capacitor inside of the second circuit module;
the floating capacitor is charged by the first DC power supply or the second DC power supply;
the second circuit module outputs five mutually different voltage levels including zero;
either the first DC power supply or the second DC power supply provides power to the load of the half-bridge inverter circuit, or the first DC power supply or the second DC power supply alternatively added algebraically to the floating capacitor provides power to the load of the half-bridge inverter circuit.

US Pat. No. 10,250,158

DIRECT CONVERSION SWITCHED-MODE AC/DC CONVERTER

1. An AC-voltage-to-DC-voltage conversion circuit, comprising:first, second, third and fourth switches being current and voltage bidirectional and forming a first bridge having first and second input nodes and first and second output nodes, the first and fourth switches being series-coupled between the first and second input nodes of the first bridge and forming a first branch of the first bridge, the second and third switches being series-coupled between the first and second input nodes of the first bridge in parallel to the first branch of the first bridge and forming a second branch of the first bridge, and the first and second output nodes of the first bridge being respectively coupled to an intermediate node of the first branch of the first bridge, between the first and fourth switches, and to an intermediate node of the second branch of the first bridge, between the second and third switches, the first and second input nodes of the first bridge being respectively directly coupled to first and second nodes of application of an AC voltage;
a first capacitor connected in parallel with the first bridge between the first and second input nodes of the first bridge; and
a control circuit configured to control the bridge alternately to a first configuration where the first and third switches are on and the second and fourth switches are off and to a second configuration where the first and third switches are off and the second and fourth switches are on,
the control circuit being configured to, during a phase of transition between the first and second configurations, successively:
turn off the first and third switches; and
for each of the second and fourth switches, monitor a voltage across the switch and turn on the switch only when the voltage thereacross takes a zero value.

US Pat. No. 10,250,156

CRYOGENIC FUEL POWER SYSTEM

General Electric Company,...

1. A cryogenic fuel power system, comprising:an engine;
a cryogenic fuel supply configured to supply cryogenic fuel to be used as fuel by the engine;
a cryogenic bus configured to provide the cryogenic fuel from the cryogenic fuel supply to the engine;
power electronics circuitry configured to convert power from the engine into a form to be applied to one or more loads, wherein the power electronics circuitry is positioned in thermal communication with the cryogenic bus to transfer heat from the power electronics circuitry to the cryogenic fuel;
wherein the cryogenic bus comprises a conduit and an enclosure that includes a housing of power electronics circuitry, and wherein the cryogenic fuel tank provides cryogenic fuel to the enclosure to place the housing of the power electronics circuitry in thermal communication with the cryogenic fuel;
wherein the cryogenic power system comprises a plurality of unit blocks, wherein the cryogenic fuel power system is configured to divide power to a plurality of phases of each of the unit blocks of the plurality of unit blocks to power the one or more loads; and
wherein an output ripple frequency is equal to 2N times a switching frequency of the power electronics circuitry where N is a number of the plurality of phases of each of the unit blocks.

US Pat. No. 10,250,155

ELECTRICAL POWER CONVERSION DEVICE

DENSO CORPORATION, Kariy...

1. An electric power conversion device comprising:one or more semiconductor modules, each comprising built-in semiconductor elements, a positive electrode terminal, a negative electrode terminal and a control terminal;
a control circuit board connected to the control terminal of the semiconductor module, and capable of driving the built-in semiconductor elements;
a main P bus bar connected to the positive electrode terminal of the semiconductor module, through which direct current power is supplied;
a main N bus bar connected to the negative electrode terminal of the semiconductor module, through which the direct current power is supplied;
a capacitor module comprising a first capacitor, a capacitor P bus bar and a capacitor N bus bar, the first capacitor, the capacitor P bus bar and the capacitor N bus bar being molded by capacitor mold resin, the capacitor P bus bar being connected to a positive electrode terminal of the first capacitor, and the capacitor N bus bar being connected to a negative electrode terminal of the first capacitor;
an input P bus bar connected to a positive electrode terminal of a direct current power source; and
an input N bus bar connected to a negative electrode terminal of the direct current power source, the input N bus bar comprising a first N connection section and a second N connection section, the first N connection section being connected to the capacitor N bus bar, and the second N connection section being connected to the main N bus bar, and the main N bus bar being arranged outside of the capacitor mold resin with which the first capacitor, the capacitor P bus bar and the capacitor N bus bar are molded.

US Pat. No. 10,250,154

DATA PROCESSING DEVICE AND METHOD FOR HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM

LSIS CO., LTD., Anyang-s...

1. A data processing device in a high voltage direct current (HVDC) transmission system, the data processing device comprising:at least one measurement module configured to measure a voltage or current at one or more points in the HVDC system; and
a data generation module, wherein the data generation module includes a first data generation part and a second data generation part, wherein the first data generation part and the second data generation part are two of a plurality of data generation parts,
each of the plurality of data generation parts being connected in series through a daisy chain to a communication interface,
wherein the communication interface is connected to a control unit,
the first data generation part having a first input terminal and a first output terminal, wherein the first input terminal receives data from the at least one measurement module;
the second data generation part having a second input terminal and a second output terminal, wherein the first output terminal is connected to the second input terminal via an optical waveguide;
wherein the first data generation part generates a first measurement data unit and a master synchronization signal, and the second data generation part generates a second measurement data unit using measurement values measured by the at least one measurement module,
wherein the master synchronization signal is used to start data transmission to the control unit, and the first measurement data unit and the second measurement data unit are sent to the control unit by serial transmission of the first and second generated measurement data units via time division multiplexing (TDM) without time-dividing the generated measurement data units,
wherein each of the first and second data generation parts outputs a transmission completion signal indicating transmission of a corresponding one of the generated measurement data units is completed,
wherein the control unit provides the received first measurement data unit and the second measurement data unit to an external source based on a trigger, wherein the trigger is at least one of a regular time interval, an irregular time interval, and a request from the external source.

US Pat. No. 10,250,153

DATA PROCESSING DEVICE FOR HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM AND METHOD THEREOF

LSIS CO., LTD., Anyang-s...

1. A data processing device of a high voltage direct current (HVDC) transmission system, comprising:a plurality of measuring modules configured to measure voltage and current values in the HVDC transmission system;
a data processing part comprising a plurality of data unit generating parts configured to generate a plurality of measured data units by using the measured values received from the plurality of measuring modules;
a communication module configured to transmit the plurality of measured data units to outside by using a wavelength division multiplexing method; and
an optical fiber,
wherein the plurality of data unit generating parts are configured to transfer the plurality of measured data units to the communication module,
wherein the communication module is configured to assign a wavelength band to one or more of the plurality of data unit generating parts and transmit the plurality of measured data units in parallel through the optical fiber based on assigned wavelength bands,
wherein the HVDC transmission system comprises a power generating part, a transmission side alternating current (AC) part, a transmission side power transformation part, a direct current (DC) power transmission part, a customer side power transformation part, a customer side AC part, and a customer part, and
wherein the data processing device controls at least one of the power generating part, the transmission side AC part, the transmission side power transformation part, the DC power transmission part, the customer side power transformation part, the customer side AC part, and the customer part.

US Pat. No. 10,250,152

FORCED ZERO VOLTAGE SWITCHING FLYBACK CONVERTER

Alpha and Omega Semicondu...

1. A flyback converter, comprising:a transformer having a primary winding receiving an input voltage and a secondary winding providing an output voltage;
a primary switch coupled to the primary winding;
a synchronous rectifier coupled to the secondary winding;
an output capacitor coupled across the secondary winding;
a controller coupled to generate control signals to drive the primary switch and the synchronous rectifier; and
a positive current detect circuit configured to sense a secondary current flowing in the secondary winding and to generate a detection signal in response to detecting the secondary current having a positive current value,
wherein the controller generates a control signal to turn the primary switch and the synchronous rectifier on and off alternately within a switching cycle, the synchronous rectifier being turned on for a first on-duration within the switching cycle in response to the primary switch being turned off and the controller generates the control signal to turn off the synchronous rectifier for the first on-duration in response to detecting the secondary current reaching a zero current value and the controller continues to monitor the output voltage, and in response to the output voltage being at or less than a reference voltage, the controller generates the control signal to turn on the synchronous rectifier for a second on-duration within the switching cycle, the controller thereby operating the flyback converter in a discontinuous conduction mode.

US Pat. No. 10,250,151

FLYBACK CONVERTER CONTROLLED FROM SECONDARY SIDE

NANJING GREENCHIP SEMICON...

1. A flyback converter with secondary side control comprising:a transformer having a primary winding and a secondary winding, wherein the primary winding is configured to receive an input voltage, the secondary winding is coupled to the primary winding and connects to a rectifier circuit to generate a DC output voltage;
wherein the rectifier circuit includes an output capacitor to provide the DC output voltage;
a rectifier switching device connected in series to the secondary winding and the output capacitor for providing a rectifier path and a switching path;
a secondary side control circuit configured to detect the DC output voltage or a current passing the rectifier switching device and to control the states of the rectifier switching device according to the variations between a pre-set voltage or a current value and the corresponding detected DC output voltage or the detected current passing the rectifier switching device;
a primary side switching device connected to one end of the primary winding for switching between on and off states;
an auxiliary winding coupled to the secondary winding and configured to provide power and to detect the states of the secondary side rectifier switching device; and
a primary side control circuit configured to control the primary side switching device based on the detected output state of the secondary winding from the auxiliary winding, wherein the primary side control circuit supports multi-modes for providing different switching modes under various load conditions including a continuous conduction mode operated under heavy load condition, a quasi-resonant mode operated under medium load condition, a green or frequency-skipping mode under light load condition, and a burst mode operated under no load condition.

US Pat. No. 10,250,150

METHOD FOR DRIVING A RESONANT CONVERTER, AND CORRESPONDING CONVERTER AND COMPUTER PROGRAM PRODUCT

STMicroelectronics S.r.l....

1. A driving circuit configured to be coupled to a resonant converter including a primary winding, a secondary winding including a first node and a second node and being magnetically coupled to the primary winding, and including first and second rectification switches coupled to the first and second nodes of the secondary winding, respectively, the driving circuit configured to receive a start signal synchronized with a transition of a current signal through the secondary winding and to receive a voltage across one of the first and second rectification switches, the driving circuit further configured to detect the transition of the start signal, to detect a zero current condition in the first and second rectification switches, to turn off the first rectification switch after a variable delay with respect to the transition of the start signal, with the second rectification switch remaining turned on, to detect a zero voltage condition across the first rectification switch, and to turn on the first rectification switch responsive to the voltage across the first rectification switch reaching a variable threshold.

US Pat. No. 10,250,149

SYSTEMS AND METHODS OF OPERATION FOR POWER CONVERTERS HAVING SERIES-PARALLEL MODE ACTIVE CLAMPS

Apple Inc., Cupertino, C...

1. A power conversion apparatus, comprising:a transformer, wherein the transformer has a primary winding and a secondary winding;
a first switch coupled to the primary winding so as to control a flow of current through the primary winding;
a second switch coupled to the primary winding, so as to control a flow of current through an active resonant clamp circuit,
wherein the active resonant clamp circuit is configured to absorb leakage energy from the primary winding, and comprises:
a first capacitor coupled to the primary winding;
a second capacitor coupled to the primary winding; and
a first diode connected in series between the first capacitor and the second capacitor; and
a controller coupled to the first switch and the second switch.

US Pat. No. 10,250,148

PRINTING APPARATUS, CONTROL METHOD THEREOF, AND POWER SUPPLY CIRCUIT THEREFOR

Seiko Epson Corporation, ...

1. A printing apparatus comprising:a switching power supply circuit including
a primary side circuit configured to perform a power switching operation,
a secondary side circuit having a shunt regulator and configured to output an output voltage to a load side,
a feedback circuit configured to feed a comparison result between the output voltage of the secondary side circuit and a reference voltage of the shunt regulator back to the primary side circuit to control the output voltage of the secondary side circuit,
a control signal circuit configured to input a control signal to the feedback circuit to control the output voltage of the secondary side circuit, and
a switch circuit configured to cut off a current to be supplied to the shunt regulator in a case where the output voltage of the secondary side circuit is decreased in accordance with the control signal,
the printing apparatus further comprising a control circuit configured to output the control signal to the control signal circuit,
wherein, in a case where an operation mode is at least one of an off mode or a standby mode, the control circuit outputs the control signal to the control signal circuit to decrease the output voltage of the secondary side circuit.

US Pat. No. 10,250,147

SWITCHED-MODE POWER SUPPLY AND METHOD FOR OPERATING A SWITCHED-MODE POWER SUPPLY

ROBERT BOSCH GMBH, Stutt...

1. A switch-mode power supply, having:a control element situated in a primary circuit for controlling a transformer with the aid of an electric controlled variable;
an ascertainment device that is situated in a secondary circuit for ascertaining an electric output variable of the secondary circuit;
a first regulating element that is situated in the secondary circuit, functionally connected with the control element, and configured to regulate the electric output variable of the secondary circuit;
a coupling element, interconnected between the primary circuit and the secondary circuit, functionally connecting the ascertainment device with the control element for transmitting the ascertained electric output variable of the secondary circuit to the control element of the first circuit; and
a second regulating element that is situated in the primary circuit for regulating the electric controlled variable of the control element as a function of a temperature of an element of the primary circuit ascertained by the second regulating element, wherein the second regulating element is connected in parallel to the coupling element.

US Pat. No. 10,250,146

SOFT-START POWER SUPPLY CIRCUIT, METHOD FOR CONTROLLING THE SAME, AND DISPLAY DEVICE

BOE TECHNOLOGY GROUP CO.,...

1. A soft-start power supply circuit, comprising a feedback operation circuitry, a soft-start circuitry, a driving circuitry and a rectifying and filtering circuitry; wherein,the soft-start circuitry is coupled to an input voltage terminal, a ground terminal and a feedback voltage terminal, and is configured to pull up a potential of the feedback voltage terminal to a potential of the input voltage terminal during a first phase of an operating cycle and to pull down the potential of the feedback voltage terminal to a potential of the ground terminal during a second phase of the operating cycle;
the feedback operation circuitry is coupled to the ground terminal, the feedback voltage terminal and the driving circuitry, and is configured to control the driving circuitry to be turned off during the first phase such that no signal is output by an output voltage terminal, and to control the driving circuitry to be turned on and off alternately during the second phase;
the driving circuitry is coupled to the input voltage terminal and the rectifying and filtering circuitry, and is configured to output a signal of the input voltage terminal to the rectifying and filtering circuitry, in an on state; and
the rectifying and filtering circuitry is coupled to the output voltage terminal, and is configured to rectify and filter the signal input into the rectifying and filtering circuitry, and output the rectified and filtered signal to the output voltage terminal, so as to enable a voltage output by the output voltage terminal during the second phase to increase gradually to a supply voltage, wherein:
the soft-start circuitry comprises a first switch transistor, a first resistor, a second resistor, a first capacitor, a second capacitor and a diode;
a first electrode of the first switch transistor is coupled to the input voltage terminal, a gate electrode of the first switch transistor is coupled to an end of the first resistor, and a second electrode of the first switch transistor is coupled to an anode of the diode;
the other end of the first resistor is coupled to the input voltage terminal;
an end of the second resistor is coupled to the anode of the diode, and the other end of the second resistor is coupled to the ground terminal;
a cathode of the diode is coupled to the feedback voltage terminal;
an end of the first capacitor is coupled to the gate electrode of the first switch transistor, and the other end of the first capacitor is coupled to the ground terminal; and
an end of the second capacitor is coupled to the anode of the diode, and the other end of the second capacitor is coupled to the ground terminal.

US Pat. No. 10,250,145

DEVICE FOR AVOIDING HARD SWITCHING IN RESONANT CONVERTER AND RELATED METHOD

STMicroelectronics S.r.l....

1. A method, comprising:precharging a bootstrap capacitor of a resonant converter for a first time period during an initial switching cycle of the resonant converter;
maintaining a high-side transistor and a low-side transistor in a half-bridge circuit of the resonant converter switched off for a second time period after the first time period during the initial switching cycle, a half-bridge node being defined at an interconnection of the high-side and low-side transistors and each of the high-side and low-side transistors including a body diode and the second time period being long enough to allow any oscillations of a half-bridge voltage on the half-bridge node to reduce to a level that will not cause current to flow through the body diodes of the high-side and low-side transistors; and
switching on the high-side transistor after expiration of the second time period during the initial switching cycle.

US Pat. No. 10,250,144

INPUT VOLTAGE DETECTION FOR A POWER CONVERTER INCLUDING A TRANSFORMER HAVING A PRIMARY SIDE AND A SECONDARY SIDE

INFINEON TECHNOLOGIES AUS...

1. A method for operating a converter comprising:determining a first voltage drop across a primary side of a transformer with the primary side and a secondary side, the transformer also comprising a switching element that is used to convey energy from the primary side to the secondary side;
determining a second voltage drop across at least one component of the converter's primary side; and
when the switching element is switched on, determining an input voltage at the converter based on the first and second voltage drops, the input voltage being determined based on:
the first voltage drop across the primary side of the transformer, the first voltage drop being determined by a voltage drop across an auxiliary winding of the transformer;
the second voltage drop being determined across a sense resistor,
wherein determining the input voltage comprises using the formula
Vin=Vpri+VCS*(RDSon+R2)/R2,whereinVin is the input voltage,
Vpri is the voltage at the primary side of the transformer,
VCS is the voltage drop across the sense resistor,
R2 is the sense resistor, and
RDSon is the resistance of the switching element.

US Pat. No. 10,250,143

AC-DC CONVERTING APPARATUS AND METHOD THEREOF

Monolithic Power Systems,...

1. An AC/DC converting apparatus for converting an AC input voltage Vin to a DC output voltage Vout, comprising:a first input node and a second input node to which the AC input voltage Vin is inputted, wherein a cycle of the AC input voltage has a first portion having a first polarity and a second portion having a second polarity;
an output node from which the DC output voltage Vout is outputted;
a first buck-boost converter having a first pair of switches for selectively coupling a first terminal of a first inductor to the first input node and a ground, and a second pair of switches for selectively coupling a second terminal of the first inductor to the output node and the ground;
a second buck-boost converter having a third pair of switches for selectively coupling a first terminal of a second inductor to the second input node and the ground, and a fourth pair of switches for selectively coupling a second terminal of the second inductor to the output node and the ground; and
a controller configured to control the first, second, third and fourth pair of switches, wherein the first pair of switches is turned ON when the AC input voltage Vin is in the first portion, and the third pair of switches is turned ON when the AC input voltage Vin is in the second portion.

US Pat. No. 10,250,142

ADVANCED CONSTANT OFF-TIME CONTROL FOR FOUR-SWITCH BUCKBOOST CONVERTER

M3 TECHNOLOGY INC., Taip...

1. A computer-implemented method for managing a four-switch BUCKBOOST converter of a system with a combination of a Constant Off-time (COT) control and a Peak Current Mode (PCM) control, comprising:determining an input voltage (VIN) and an output voltage (VOUT) of the four-switch BUCKBOOST converter;
in an event that VIN is greater than a first threshold voltage, enabling a BUCK mode for the four-switch BUCKBOOST converter;
in an event that VIN is an a second threshold voltage, enabling a BOOST mode for the four-switch BUCKBOOST converter;
in an event that VIN is between the second threshold voltage and the first threshold voltage, enabling a BUCKBOOST mode for the four-switch BUCKBOOST converter,
wherein the BUCK Toff timer comprises a BUCK capacitor and a BUCK comparator while the BOOST Toff timer comprises a BOOST capacitor and a BOOST comparator, wherein the BUCK Toff timer calculates the off time for the first high side switch and the first low side switch using the following formula:

wherein CBUCK is capacitance of the BUCK capacitor and VBIASBUCK is a bias voltage for the BUCK comparator,
wherein the BOOST Toff timer calculates off time for the second high side switch and the second low side switch using the following formula:

wherein CBOOST is capacitance of the BOOST capacitor and VBIASBOOST is a bias voltage for the BOOST comparator,
wherein k1 and k3 are voltage scaling factors while k2 and k4 are voltage to current scaling factors.

US Pat. No. 10,250,140

SWITCHING CONTROLLER

1. A switch-mode converter powered by a positive voltage and a negative voltage, both relative to a ground, and delivering an outlet voltage between a first outlet terminal and a second outlet terminal, which the second outlet terminal is connected to the ground either directly or via a resistance, the switch-mode converter having two windings wound in opposition about a magnetic core:a first end of the first winding being connected to a midpoint of a first branch that connects the positive voltage to the negative voltage, a portion of the first branch connecting its midpoint to the positive voltage comprising a series connection of first switch-forming means and a first diode in forward connection relative to the positive voltage and together forming a unidirectional switch having forward and reverse blocking power, the portion of the first branch connecting its midpoint to the negative voltage comprising a series connection of second switch-forming means and a second diode forwardly mounted relative to the negative voltage and together forming a unidirectional switch having forward and reverse blocking power;
a second end of the first winding being connected to the first outlet terminal; and
a first end of the second winding being connected to a midpoint of a second branch that connects the positive voltage to the negative voltage and that comprises a third diode and a fourth diode in reverse connection, the midpoint of the second branch being situated between the third diode and the fourth diode;
the switch-mode converter being characterized in that it includes third switch-forming means and fourth switch-forming means together forming a bidirectional switch having forward and reverse blocking power, the third and fourth means being arranged in series between a second end of the second winding and the ground.

US Pat. No. 10,250,139

APPARATUSES AND METHODS FOR A LOAD CURRENT CONTROL CIRCUIT FOR A SOURCE FOLLOWER VOLTAGE REGULATOR

Micron Technology, Inc., ...

1. An apparatus comprising:a voltage regulator configured to produce a regulated voltage;
a plurality of current circuits coupled in parallel between an output node and a power node, each of the plurality of current circuits including first and second transistors coupled in series, the first transistor of each of the plurality of current circuits being biased with the regulated voltage; and
a load detection circuit comprising third and fourth transistors connected in series, the fourth transistor biased with the regulated voltage and configured to create load threshold voltages at a source of the fourth transistor and after respective ones of a plurality of resistors coupled in series to the source of the fourth transistor, the load detection circuit operable to activate the second transistor of selected one or ones of the plurality of current circuits in response to a comparison of respective ones of the threshold voltages with a voltage at the output node.

US Pat. No. 10,250,138

DIGITAL VOLTAGE COMPENSATION FOR POWER SUPPLY INTEGRATED CIRCUITS

INTERSIL AMERICAS LLC, M...

1. A power supply providing an output voltage, the power supply comprising:an error amplifier controlling the power supply based on comparing a reference voltage with a feedback voltage representative of the output voltage; and
a control circuit that receives a requested target for the output voltage and calculates an offset based on the requested target and a present target, wherein the requested target is higher than the present target, the offset being used to modify the reference voltage such that the output voltage reaches and exceeds the requested target within a specified time.

US Pat. No. 10,250,137

WIDE RANGE POWER SUPPLY FOR USE IN METERS AND OTHER DEVICES

1. A power conversion arrangement, comprising:a first power conversion stage having a first input configured to receive an input voltage, an output having a first output voltage, a feedback node having a feedback voltage, the feedback node coupled to the output by a first impedance, and a controller operably coupled to receive the feedback voltage configured to drive the output such that the feedback voltage is substantially at a predetermined value, a variable resistance coupled between the feedback node and ground, the variable resistance having a resistance value that varies as a function of the input voltage; and
a second power conversion stage having a second stage input operably coupled to receive the first output voltage, the second power conversion stage configured to generate a second output voltage having a voltage level that is substantially constant independent of a voltage level of the first output voltage.

US Pat. No. 10,250,136

METHOD FOR CONTROLLING A DC-DC CONVERTER AND A DC-DC CONVERTER FOR IMPLEMENTING SUCH A CONTROL METHOD

1. A method for controlling a DC-DC converter comprising an energy accumulation element, an energy storage element and a switching element, said control causing the control unit to perform:generating a control signal for the switching element with a duty cycle ? that is a function of information relating to the output electrical conditions of said converter;
controlling said switching element by means of said control signal (CS);
compensating said control signal for a continuous conduction mode;
compensating said control signal for a discontinuous conduction mode;
estimating the current operating mode of said converter in order to control the implementation either of the continuous conduction mode compensation or of the discontinuous conduction mode compensation as a function of the estimated current operating mode;said estimating comprising:computing the theoretical duty cycle ?CCM in continuous conduction mode;
computing the theoretical value of the limit duty cycle ?lim.th between the two CCM and DCM operating modes, the theoretical value of the limit duty cycle ?lim.th being able to be computed on the basis of the following expression:

where Lp is the inductance of the transformer with respect to its primary winding, fd is the switching frequency of the switching element, Zth is the theoretical value of the load and N is the ratio of the number of turns of the transformer;
comparing the value of the theoretical duty cycle ?CCM in continuous conduction mode, the theoretical value of the limit duty cycle ?lim.th and the value of the current duty cycle ?; and
determining the continuous conduction mode CCM if the value of the current duty cycle ? greater than the value of the theoretical duty cycle ?CCM in continuous conduction mode;
determining the discontinuous conduction mode DCM if the value of the current duty cycle ? is less than the theoretical value of the limit duty cycle ?lim.th;
indetermining the operating mode if the value of the current duty cycle ? is between the theoretical value of the limit duty cycle ?lim.th and the value of the theoretical duty cycle ?CCM in continuous conduction mode.

US Pat. No. 10,250,135

FAST RESPONSE CONTROL CIRCUIT AND CONTROL METHOD THEREOF

Silergy Semiconductor Tec...

1. A control circuit configured to control a switch mode power supply, said control circuit comprising:a) a compensation signal generating circuit configured to generate a compensation signal according to an error between an output voltage feedback signal and a first reference voltage of said switch mode power supply;
b) a switching signal generating circuit configured to control a switching operation of a power switching device of said switch mode power supply according to said compensation signal;
c) a judge circuit configured to receive a plurality of threshold signals at a corresponding plurality of comparators, and to determine an operation state of said switch mode power supply according to said output voltage feedback signal and said plurality of threshold signals, wherein each of said plurality of threshold signals are different than said first reference voltage, and wherein an output of each of said plurality of comparators is coupled to an anode of a diode that has a cathode coupled to a resistor;
d) a loop gain regulating circuit having an output node coupled to an output node of said compensation signal generating circuit, and being configured to regulate said compensation signal to regulate a loop gain of said control circuit according to said operation state by changing a gain of said compensation signal generating circuit; and
e) a switch period regulating circuit configured to increase a switch period of said power switching device when said output voltage feedback signal is greater than said first reference voltage, and to decrease said switch period when said output voltage feedback signal is less than said first reference voltage.

US Pat. No. 10,250,134

POWER MANAGER

Revision Military Ltd., ...

1. A power manager comprising:a DC power bus;
a plurality device ports each configured to interface with an external power device comprising any one of a DC power source, a DC power load and a rechargeable DC battery;
a unidirectional DC to DC input power converter having an input side and an output side;
an input power channel disposed between the DC power bus and a first of a plurality of device ports wherein the input power channel includes a first input portion that connects the input power converter input side to the first of the plurality of device ports and a first input switch disposed along the first input portion, and a second input portion that connects the input power converter output side to the DC power bus, wherein operation of the first input switch selectively connects the input power converter input side to, or selectively disconnects the input power converter input side from, the first of the plurality of device ports;
a unidirectional DC to DC output power converter having an input side and an output side;
an output power channel disposed between the DC power bus and a second of the plurality of device ports wherein the output power channel includes a first output portion that connects the output power converter output side to the second of the plurality of device ports and first output switch disposed along the first output portion and a second portion that connects the output power converter input side to the DC power bus wherein operation of the first output switch selectively connects the output power converter output side to, or selectively disconnects the output power converter output side from the second of the plurality of device ports;
a first universal power channel that includes a first controllable switch disposed between the output side of the output power converter and the first of the plurality of device ports;
wherein the power manager operates at least one of the input power converter, the first input switch, the output power converter the first output switch and the first controllable switch to selectively connect a first external power device connected to the first of the plurality of device ports to the input side of the input power converter for connection to the DC power bus as a power source, with an input power conversion, or to selectively connect the first external power device connected to the first of the plurality of device ports to the output side of the output power converter for connection to the DC power bus as a power load, with an output power conversion.

US Pat. No. 10,250,133

SINGLE-STAGE CMOS-BASED VOLTAGE QUADRUPLER CIRCUIT

STMicroelectronics Intern...

1. A circuit, comprising:a first transistor having a source-drain path coupled between a voltage input node and a first node;
a first boost capacitor having a first plate coupled to the first node and a second plate coupled to receive a first clock signal;
a first level shifting circuit configured to receive the first clock signal and output a level shifted first clock signal;
a second level shifting circuit configured to receive a second clock signal that is a logical invert of the first clock signal and output a level shifted second clock signal;
a second transistor having a source-drain path coupled between the voltage input node and a second node;
a first bootstrapping capacitor having a first plate coupled to the second node and a second plate coupled to receive the level shifted first clock signal;
a third transistor having a source-drain path coupled between the first node and a third node, said third transistor having a gate controlled by a first control signal at the second node; and
a second boost capacitor having a first plate coupled to the third node and a second plate coupled to receive the level shifted second clock signal;
wherein a gate of the first transistor and a gate of the second transistor are both driven by a second control signal.

US Pat. No. 10,250,132

VOLTAGE SYSTEM AND OPERATING METHOD THEREOF

NANYA TECHNOLOGY CORPORAT...

1. A voltage system, comprising:an oscillator configured to provide an oscillation signal exhibiting a first frequency when a voltage level of a supply voltage is greater than a reference voltage level, and to provide the oscillation signal exhibiting a second frequency greater than the first frequency when the voltage level of the supply voltage is less than the reference voltage level; and
a pump device configured to provide the supply voltage, based on a frequency of the oscillation signal provided by the oscillator, by performing a charging operation;
the reference voltage level being a second reference voltage level, wherein the oscillator is deactivated when the voltage level of the supply voltage is greater than a first reference voltage level greater than the second reference voltage level;
wherein the oscillator provides the oscillation signal exhibiting the first frequency when the voltage level of the supply voltage is less than the first reference voltage level and greater than the second reference voltage level.

US Pat. No. 10,250,131

LOW-NOISE HIGH EFFICIENCY BIAS GENERATION CIRCUITS AND METHOD

pSemi Corporation, San D...

1. A charge pump having a plurality of transfer control switches (“TCSwitches”) coupled to one or more transfer capacitors, such that in a first state of the TCSwitches charge is transferred from an input supply to a transfer capacitor, and in a second state of the TCSwitches charge is transferred from the transfer capacitor to an output supply, the charge pump including a charge pump clock whose output controls the switches, the charge pump clock being a ring oscillator comprising:a plurality of ring oscillator inverter stages coupled together in a ring whereby each inverter stage has an input coupled to an output of an immediately preceding inverter stage and an output coupled to an input of an immediately subsequent inverter stage;wherein:the charge pump clock output is substantially sine-like, and
a transfer control switch of the plurality of transfer control switches comprises:
a transistor coupled, by way of a first node of the transistor, to a transfer capacitor of the one or more transfer capacitors, and capacitively coupled, by way of a second node of the transistor, to the charge pump clock; and
an active biasing resistor coupled, by way of a first node of the active biasing resistor, to a biasing voltage node adapted to carry a biasing voltage, and coupled, by way of a second node of the active biasing resistor, to the second node of the transistor,
wherein more average current flows from the first node to the second node of the active biasing resistor when an average voltage of the first node is greater than an average voltage of the second node, but
current does not flow between the first node and second node of the active biasing circuit during significant portions of a cyclic waveform appearing between the first and second nodes.

US Pat. No. 10,250,130

CAPACITOR RECONFIGURATION OF A SINGLE-INPUT, MULTI-OUTPUT, SWITCHED-CAPACITOR CONVERTER

President and Fellows of ...

1. A capacitor bank, comprising:a capacitance resource comprising a cathode and an anode; and
a switching matrix comprising a first terminal, a second terminal, a third terminal;
a first switch pair comprising:
a first switch connecting the first terminal to the anode; and
a second switch connecting the second terminal to the cathode, wherein the first switch and the second switch are configured to switch between both open and both closed;
a second switch pair comprising:
a third switch connecting the second terminal to the anode; and
a fourth switch connecting the third terminal to the cathode, wherein the third switch and the fourth switch are configured to switch between both open and both closed;
a first flying inverter comprising the first switch and the third switch; and
a second flying inverter comprises the second switch and the fourth switch,
wherein the first switch pair and the second switch pair are configured to switch between:
a connection of the first terminal to the anode and the second terminal to the cathode;
and
a connection of the second terminal to the anode and the third terminal to the cathode.

US Pat. No. 10,250,129

CHARGE PUMP CIRCUIT AND INTERNAL VOLTAGE GENERATION CIRCUIT INCLUDING THE SAME

SK hynix Inc., Gyeonggi-...

1. A charge pump circuit comprising:a charge pump unit performing a charge pump operation until an output voltage reaches a target voltage; and
a multi-stage charge sharing unit comprising first to Nth capacitors coupled in parallel between the charge pump unit and a load circuit, wherein the multi-stage charge sharing unit sequentially performs first to Nth charge sharing operations between each of the first to Nth capacitors and the load circuit after the charge pump operation, wherein the first to Nth charge sharing operations are mutually and exclusively performed, and N is a natural number equal to or greater than 2.

US Pat. No. 10,250,128

TYPE III SWITCHING CONVERTER ERROR AMPLIFIER WITH FAST TRANSIENT RESPONSE BEHAVIOR

Dialog Semiconductor (UK)...

1. A transient response circuit for providing a faster transient response time of an electronic device and so that less overshoot or undershoot of an output signal of the electronic device occurs when a large load and/or line transient signal is present at an input and/or output terminal of the electronic device, the transient response circuit comprising:a control loop monitor circuit for monitoring a feedback signal applied to an input terminal of a control stage of the electronic device, and configured for determining a difference between the feedback signal and the reference voltage offset by a first and a second offset voltage and configured for generating transient detection signals indicating that detection of a large load and/or line transient signal has occurred based on the difference between the feedback signal and the reference voltage offset by a first and a second offset voltage; and
an assist circuit in communication with the transient detection circuit for receiving the transient detection signal, and configured for charging or discharging a loop filter capacitor of the control stage for regulating the output signal to decrease overshoot or undershoot upon receipt of the transient detection signal.

US Pat. No. 10,250,127

AC TO DC POWER CONVERTER AND ASSOCIATED ELECTRICAL GRID

THALES, Courbevoie (FR)

1. A power converter of power factor corrector type, comprising a power structure receiving, on a first input, an AC voltage comprising at least one phase and delivering, on a first output, a DC voltage,an output power of said power structure being regulated by a multiplier receiving, as a first input, a current control signal and a signal proportional to an output voltage of the power structure,
wherein said current control signal is generated by a current correction module receiving, as a second input, a signal proportional to a difference between an output current delivered on a second output of the power structure and an output current setpoint signal, and wherein the current correction module generating a predetermined fixed value in an event of an output short circuit operation.

US Pat. No. 10,250,126

METHOD FOR CONTROLLING RESONANT CONVERTER

MEANWELL (GUANGZHOU) ELEC...

1. A method applied in a feedback circuit electrically connected between a load and a resonant converter having a power switch unit, being used for controlling the resonant converter and comprising following steps:(1) using the feedback circuit to monitor a current variation of an output current and a voltage variation of an output voltage of the resonant converter;
(2) determining whether the output voltage is greater than a voltage threshold value of 200 mV as well as the current variation exceeds a first current threshold value of 10 A; if yes, proceeding to step (4); otherwise, proceeding to step (3);
(3) the feedback circuit being configured to generate a first control signal with an operating frequency based on the monitored output voltage and the monitored output current and then outputting the first control signal to the resonant converter; subsequently, proceeding back to the step (1);
(4) the feedback circuit being configured to output a second control signal to the resonant converter, so as to make the resonant converter work at an operating frequency of full load; wherein the operating frequency of full load is 100 KHz.

US Pat. No. 10,250,125

POWER SUPPLY CONTROLLER AND RELATED METHODS

SEMICONDUCTOR COMPONENTS ...

1. A power supply controller, comprising:at least three comparators, each comparator of the at least three comparators comprising an input coupled with a supply voltage of a power supply controller;
a multiplexer coupled to the at least three comparators;
at least two latches coupled with the at least three comparators; and
a restart controller comprising an input coupled with an output of a latch of the at least two latches.

US Pat. No. 10,250,124

POWER CONVERTER FOR CONTROLLING SWITCHING ELEMENTS DURING REGENERATIVE CONTROL OF AN INVERTER

Mitsubishi Electric Corpo...

1. A power conversion device comprising:a smoothing capacitor connected between DC buses and smoothing DC power from a DC power supply;
an inverter circuit including series units including upper switching elements connected to a high potential side of the DC buses and lower switching elements connected to a low potential side of the DC buses, the upper switching elements being connected in series with the lower switching elements, respectively, connection points between the upper switching elements and the lower switching elements being connected to respective phase AC input/output lines, the respective series units being connected in parallel between the DC buses, the inverter circuit converting the DC power to AC power and outputting the AC power; and
a control circuit controlling power running and regeneration of the inverter circuit, wherein
during regenerative control of the inverter circuit, when a path between the DC power supply and the smoothing capacitor is in a disconnection state, the control circuit performs control while switching between first control in which all the upper switching elements are turned on and all the lower switching elements are turned off and second control in which all the lower switching element are turned on and all the upper switching elements are turned off, every predetermined switching period,
wherein
the control circuit holds a plurality of different period lengths for the switching period, and
one period length is selected from the plurality of period lengths in accordance with at least one of a current flowing through each phase AC input/output line, an ambient temperature of the upper switching elements and the lower switching elements, and a condition for cooling the upper switching elements and the lower switching elements, and is used for the switching period.

US Pat. No. 10,250,122

MULTI-PHASE CONTROL FOR PULSE WIDTH MODULATION POWER CONVERTERS

SEMICONDUCTOR COMPONENTS ...

1. A Pulse Width Modulation (PWM) controller for controlling one or more phases, the PWM controller comprising:a phase sequencer circuit to determine a selected phase of the one or more phases;
a common ramp generation circuit to generate a common ramp signal;
one or more Current Sense plus Ramp (CSR) signal generators to respectively generate one or more phase CSR signals according to respective currents of the one or more phases;
a phase activation circuit to determine, using the common ramp signal, to turn on a PWM signal of the selected phase; and
one or more phase deactivation circuits to respectively determine, using the respective phase CSR signals, to turn off respective PWM signals of the one or more phases,
wherein the common ramp generation circuit sets a value of the common ramp signal to a predetermined reset value in response to a PWM signal of the selected phase being turned on, and decreases or increases the value of the common ramp signal at a controlled rate otherwise.

US Pat. No. 10,250,121

CONVERTER AND CONTROL CIRCUIT

Sumitomo Electric Industr...

1. A converter comprising:a preceding-converter having a first switching circuit intermittently outputting current;
a capacitor smoothing the current output from the first switching circuit;
a succeeding-converter having a second switching circuit to which the current smoothed by the capacitor is intermittently input; and
a control circuit controlling switching of the first and second switching circuits so that an end time point of an output period during which current is output from the first switching circuit substantially matches an end time point of an input period during which current is input to the second switching circuit, wherein
the converter converting direct current or alternating current input to the preceding-converter and outputting the converted direct current or alternating current from the succeeding-converter.

US Pat. No. 10,250,120

POWER CONVERSION DEVICES AND CONTROL METHODS THEREFOR

Northeastern University, ...

1. A power conversion device comprising:input circuitry configured to be coupled to a power source or load, the input circuitry comprising at least one switching device or diode;
an output switch bridge configured to be coupled to a load or power source, the output switch bridge comprising at least four controllable switching devices arranged in a bridge configuration to control current output; and
a link stage comprising at least one reactive component configured for alternating current (AC) operation, wherein the input circuitry, output switch bridge and link stage are operative to regulate an input and an output currents and manage power mismatch between the power source and load;
wherein the device is operative in at least three states in a switching cycle, including at least one state to charge the reactive component of the link stage from the power source, at least one state in which power is discharged from the link stage into the load, and a single state in which no power is transferred through the link stage and one or both of a link voltage remains constant and a link current is zero or remains constant.

US Pat. No. 10,250,119

FAST RESPONSE FOR CURRENT DOUBLING DC-DC CONVERTER

SEMICONDUCTOR COMPONENTS ...

1. A current doubling DC-DC converter that comprises:a transformer having a primary and a secondary;
first and second inductors connected together at a first voltage output terminal, the first and second inductors each having a drive terminal connected to a respective terminal of the transformer secondary;
a reserve capacitor connected to a second voltage output terminal, the reserve capacitor having a charge terminal;
a primary switch array that converts an input voltage into forward voltage pulses and reverse voltage pulses on the transformer primary;
a secondary switch array that selectively couples each drive terminal to either the charge terminal or the second voltage output terminal; and
a controller that causes the secondary switch array to couple the drive terminal of the first inductor to the charge terminal during the forward voltage pulses, and to couple the drive terminal of the second inductor to the charge terminal during the reverse voltage pulses,
wherein the controller includes a pulse-width-modulated (PWM) signal generator that generates:
a first PWM signal that:
when asserted, causes the secondary switch array to couple the drive terminal of the first inductor to the charge terminal, and
when de-asserted, causes the secondary switch array to couple the drive terminal of the first inductor to the second voltage output terminal; and
a second PWM signal that:
when asserted, causes the secondary switch array to couple the drive terminal of the second inductor to the charge terminal, and
when de-asserted, causes the secondary switch array to couple the drive terminal of the second inductor to the second voltage output terminal.

US Pat. No. 10,250,118

PWM MODE BOOST SWITCHING REGULATOR WITH PROGRAMMABLE PULSE SKIP MODE

NXP B.V., Eindhoven (NL)...

1. A power supply, comprising:a switch configured to regulate an input voltage;
a current sense transistor configured to sense current through the switch;
a switching control configured to control a switching frequency of the switch; and
a programmable pulse skip circuit coupled to the switching control, wherein the switching control is configured to alter the switching frequency based on a pulse skip control signal received from the programmable pulse skip circuit, wherein the programmable pulse skip circuit produces the pulse skip control signal based on an external control signal inputted to the programmable pulse skip circuit and the sensed current by the current sense transistor and includes a reference voltage selector configured to select one of a plurality of preselected fixed reference voltages based on the external control signal.

US Pat. No. 10,250,117

APPARATUS FOR CONTROLLING CONVERTER

Hyundai Motor Company, S...

1. A converter controlling apparatus including a plurality of switching devices capable of controlling a pulse width modulation (PWM), the converter controlling apparatus comprising:an efficiency determiner configured to variably change a resistance of a gate terminal, wherein a PWM signal for controlling a PWM of the plurality of switching devices is applied to a gate terminal based on an amount of current flowing through the converter, wherein the efficiency determiner comprises:
a load amount determiner configured to:
detect the amount of the current flowing through the converter;
compare the amount of the current flowing through the converter with a preset reference value; and
determine whether an amount of load of the converter is a heavy load or a light load; and
a gate resistance setting unit configured to:
when the amount of the load of the converter determined by the load amount determiner is the heavy load, increase resistance of the gate terminal; and
when the amount of the load of the converter determined by the load amount determiner is the light load, reduce the resistance of the gate terminal.

US Pat. No. 10,250,116

CONTROL CIRCUIT FOR REDUCING POWER LOSS OF LLC RESONANT CONVERTER DURING LIGHT-LOAD OR NO-LOAD OPERATION

MEANWELL (GUANGZHOU) ELEC...

1. A control circuit for use in an LLC resonant converter, wherein the LLC resonant converter at least comprises a resonator unit, a transformer unit and a power switch unit for controlling energy transmission of the resonator unit and the transformer unit; wherein the control circuit comprises:a signal detection unit, comprising:
a current transformer, being electrically connected to the resonator unit by a primary-side winding thereof, used for producing a current sampling signal;
a full wave rectifier, being electrically connected to a secondary-side winding of the current transformer for applying a rectifying process to the current sampling signal; and
a resistor, being electrically connected to the full wave rectifier, used for converting the rectified current sampling signal to a reference voltage signal; and
a controller unit, being electrically connected to the signal detection unit for receiving the reference voltage signal, so as to output at least one switch controlling signal to the power switch;
wherein a level variation of the reference voltage signal is referred by the controller unit, such that the controller unit is configured to properly regulate a duty cycle of the switch controlling signal based on a duty cycle reduction percentage as the LLC resonant converter is under a light-load or a no-load operation;
wherein the duty cycle reduction percentage is a ratio between a light-load duty cycle and a basic duty cycle within a range from 88% to 99%;
wherein the level variation of the reference voltage signal is referred by the controller unit, such that the controller unit is also able to regulate the duty cycle of the switch controlling signal based on a duty cycle increment percentage as the LLC resonant converter is under a normal load operation;
wherein the duty cycle increment percentage is a ratio between the basic duty cycle and the light-load duty cycle within a range from 102% to 112%.

US Pat. No. 10,250,115

INVERTER SWITCHING DEVICES WITH COMMON SOURCE INDUCTANCE LAYOUT TO AVOID SHOOT-THROUGH

FORD GLOBAL TECHNOLOGIES,...

1. A phase leg comprising;an upper transistor having upper gate, collector, and emitter terminals, the upper gate and emitter terminals arranged to create an upper common source inductance;
a lower transistor having lower gate, collector, and emitter terminals, the lower gate and emitter terminals arranged to create a lower common source inductance;
an upper commutation diode coupled across the upper collector and emitter terminals and in parallel with the created upper common source inductance;
a lower diode coupled across the lower collector and emitter terminals and substantially in parallel with the created lower common source inductance; and
a power module substrate carrying a plurality of conductive layers, wherein the conductive layers define a positive rail and a negative rail arranged between first and second mounting regions, wherein the upper transistor and the lower diode are mounted to the substrate in the first mounting region, and wherein the upper transistor and the lower diode are mounted to the substrate in the first mounting region;
wherein the transistors are connected in series between positive and negative bus terminals and have an intermediate junction providing an output of the phase leg, wherein the upper diode has an anode terminal connected to the intermediate junction substantially bypassing the created upper common source inductance; and wherein the lower diode has an anode terminal connected to the negative bus terminal substantially bypassing the created lower common source inductance.

US Pat. No. 10,250,114

VIBRATION MOTOR

AAC TECHNOLOGIES PTE. LTD...

1. A vibration motor, comprising:a fixed member including a housing having a receiving space and a coil received in the receiving space and assembled with the housing, the housing including an upper cover and a base having a wall opposed to the upper cover;
a vibration unit including weight, and a magnet supported by the weight;
an elastic member having one end connecting to the housing and another end connecting to the vibration unit for suspending the vibration unit in the receiving space;
a positioning guiding member including a weight guiding rail formed on the weight, a base guiding rail formed on the wall of the base, and a plurality of rolling members; wherein
a movement rail is formed cooperatively by the weight guiding rail and the base guiding rail, and the plurality of rolling members are received in the movement rail for restricting the vibration unit to move along the movement rail;
the weight guiding rail is a milled structure directly formed on the weight, including at least two first ribs extending toward the wall; the base guiding rail is a stamped structure directly formed on the base, including a main body connecting to the base, and at least two second ribs corresponding to the first ribs; the ribs of the base guiding rail is parallel with, and separated by the rolling members from, the ribs of the weight guiding rail, but the rolling members engage with the first and second ribs of the movement rail, for forming the movement rail, the main body of the base guiding rail is located between the two second ribs and keeps a distance from the base;
the weight includes a first weight and a second weight for sandwiching the magnet therebetween;
the weight guiding rail includes a first weight guiding rail formed on the first weight, the base guiding rail includes a first base guiding rail corresponding to the first weight guiding rail and a second base guiding rail corresponding to the second weight guiding rail.

US Pat. No. 10,250,113

ELECTRIC MOTOR AND MANUFACTURING METHOD FOR ELECTRIC MOTOR

NSK LTD., Tokyo (JP)

1. An electric motor comprising:a rotor having a rotor yoke and a magnet; and
a stator formed by stacking, in a rotation axis direction of the rotor, a plurality of electromagnetic steel sheet layers in each of which a plurality of electromagnetic steel sheets each having two teeth is annularly arranged, wherein
a core of a coil provided in the stator is formed of the teeth stacked in the rotation axis direction,
there are two types of phases for arrangement of a plurality of the electromagnetic steel sheets in the one electromagnetic steel sheet layer,
the stator includes electromagnetic steel sheet layers having the two types of phases,
a cylindrical yoke is provided on an opposite side of the rotor with respect to the stator,
the rotor and the stator are disposed one by one at facing positions sandwiching the yoke,
a plurality of the electromagnetic steel sheets arrayed in a circumferential direction around the rotation axis of the rotor in the electromagnetic steel sheet layers included in each of the two stators is arranged apart from each other, and
a gap between the electromagnetic steel sheets arrayed in the circumferential direction around the rotation axis in one electromagnetic steel sheet layer included in one of the two stators and a gap between the electromagnetic steel sheets arrayed in the circumferential direction around the rotation axis in one electromagnetic steel sheet layer located at the same position as the one electromagnetic steel sheet layer in the rotational axis direction and included in the other stator are not positioned on one straight line orthogonal to the rotation axis of the rotor.

US Pat. No. 10,250,112

TRANSVERSE FLUX MACHINE

EKORAD LTD., Petach Tikv...

1. A transverse flux electrical motor or generator, comprising:a rotor shaft and a stator;
stator based phase half-windings concentric with an axis of said transverse flux electrical motor or generator;
a plurality of core sets, each core set comprised of at least two cores comprised of a plurality of core elements, said plurality of core sets being distributed on a circumference of the stator, each core forming an incomplete magnetic circuit by partially circumscribing one of said stator phase half-windings;
a plurality of magnetic excitation elements in-between of said phase half-windings, each of said plurality of magnetic excitation elements arranged to have alternate polarity relative to an adjacent magnetic excitation element thereof,
wherein, at least one portion of said core elements, which is adjacent to each of said plurality of magnetic excitation elements functions as a magnetic flux distribution switch,
wherein each of said magnetic flux distribution switches is configured such that one of said incomplete magnetic circuits is closed, continuously, periodically, and alternately upon a rotation of said rotor shaft, thereby switching a direct excitation magnetic flux to different directions periodically and alternately around each of said phase half-windings, one after another, thus enabling continuous utilization of all of said plurality of magnetic excitation elements without idle breaks,
wherein, each of said plurality of core sets utilizes a single magnetic excitation element arranged so its polarity is in a largely identical direction with the flow of flux therethrough, and
wherein, when complete, each magnetic circuit contains a single magnetic excitation element.

US Pat. No. 10,250,111

MOTOR TOPOLOGY WITH EXCHANGEABLE COMPONENTS TO FORM DIFFERENT CLASSES OF MOTORS

QM Power, Inc., Kansas C...

1. A manufacturing process comprising:selecting an exchangeable stator component from a stator component group consisting of a stator spacer ring and an axially magnetized stator magnet ring to be a first input with at least two stator rings to manufacture a motor having a motor class, the exchangeable stator component being exchangeable for a different exchangeable stator component from the stator component group to manufacture another motor having a different motor class;
selecting an exchangeable rotor component from a rotor component group consisting of a rotor spacer ring and an axially magnetized rotor magnet ring to be a second input with at least two outer rotor rings to manufacture the motor having the motor class, the exchangeable rotor component being exchangeable for a different exchangeable rotor component from the rotor component group to manufacture another motor having another different motor class; and
manufacturing the motor having the motor class with the at least two stator rings, the at least two rotor rings, the first input, and the second input.

US Pat. No. 10,250,110

FASTENING ASSEMBLY FOR ELECTRIC MACHINE AND RECTIFIER THEREFOR

GE Aviation Systems LLC, ...

1. A method of assembling a rotating rectifier having multiple radially spaced bus bars each having a corresponding fastener to an electrical machine having at least one machine with a stator and a rotor mounted on a rotating shaft, the method comprising:inserting the rotating rectifier into a hollow portion of the rotating shaft;
axially aligning the fasteners with at least one corresponding radial opening in the rotating shaft;
inhibiting an inward radial movement of the fasteners by inserting an inhibiting tool into an interior defined by the multiple radially spaced bus bars; and
at least partially securing the fasteners of each bus bar to a corresponding fastener on at least one of the rotor and rotating shaft while the inhibiting tool resides in the interior.

US Pat. No. 10,250,109

MOLDED MOTOR WITH CONDUCTIVE PLATE TO REDUCE BEARING CORROSION

FUJITSU GENERAL LIMITED, ...

1. A molded motor comprising:a stator including a bottomed cylindrical case molded with a molding resin;
a rotor rotatably disposed on a radially inner side of the stator;
a bearing supporting an output side and a counter-output-side of an output rotary shaft of the rotor;
a conductive bracket including a bearing house housing the bearing and disposed on each of the output side and the counter-output side of the case; and
a metal conductive plate electrically connecting the bracket on the output side and the bracket on the counter-output side, wherein:
the conductive plate includes
a first abutting portion formed on one end, the first abutting portion comprising a front-end portion that is abutted on an outer side of a cylinder portion of the bearing house on the output side or the counter-output side, the front-end portion warping in a direction away from the case,
a second abutting portion formed on the other end and abutted on an inner side of the bracket on the output side or the counter-output side press-fitted on the case, and
a conductive sleeve connecting the first abutting portion and the second abutting portion;
the conductive plate and the case include a holding unit for holding the front-end portion of the first abutting portion in a state in which the front-end portion is bent to be raised toward obliquely upward and is abutted on the outer side of the cylinder portion of the bearing house;
the conductive plate is disposed on an outer surface of the case;
the holding unit includes a first holding portion in the conductive plate and a second holding portion in the case, the first holding portion including a hole in the conductive sleeve, the second holding portion including a protrusion that is a part of the case, the protrusion being positioned away from the bearing house;
the protrusion is inserted in the hole such that the state in which the front-end portion is abutted on the outer side of the cylinder portion of the bearing house is held; and
the first abutting portion has a width smaller than a width of the conductive sleeve.

US Pat. No. 10,250,108

MOTOR DRIVING DEVICE

FANUC CORPORATION, Yaman...

1. A motor driving device, comprising:a printed board;
a plurality of secondary voltage elements mounted on the printed board and configured to be used only with a secondary voltage;
a plurality of primary voltage elements disposed on a surface on a side opposite to a surface of the printed board on which the plurality of secondary voltage elements are mounted, and configured to be used only with a primary voltage that is higher than the secondary voltage; and
a first conductive material extending from an upper portion of the printed board to a command signal input portion of the primary voltage elements, and being configured to transmit command signals from the secondary voltage elements to the primary voltage elements,
wherein a secondary voltage region on the printed board on which the plurality of secondary voltage elements are mounted, and a primary voltage region on the printed board on which the first conductive material is arranged, are separated from each other by a predetermined insulating distance.

US Pat. No. 10,250,107

MAGNETIC-CONTROLLED GENERATOR WITH BUILT-IN CONTROLLER

Chi Hua Fitness Co., Ltd....

1. A magnetic-controlled generator with built-in controller to be applied to training machines, comprising:a shaft fixedly engaging a supporting seat of a training machine;
a transmission element to engage an end of the shaft for receiving a driving force from the training machine;
an outer rotor including a flywheel and a plurality of permanent magnets, wherein the flywheel has an outer rim and an inner rim sharing a common axis to form a first annular space, bounded by the inner rim, and a second annular space, disposed between the inner rim and the outer rim; the flywheel engages the shaft to be driven to rotate by the transmission element; and the plurality of permanent magnets are fixedly arranged within the first annular space along an inner peripheral edge of the inner rim;
an inner stator including a coil holder mounted on the shaft and an armature core assembled along an edge of the coil holder, wherein the inner stator is disposed in the first annular space and an outer edge of the armature core is arranged next to an inner edge of the plurality of permanent magnets; whereby rotation of the outer rotor produces AC currents by the inner stator and the currents are output by an output wire connected to outside of the armature core;
a pair of reluctance devices, each including a stator core having two corresponding indentation spaces to engage a magnetic coil, and an input wire connected to the magnetic coil;
an engaging element fixedly engaged with the coil holder and having the stator cores assembled thereon to position the reluctant devices in diametrically opposed relationship within the second annular space;
a magnetic ring being arranged along an inner peripheral edge of the outer rim of the flywheel and having a gap between an outer edge of the stator cores and an inner edge of the magnetic ring;
responsive to DC currents being input via the input wire of the magnetic coil, the stator cores produce a magnetic field and further create eddy reluctance with the coupled magnetic ring, forming internal reverse resistance against the flywheel;
a control circuit unit built on a side of the engaging element and connected to the output wire of the armature core, an external digital operator, and the input wire of the magnetic coil, said control circuit unit including a self-activated circuit, a AC-DC conversion circuit, a microprocessor, and a DC control circuit to convert AC currents from the armature core to DC currents to supply for the magnetic coil, said digital operator receiving a number of torque value from an operator and said microprocessor producing a controlling value for adjusting the currents input from the DC control circuit to form the reverse resistance against the flywheel; and
a software for calibration, including a plurality of current values, a plurality of torque values, a number of said current values less than a number of said torque values; said torque values divided into groups by different ranges and said groups inducted into different current values, from each group of torque values a median retrieved rendered as and said plurality of current values rendered as x, thereby a first section and a second section divided by different numbers of said current values to employ a quadratic regression equation ym=a1x2?b1x+c for calibration when the medians are inducted within the first section and to employ a linear regression equation ym=a2x?b2 for calibration when the medians are inducted within the second section, a plurality of points retrieved and checked by the equations rendered as calibration points for further torque calibration, and a communication link further connected to the microprocessor for said software saving the medians of the plurality of torque values from the training machine to the microprocessor for the control circuit unit to operate the adjusting process after calibration operation.

US Pat. No. 10,250,106

STATOR AND MOTOR PROVIDED WITH OUTER CYLINDER

FANUC CORPORATION, Yaman...

1. A stator of a motor, comprising:a stator core including a cylindrical back yoke and a tooth projecting radially inside from the back yoke;
a coil wound around the tooth, the coil having a coil end;
an outer cylinder which surrounds the back yoke;
a heat conducting ring located at an axially front side of the coil end, the heat conducting ring having a heat conducting part and a connecting part, the
heat conducting part has an end face that directly contacts an inner circumferential surface of the outer cylinder and directly contacts the coil end of the coil; and
the connecting part extends in the circumferential direction of the outer cylinder so as to be integrally connected to the heat conducting part, the connecting part having an outer circumferential surface directly contacting the inner circumferential surface of the outer cylinder, the connecting part having a radial direction width smaller than that of the heat conducting part.

US Pat. No. 10,250,105

ELECTRIC MACHINE

1. An electric machine, comprising:a stator comprising:
a stator body formed of adjacent plates and having an inner circumference; and,
a plurality of ribs formed by the adjacent plates and protruding radially outward from said stator body;
a plurality of windings arranged on said inner circumference of said stator body;
a rotor concentrically arranged within said stator, said rotor comprising a rotor body having an outer circumference; and,
a plurality of magnets arranged on said outer circumference of said rotor body;
wherein said stator includes a plurality of heat pipes that extend radially outward through said plurality of windings and into said plurality of ribs.

US Pat. No. 10,250,104

CIRCUIT LAYOUT FOR ELECTRIC MACHINE CONTROL ELECTRONICS

BORGWARNER INC., Auburn ...

11. An electronic package adapted for connection to a rear frame member of an electric machine, the electric machine defining a machine central axis, and the electronic package comprising:a support structure having opposite first and second axial ends spaced along a package central axis, the package central axis being coincident with the machine central axis when the electronic package is connected to the rear frame member;
a plurality of power electronics devices connected to the support structure; and
electronic control circuitry carried by the support structure, the electronic control circuitry substantially surrounded by and operatively connected to the power electronics devices, the control circuitry comprising circuit board material having opposing substantially parallel sides, wherein the control circuitry comprises first and second control circuit portions respectively disposed on separate first and second circuit board material portions,
wherein the first and second circuit board material portions substantially coextend with distinct first and second imaginary planes, respectively; and
wherein at least one of the first and second circuit board material portions is oriented with a respective side thereof substantially parallel with the package central axis;
wherein the control circuitry comprises a singular piece of flexible circuit board material having at least one integrated conductor; and
wherein the first and second circuit board material portions are separate first and second pieces of substantially rigid circuit board material, respectively, and
wherein the first and second pieces of substantially rigid circuit board material are individually mounted on the flexible circuit board material piece, and each of the first and second control circuit portions is electrically connected to an integrated conductor of the flexible circuit board material piece.

US Pat. No. 10,250,103

ELECTRICITY GENERATION WITHIN A DOWNHOLE DRILLING MOTOR

Halliburton Energy Servic...

1. An apparatus for generating electricity in a downhole drilling operation, the apparatus comprising:a progressing cavity motor attached to a downhole tool in a wellbore, the motor comprising:
a stator;
a rotor within the stator, wherein the rotor rotates within the stator with passage of one or more drilling fluids through a space between the progressing cavity stator and rotor; the rotor comprising a central bypass bore, the bore comprising an inlet and an outlet, wherein the inlet, the outlet and the bore define a bypass flow path for the one or more drilling fluids to flow through the rotor;
a turbine disposed within the bore;
a shaft coupled to the turbine, wherein as the one or more drilling fluids flow through the bypass flow path, the one or more drilling fluids drive the turbine to rotate the shaft; and
a generator disposed within the bore, wherein rotation of the shaft drives the generator to generate the electricity.

US Pat. No. 10,250,102

REVERSIBLE ELECTRICAL MACHINE FOR AN AIRCRAFT

AIRBUS HELICOPTERS, Mari...

1. A reversible electrical machine comprising:a first electrical device having a first rotor configured to cooperate with a first stator;
a second electrical device including a second rotor configured to cooperate with a second stator;
first disengageable coupling means enabling the first and second rotors to be associated and dissociated in rotation; and
an outlet shaft;
wherein the reversible electrical machine includes second disengageable coupling means that are disengageable under a first predetermined force and that mechanically connect the second rotor to the outlet shaft, the first electrical device being a motor for transmitting mechanical power to the outlet shaft and the second electrical device being a motor-generator for operating in motor mode to transmit additional mechanical power to the outlet shaft, and in generator mode for receiving mechanical power from the outlet shaft.

US Pat. No. 10,250,101

GEAR STABILIZATION TECHNIQUES

Northeastern University, ...

1. A balanced planetary gearbox including an assembly having an input stage and an output stage, the assembly comprising:a first ground, the first ground including a first ground ring and a first ground ring roller;
a second ground, the second ground including a second ground ring and a second ground ring roller, the second ground fixedly connected to the first ground;
a sun gear sub-assembly disposed between the first ground and the second ground, the sun gear sub-assembly including a sun gear and a sun roller, the sun gear including a first plurality of sun gear teeth and a second plurality of sun gear teeth;
a plurality of planet sub-assemblies disposed to interface with and revolve around the sun gear sub-assembly and within the first ground ring and the second ground ring, each planet sub-assembly comprising at least one input planet gear and one output planet gear, each of the input gears including input gear teeth meshing with at least the first plurality of sun gear teeth or the second plurality of sun gear teeth, the at least one input planet gear including an input planet roller, the output gear coupled with at least one input planet gear, the output gear disposed in between the first plurality of sun gear teeth and the second plurality of sun gear teeth, wherein the first and second ring rollers abut their respective input gear rollers and the sun roller; and
an output ring disposed to mesh with the output planet gear of each planet sub-assembly, the output ring gear disposed in between the first ground ring and the second ground ring, such that a combination of the input planet gears from each of the plurality of planet sub-assemblies provides a structural symmetry to the planetary gearbox.

US Pat. No. 10,250,100

ENGINE STARTER SYSTEM

REMY TECHNOLOGIES, L.L.C....

1. A starter comprising:a motor at least partially disposed within a frame and coupled to a pinion, the motor including:
a main field coil capable of producing a main magnetic flux field;
at least one auxiliary flux assembly comprising at least one pole shoe having an inner diametric surface and an outer diametric surface and at least one permanent magnet at least partially positioned within and exposed at an inner diametric surface of the at least one pole shoe, wherein the at least one permanent magnet supplements an excitation of the main magnetic flux field with a supplemental magnetic flux field and wherein the at least one pole shoe forms a low reluctance path for the supplemental magnetic flux field,
the at least one auxiliary flux assembly electrically disconnected from the main field coil and configured and arranged to provide the supplemental magnetic flux field at substantially the same location as the main magnetic flux field; and
an armature electromagnetically coupled with the main magnetic flux field and the supplementary magnetic flux field.

US Pat. No. 10,250,099

ELECTRIC MOTOR AND HEAT SINK APPARATUS USING THE SAME

PANASONIC INTELLECTUAL PR...

1. An electric motor comprising:a frame including a frame housing having a cylindrical shape whose one end is open;
a sleeve having a cylindrical shape and fitted in the frame housing;
a stator attached to an outer peripheral part of the frame housing; and
a rotor including a rotating shaft rotatably and pivotally supported by the sleeve, and a magnet that is disposed opposite to the stator, one end of the rotating shaft being fixed, wherein:
the rotating shaft has a columnar shape;
a first tapered part having a tapered shape whose diameter decreases toward a free end of the rotating shaft and a second tapered part having a tapered shape whose diameter increases toward the free end are formed in a center portion of the rotating shaft;
a length of the first tapered part is longer than 1.4 times of a length of the second tapered part; and
oil is provided to a gap between the rotating shaft and the sleeve.

US Pat. No. 10,250,098

BEARING ARRANGEMENT IN AN AXIAL DRIVE WITH DUAL STATORS AND ONE ROTOR

1. A drive device for modifying hydraulic pressure of a brake, comprising:an inner rotor motor;
a gear transmission arranged to act on a piston of a hydraulic brake pressure modifier and comprising a rotating gear transmission part that is a nut or spindle of a spindle gear, wherein the hydraulic brake pressure modifier is configured to act on the piston of the hydraulic brake pressure modifier;
a motor housing;
a stator with winding and forming a part of the inner rotor motor; and
a rotor with at least one permanent magnet, wherein the rotor is disposed radially inside the stator and forms a part of the inner rotor motor;
wherein the motor housing has a motor housing part extending essentially radially on one side of the stator,
wherein one or more bearings for the rotor and the gear transmission is/are arranged in the motor housing or on the motor housing part or on a component firmly connected to the motor housing part,
wherein the one or more bearings lie radially between the spindle and the stator of the inner rotor motor, and
wherein the one or more bearings is/are arranged on only one side in the motor housing or on the motor housing part, wherein there is no bearing on another side in the motor housing or on the motor housing part, wherein the only one side of the motor housing or motor housing part is defined by a side of a radial plane passing through the rotor, and which is oriented perpendicular to an axis of rotation of the rotating gear transmission part, so that bearing forces are at least substantially absorbed by the only one side of the motor housing or the motor housing part,
wherein the piston of the brake pressure modifier is located on the another side of the motor housing or the radial plane, having no bearings.

US Pat. No. 10,250,097

STATIC PRESSURE SEAL-EQUIPPED MOTOR

Harmonic Drive Systems In...

1. A static pressure seal-equipped motor comprising:a motor case;
an encoder cover attached to a rear end of the motor case;
a partition plate that partitions between a motor chamber formed inside the motor case, and an encoder chamber formed inside the encoder cover;
a rotating motor shaft that penetrates and extends through a case front plate part of the motor case, the partition plate, and a cover back plate part of the encoder cover;
a first static pressure seal portion that seals off a gap between the case front plate part, and a first shaft end portion of the rotating motor shaft protruding to a front from the case front plate part;
a second static pressure seal portion that seals off a gap between the cover back plate part, and a second shaft end portion of the rotating motor shaft protruding to a rear from the cover back plate part;
a partition plate communication path formed in the partition plate for communication between the motor chamber and the encoder chamber; and
an exhaust port formed in the encoder cover for communication between the encoder chamber and an exterior,
the first static pressure seal portion being provided with a first seal ring for forming a first sealing gap with an outer circumferential surface of the first shaft end portion, the first sealing gap defining a first flow path of a sealing gas supplied from the exterior so that the sealing gas diverges through the first sealing gap and flows to the motor chamber and an outside of the motor chamber, and
the second static pressure seal portion being provided with a second seal ring for forming a second sealing gap with an outer circumferential surface of the second shaft end portion, the second sealing gap defining a second flow path of the sealing gas supplied from the exterior so that the sealing gas diverges through the second gap and flows to the encoder chamber and an outside of the encoder chamber.

US Pat. No. 10,250,096

ROTARY ELECTRIC MACHINE HAVING STATOR WITH NEUTRAL BUS-BAR DISPOSED BETWEEN PHASE BUS-BARS

Mitsubishi Electric Corpo...

1. A rotary electric machine comprising:a stator, in which a coil is mounted on a stator core having an annular shape, which includes a coil end which is protruded from an end surface of the stator;
a coil terminal which is protruded; from an end portion of the coil end, in a coil end direction; and
an arc-shaped bus-bar unit which wraps a bus bar and in which a connecting portion configured to connect the coil terminal protrudes in an inner-outer diameter direction of the stator,
wherein a neutral-point bus-bar unit, which includes a neutral-point bus bar, and phase's bus-bar units, which include phase's bus bars respectively connected to the coil of each phase, are laminated and arranged in a protrusion direction of the coil terminal, in the bus-bar unit, and
the neutral-point bus-bar unit is arranged between the phase's bus-bar units.

US Pat. No. 10,250,095

ROTATING ELECTRICAL MACHINE COIL

MEIDENSHA CORPORATION, T...

1. A rotating electrical machine coil in which a main insulation layer is arranged on an outer circumferential side of a plurality of wires, whereinthe main insulation layer is formed by winding a highly thermally conductive mica tape,
a first outer-layer insulation layer made of a heat-shrinkable material is formed on an outer circumferential surface of the main insulation layer at a coil end portion of the coil, and
a second outer-layer insulation layer made of a highly thermally conductive resin material is formed on an outer circumferential surface of the first outer-layer insulation layer at the coil end portion of the coil,
wherein a thermal conductivity of the highly thermally conductive mica tape is 0.4 to 1.2 W/mK,
wherein the highly thermally conductive resin material comprises at least one of (1) liquid crystal polymer or (2) a material in which a resin material is mixed with aluminum oxide.

US Pat. No. 10,250,094

WOUND STATOR OF AN ALTERNATOR AND VEHICLE ALTERNATOR

Victory Industrial Corpor...

1. A wound stator of an alternator, comprising:a stator; and
a group of wires comprising a plurality of abreast wires, wherein the group of wires are embedded in corresponding grooves of the stator sequentially and the abreast wires in the grooves are oriented in a radial direction of the stator,
wherein each of the abreast wires comprises:
a plurality of wave-shaped coils, each of the wave-shaped coils being formed of straight portions and curved portions that alternate with each other, wherein the cross section of the straight portions of each of said wires is generally in elliptical shape, and the straight portions of the group of wires are sequentially embedded in the corresponding grooves of the stator along a direction of the major length of the elliptical shape,
wherein the group of wires for a stator comprises two abreast wires and each of the two abreast wires comprises a first end and a second end, and
wherein the straight portions of the two abreast wires are, starting from the first end, sequentially embedded in a forward direction in the corresponding grooves of the stator so that each of the corresponding grooves of the stator has two layers of wires embedded in a radial direction of the stator, and are then sequentially embedded in the corresponding grooves of the stator in a reverse direction and jut out from one of the corresponding grooves with the second end so that each of the corresponding grooves has four layers of wires embedded in a radial direction of the stator.

US Pat. No. 10,250,093

STATOR FOR ROTARY ELECTRIC MACHINE AND METHOD FOR MANUFACTURING THE SAME

TOYOTA JIDOSHA KABUSHIKI ...

1. A stator for a rotary electric machine, the stator comprising:a stator core having plural slots; and
a stator coil including:
a one-side conductor segment whose first leg and second leg are inserted in first and second slots from one axial end side of the stator core;
a first other-side conductor segment whose third leg is inserted in the first slot from another axial end side of the stator core; and
a second other-side conductor segment whose fourth leg is inserted in the second slot from the other axial end side of the stator core, and
the stator coil configured to be formed such that each of tips of the first leg and the second leg and each of tips of the third leg and the fourth leg that face each other in each of the slots are joined therein and a plurality of the one-side conductor segment and a plurality of the other-side conductor segment are sequentially joined,
wherein the plural slots are formed in a radial direction of the stator core, a plurality of the first leg and a plurality of the third leg are joined in a first joint section in the first slot, a plurality of the second leg and a plurality of the fourth leg are joined in a second joint section in the second slot, and the first joint section and the second joint section that are adjacent to each other in the radial direction in each of the slots are provided at different positions in the axial direction.

US Pat. No. 10,250,092

ROTARY ELECTRIC MACHINE

MITSUBISHI ELECTRIC CORPO...

1. A rotary electric machine comprising an armature that comprises:an annular armature core in which slots are arranged circumferentially; and
an armature winding that is mounted to said armature core,
wherein:
said armature winding is configured by mounting to said armature core at a pitch of one slot in a circumferential direction distributed winding bodies that are each produced by winding a jointless, continuous conductor wire that is coated with insulation for a plurality of turns, said winding bodies being equal in number to a total number of said slots;
said winding bodies are configured such that a first conductor terminal of said conductor wire extends outward at a first axial end of said armature core from a radially innermost position inside said slots, and a second conductor terminal of said conductor wire extends outward at said first axial end of said armature core from a radially outermost position inside said slots; and
respective phase windings of said armature winding are configured by directly joining together said first conductor terminals and by directly joining together said second conductor terminals of said winding bodies that constitute identical phases,
wherein:
a first of said first conductor terminals that are joined together is bent after emerging from said slots so as to extend in a first circumferential direction, a second of said first conductor terminals that are joined together is bent after emerging from said slots so as to extend in a second circumferential direction, and end portions of said first conductor terminals are joined together; and
a first of said second conductor terminals that are joined together is bent after emerging from said slots so as to extend in said second circumferential direction, a second of said second conductor terminals that are joined together is bent after emerging from said slots so as to extend in said first circumferential direction, and end portions of said second conductor terminals are joined together,
wherein:
said first of said first conductor terminals is bent after emerging from said slots so as to extend in said first circumferential direction such that a radial position thereof remains aligned with said radially innermost position inside said slots, and said second of said first conductor terminals is bent after emerging from said slots so as to extend in said second circumferential direction such that a radial position thereof remains aligned with a position that is displaced by a radial width of said conductor wire radially inward from said radially innermost position inside said slots; and
said first of said second conductor terminals is bent after emerging from said slots so as to extend in said second circumferential direction such that a radial position thereof remains aligned with said radially outermost position inside said slots, and said second of said second conductor terminals is bent after emerging from said slots so as to extend in said first circumferential direction such that a radial position thereof remains aligned with a position that is displaced by a radial width of said conductor wire radially outward from said radially outermost position inside said slots.

US Pat. No. 10,250,091

ELECTRIC MACHINE

FEAAM GMBH, Neubiberg (D...

1. An electric machine, comprising:a stator and a rotor which can be moved in relation to the stator and has a pole pair number p, wherein
the stator comprises a first multi-strand winding and at least one second multi-strand winding,
the first multi-strand winding comprises a first and a second sub-winding which are mechanically shifted in relation to each other, and the first and second sub-windings formed by coils,
the second multi-strand winding comprises a first and a second sub-winding which are mechanically shifted in relation to each other, and the first and second sub-windings formed by coils,
in a slot of the stator, a winding number of a coil of the first sub-winding of a multi-strand winding differs from a winding number of a coil of the second sub-winding of said multi-strand winding,
the winding layout for the first and the second sub-winding of at least one of the multi-strand windings are different in that the number of coils of the sub-windings are different in that the number of coils of the sub-windings are different, and
the stator has a number of slots that is twice the number of slots minimally required for a given pole pair number p of the rotor for one of the multi-strand windings.

US Pat. No. 10,250,090

ROTOR, MOTOR, PUMP AND CLEANING APPARATUS

JOHNSON ELECTRIC INTERNAT...

1. A synchronous motor comprising a stator and a permanent magnetic rotor rotatable relative to the stator, wherein the rotor comprises a rotary shaft and two magnets fixed to the rotary shaft, each magnet covers a half of the circumference of the rotary shaft along a circumferential direction and comprises a radial outer surface, a radial inner surface, and two connecting surfaces that connect the radial outer surface and the radial inner surface at opposite ends of the magnet, the radial outer surface has an arc section, the radial inner surfaces of the two magnets cooperatively form an annular surface which defines an inner bore for the rotary shaft to pass therethrough; the stator comprises a stator core and stator windings wound around the stator core the stator core comprises a pair of opposing poles and a yoke connected between the poles, each pole has a pole arc surface facing the rotor, with an air gap formed between the pole arc surface and the rotor, a ratio of a pole arc angle of each magnet to a 180-degree angle is in the range of 0.75 to 0.94, wherein the pole arc angle of each magnet is an angle formed by hypothetical lines connecting two circumferential ends of the arc section of the radial outer section of the magnet and a central axis of the rotary shaft, and wherein the connecting surfaces of one of the magnets contact the connecting surfaces of the other one of the magnets, the radial outer surface of each magnet further includes two plane sections extending respectively from the two circumferential ends of the arc section to the connecting surfaces, two plane sections of the radial outer surfaces of the two magnets at a same circumferential end are coplanar.

US Pat. No. 10,250,089

ROTOR MEMBER, ROTOR AND ELECTRIC MOTOR

FANUC CORPORATION, Yaman...

1. A rotor member which is fixed by press-fitting to a rotary shaft part of an electric motor, the rotor member comprising:a cylindrical sleeve part having a first end at an axial-direction first side thereof, and a second end at an axial-direction second side thereof;
a plurality of magnet segments that are arranged to align in a circumferential direction at an outer side in the radial direction of the sleeve part; and
a cylindrical member that covers the plurality of the magnet segments from an outer side in the radial direction, and sandwiches the plurality of the magnet segments with the sleeve part,
wherein an inner circumferential face of the sleeve part has an inner circumferential tapered face in which the inside diameter of the sleeve part continuously increases at a fixed ratio in a direction from the first end towards the second end, and
wherein an outer circumferential face of the sleeve part has an outer circumferential tapered face in which the outside diameter of the sleeve part continuously decreases at a fixed ratio in a direction from the first end towards the second end, in an axial-direction segment of the sleeve part in which at least the inner circumferential tapered face is present,
wherein, in the rotor member in a state prior to the rotary shaft part being press fit into the sleeve part, an outer circumferential face of a plurality of the magnet segments has an outer circumferential tapered face in which an outside diameter of the rotating shaft part continuously decreases at a fixed ratio in a direction from the first end towards the second end, and a gap is formed between the outer circumferential face of the plurality of the magnet segments and the inner circumferential face of the cylindrical member, and
wherein, in the rotor member in a state after the rotary shaft part is press fit into the sleeve part, a gap is not formed between the outer circumferential face of the plurality of the magnet segments and the inner circumferential face of the cylindrical member, and the outer circumferential face of the plurality of the magnet segments and the inner circumferential face of the cylindrical member make surface contact.

US Pat. No. 10,250,088

FORGED MAGNET WHEEL FOR MOTOR VEHICLE ALTERNATOR PROVIDED WITH PERMANENT INTERPOLAR MAGNETS

Valeo Equipements Electri...

1. A magnet wheel (10, 11) for a rotor (1) of a rotary electrical machine of the Lundell type, said magnet wheel (10, 11) being obtained entirely by forging, the magnet wheel (10, 11) comprising:a central core (107);
a plurality of polar teeth (10g, 11g) distributed regularly on a circumference of said magnet wheel (10, 11), said polar teeth (10g, 11g) extending substantially parallel to a central axis (X) of said magnet wheel (10, 11) and comprising grooves for accommodation of a magnet (100) and magnet lips (101); and
an annular part forming a plate (109), and extending between said central core (107) and tooth bases of said polar teeth (10g, 11g), said tooth bases comprising a plurality of reservoirs (105);
each of said reservoirs (105) being a depression in one of said tooth bases extending radially outwardly from said annular part, each said reservoir (105) providing space for material upset during a stamping operation.

US Pat. No. 10,250,087

HOMOPOLAR COMPOUND-TYPE ASYNCHRONOUS MOTOR

Francecol Technology, Sa...

1. A rotating electrical machine including at least one stator and at least one rotor having magnetic flux return parts arranged in an air gap between the rotor and the stator, the stator being formed of the following elements:at least one pair of fixed electromagnetic armatures arranged axially in an axial direction z and substantially centered on a z axis, one or the other of said fixed electromagnetic armatures receiving at least one armature coil generating a substantially alternating magnetic flux in an air gap;
a magnetic shim that connects the armatures and in which the magnetic flux circulates in the axial direction z between the armatures substantially between all the facing magnetic poles of each of the armatures in the axial direction z, the magnetic shim being placed in contact with the armatures on their annular face opposite the air gap; and
a straight or twisted annular induction coil disposed between the air gap and the magnetic shim.

US Pat. No. 10,250,086

ELECTROMAGNETIC GENERATOR TRANSFORMER

Prototus, Ltd., San Pedr...

1. An electromagnetic generating transformer, comprising:at least two flux assemblies with a first flux assembly of the at least two flux assemblies having one or more first magnetic field source and a first coil magnetically coupled with the first magnetic field source, the first magnetic field source being fixed relative to the first coil, and with a second flux assembly of the at least two flux assemblies having one or more second magnetic field source and a second coil magnetically coupled with the second magnetic field source, the second magnetic field source being fixed relative to the second coil, the first flux assembly and the second flux assembly being magnetically isolated from one another, and the first magnetic field source and the second magnetic field source having a positive pole and a negative pole and a magnetic field passing in a path between the positive pole and the negative pole;
a plurality of shunts; and
a motive source operably coupled with the shunt and configured to move the shunt through a path into primary positions a first distance away from the respective first and second flux assembly and secondary positions a second distance away from the respective first and second flux assembly, wherein a strength of the magnetic field passing between the positive pole and the negative pole varies when the shunt is moved between the primary position and the secondary position, wherein a first number and size of the shunts is coordinated with a second number and arrangement of the at least two flux assemblies to minimize or balance cogging or start up torque.

US Pat. No. 10,250,085

MAGNET MATERIAL, PERMANENT MAGNET, ROTARY ELECTRICAL MACHINE, AND VEHICLE

KABUSHIKI KAISHA TOSHIBA,...

1. A magnetic material expressed by a composition formula:(R1-xYx)aMbTcAd
where R is at least one element selected from the group consisting of rare-earth elements, T is at least one element selected from the group consisting of Ti, V, Nb, Ta, Mo, and W, M is Fe or Fe and Co, A is at least one element selected from the group consisting of N, C, B, H, and P, x is a number satisfying 0.01?x?0.8, a is a number satisfying 4?a?20 atomic percent, b is a number satisfying b=100?a?c?d atomic percent, c is a number satisfying 0 the magnetic material comprising:
a main phase consisting of a ThMn12 type crystal phase,
wherein 30 atomic percent or more of the element M in the composition formula is Fe.

US Pat. No. 10,250,084

PREDICTIVE PHASE TRACKING IN WIRELESS POWER DELIVERY ENVIRONMENTS

Ossia Inc., Bellevue, WA...

1. A predictive phase estimation apparatus comprising:a transceiver module configured to receive a plurality of beaconing signals from a wireless client during a beacon cycle, the wireless client moving from a first position to a second position;
a phase compensation module configured to store the received plurality of beaconing signals;
a phase predictor module coupled to the transceiver module and configured to calculate predictive phases based on the received plurality of beaconing signals and based on beaconing signals received from the wireless client prior to the beacon cycle;
a signal converter coupled to the transceiver module and configured to:
form transmission signals based on the predictive phases; and
supply the transmission signals to the transceiver module; and
wherein the transceiver module is further configured to transmit the transmission signals for delivery of wireless power to the wireless client.

US Pat. No. 10,250,083

SYSTEM AND METHOD FOR COMMUNICATION IN WIRELESS POWER SUPPLY SYSTEMS

PHILIPS IP VENTURES B.V.,...

1. A wireless power supply for transferring power to at least one remote device, said wireless power supply comprising:a wireless power transmitter for transferring power to the at least one remote device, said wireless power transmitter configured to form an inductive power link between said wireless power supply and the at least one remote device;
a communication circuit coupled to said wireless power transmitter, said communication circuit configured to transmit and receive information from the at least one remote device via said inductive power link, wherein said information transmitted to the at least one remote device provides first timing information to the at least one remote device indicative of one or more time slots available to the at least one remote device for communication with said communication circuit;
wherein in response to receiving communication, via said inductive power link, from the at least one remote device in at least one of said one or more time slots, said communication circuit is configured to assign the at least one time slot as occupied by the at least one remote device; and
wherein said information transmitted to the at least one remote device subsequent to said assignment includes second timing information indicative of the at least one time slot being occupied and indicative of one or more time slots as available for communication with said communication circuit;
wherein based on assignment of the at least one time slot as occupied by the at least one remote device, the communication circuit is configured to identify further communications received via said inductive power link in said at least one time slot as being transmitted from the at least one remote device.

US Pat. No. 10,250,082

WIRELESS POWER TRANSMISSION SYSTEM CAPABLE OF CONTINUING POWER TRANSMISSION WHILE SUPPRESSING HEATUP OF FOREIGN OBJECTS

PANASONIC INTELLECTUAL PR...

1. A control circuit of a wireless power transmitting apparatus in a wireless power transmission system for transmitting high-frequency power from the wireless power transmitting apparatus comprising a power transmitting antenna to a power receiving antenna,wherein the power transmitting antenna includes a first resonant circuit including a power transmitting coil, wherein the power receiving antenna includes a second resonant circuit including a power receiving coil,
wherein, when the power transmitting antenna and the power receiving antenna are electromagnetically coupled to each other, the power transmitting antenna and the power receiving antenna have an odd-mode resonance frequency corresponding to an odd-mode resonant condition, and an even-mode resonance frequency corresponding to an even-mode resonant condition, and the even-mode resonance frequency is higher than the odd-mode resonance frequency,
wherein the wireless power transmitting apparatus further comprises a power transmitting circuit configured to generate, from input power, high-frequency power at a variable frequency, and
supply the high-frequency power to the power transmitting antenna, under control of the control circuit of the wireless power transmitting apparatus, and wherein the control circuit of the wireless power transmitting apparatus sets the frequency of the high-frequency power generated by the power transmitting circuit to one of the odd-mode resonance frequency and the even-mode resonance frequency and
wherein the control circuit of the wireless power transmitting apparatus repeatedly alternates a first time interval and a second time interval, the first time interval has a first continuous operating time during which the frequency of the high-frequency power generated by the power transmitting circuit is set to the odd-mode resonance frequency, and the second time interval has a second continuous operating time during which the frequency of the high-frequency power generated by the power transmitting circuit is set to the even-mode resonance frequency.

US Pat. No. 10,250,080

DETECTOR, POWER TRANSMITTER, POWER RECEIVER, POWER FEED SYSTEM, AND DETECTION METHOD

Sony Corporation, Tokyo ...

11. A power transmission device, comprising:a resonance circuit including a coil; and
detection circuitry configured to:
send a signal to an external object,
receive a response to the signal,
determine whether communication with the external object is possible, based on whether the response to the signal is received,
determine, in respective ones a first case where communication with the external object is possible and in a second case where nothing is present in the vicinity of the resonance circuit, a Q-value of the resonance circuit, or a degree of variation of the Q-value of the resonance circuit, the Q-value being based on a voltage or an impedance,
determine whether a foreign object is present in a vicinity of the coil, based on the determination of the Q-value or degree of variation of the Q-value.

US Pat. No. 10,250,079

METHOD AND APPARATUS FOR WIRELESSLY TRANSMITTING POWER AND POWER TRANSMISSION INFORMATION

SAMSUNG ELECTRONICS CO., ...

1. A method of operating a wireless power transmission apparatus, the method comprising:receiving, from a wireless power reception apparatus, information on a battery, wherein the wireless power reception apparatus comprises a battery charging case comprising a battery charger;
determining, by the wireless power transmission apparatus, whether a battery is inserted in the battery charging case based on the received information on the battery;
transmitting a communication power and a charging power to the wireless power reception apparatus, in response to the battery being inserted in the battery charging case; and
transmitting the communication power to the wireless power reception apparatus, in response to the battery not being inserted in the battery charging case.

US Pat. No. 10,250,078

WIRELESS POWER TRANSFER TO MULTIPLE RECEIVER DEVICES ACROSS A VARIABLE-SIZED AREA

1. A method for wireless power transfer, comprising:adapting a variable form factor transmitter into a first adapted form factor based on a first wireless power transfer area, wherein the variable form factor transmitter in the first adapted form factor comprises a first characteristic frequency;
transmitting, from a radio frequency (RF) power source and based at least in part on the first characteristic frequency, RF power across the first wireless power transfer area via a near electromagnetic field of the variable form factor transmitter;
further adapting, by a user and subsequent to adapting the variable form factor transmitter into the first adapted form factor, the variable form factor transmitter into a second adapted form factor based on a second wireless power transfer area, wherein the variable form factor transmitter in the second adapted form factor comprises a second characteristic frequency that is substantially the same as the first characteristic frequency; and
further transmitting, from the RF power source and based at least in part on the second characteristic frequency, the RF power across the second wireless power transfer area via the near electromagnetic field of the variable form factor transmitter.

US Pat. No. 10,250,077

SYSTEM FOR TRANSMITTING ULTRASONIC SHORT-RANGE WIRELESS POWER AND METHOD OF CHARGING ULTRASONIC WIRELESS POWER

1. An ultrasonic short-range wireless power transmission system comprising:an ultrasonic transmission transducer configured to transmit power,
wherein the ultrasonic transmission transducer comprises:
a converter configured to convert power received from an external power source;
a controller configured to control power of a modulator and power of an amplifier;
a communication unit configured to communicate with an external reception transducer;
a sensor configured to sense ultrasonic waves transferred from an ultrasonic wave emission region;
the modulator electrically connected to the controller and configured to generate a signal for ultrasonic short-range wireless power transmission; and
the amplifier configured to amplify a modulation signal generated by the modulator and convert the modulation signal into power; and
one or more transmission modules configured to receive the power from the amplifier and convert an electrical reception signal into ultrasonic waves.

US Pat. No. 10,250,076

WIRELESS POWER TRANSMITTER

Hong Kong Applied Science...

1. A wireless power transmitter that supplies power to a load, comprising:an inverter that converts a direct current (DC) signal at an input port of the inverter to an alternating current (AC) signal at an output port of the inverter;
a first phase detector that detects a first phase of an output voltage at the output port of the inverter;
a second phase detector that detects a second phase of an output current at the output port of the inverter;
a phase difference counter that counts a phase difference between the first phase of the output voltage and the second phase of the output current;
a controller that receives the phase difference from the phase difference counter and generates a control signal that changes an output impedance of the inverter in response to changes of a varying impedance of the load that is coupled with the output port of the inverter; and
an impedance tuning circuit that receives the control signal from the controller and tunes an imaginary part of the output impedance of the inverter to zero in order to maximize a power transfer efficiency from the wireless power transmitter to the load.

US Pat. No. 10,250,075

POWER RECEIVING APPARATUS CAPABLE OF CONTACTLESS FEEDING AND CONTACT FEEDING, METHOD OF CONTROLLING POWER RECEIVING APPARATUS, AND RECORDING MEDIUM

Canon Kabushiki Kaisha, ...

1. A power receiving apparatus comprising:one or more processors; and
one or more memories storing instructions which, when executed by the one or more processors, cause the power receiving apparatus to perform operations comprising:
receiving power by a contact power receiving operation with use of a wired transfer path via a connecting terminal;
receiving power by a contactless power receiving operation with use of a wireless transfer path via contactless coupling with a power supply apparatus; and
determining whether or not power is receivable by the contact power receiving operation and the contactless power receiving operation to control charging of a rechargeable battery by the contact power receiving operation and the contactless power receiving operation, wherein
in a case where power is receivable by both the contactless power receiving operation and the contact power receiving operation, performing control such that the rechargeable battery is allowed to be charged with power received by the contact power receiving operation, and communication with the power supply apparatus is allowed via the contactless coupling with the power supply apparatus.

US Pat. No. 10,250,074

POWER SUPPLY SYSTEM

ABLIC INC., Chiba (JP)

1. A power supply system comprising:a power supply device and a power reception device, the power supply system supplying power from the power supply device to the power reception device,
wherein the power supply device includes a power supply coil, and
wherein the power reception device includes:
a resonance circuit having a power reception coil fed with the power from the power supply coil;
a resonance capacitor that resonates with the power reception coil;
a switching element that changes an electrical connection state of the resonance capacitor to control a resonance state of the resonance circuit; and
a rectifying circuit that rectifies and smooths an AC output voltage generated in the resonance circuit to obtain DC power, and a load supplied with the DC power obtained from the rectifying circuit,
wherein the switching element is controlled by a resonance control circuit including a reference power supply and a comparator connected to the switching element, the comparator controlling the switching element depending upon a divided voltage from the resonance circuit and a reference voltage from the reference power supply,
such that when the resonance circuit is in the resonance state, the switching element is in an ON state and a peak voltage value of a voltage generated in the power reception coil is set higher than a prescribed voltage value, and
wherein when the resonance circuit is in a non-resonance state, the switching element is in an OFF state and the peak voltage value of the voltage generated in the power reception coil is set lower than the prescribed voltage value.

US Pat. No. 10,250,073

SYSTEM AND METHODS OF CENTRALLY MANAGING A WIRELESS POWER OUTLET FOR POWERING ELECTRICAL DEVICES

POWERMAT TECHNOLOGIES LTD...

1. A wireless power providing system configured to transfer wireless power to at least one electrical device associated with a wireless power receiver, the system comprising:at least one venue having at least one outlet that is operable to transfer power to the device via the receiver;
at least one homing-beacon, each at least one homing-beacon being coupled with one associated outlet, wherein the at least one homing-beacon is operable to provide location based services of the at least one outlet and at least one venue with which it is associated;
at least one management server operable to manage wireless power transfer from the at least one outlet to the at least one device; and
a software application installed in the device configured to communicate between the device and components selected from a group consisting of the at least one management server, the at least one homing-beacon, the at least one outlet, and any combination thereof,
wherein the at least one management server utilizes the communication between the device and the components to manage wireless power transfer of the at least one outlet of the at least one venue.

US Pat. No. 10,250,072

WIRELESS POWER TRANSFER SYSTEM

The University of Hong Ko...

1. A wireless power transmitter comprising:at least two loops;
separate drivers, each driving a respective one of the loops and providing a respective alternating current to the respective loop, thereby to transmit wireless power for receipt by at least one wireless power receiver; and
a controller for coordinated current control of the drivers such that a magnetic field vector is generated by the respective alternating currents and is controllable to point in one or more of any direction in two-dimensional or three-dimensional space thereby transmitting wireless power in one or more predetermined directions in two-dimensional or three-dimensional space.

US Pat. No. 10,250,071

WIRELESS POWER SUPPLY COIL

NISSAN MOTOR CO., LTD., ...

1. A wireless power supply coil being at least one of a power-transmission-side coil or a power-reception-side coil configured to wirelessly transmit or receive power, the wireless power supply coil comprising:a conductive wire wound annularly; and
a magnetic body arranged inside the conductive wire, wherein
the magnetic body is split along a coil-axis intersecting direction into a plurality of split magnetic bodies, the coil-axis intersecting direction intersecting a coil axis direction of the coil, the conductive wire being wound around the magnetic body,
a plurality of clearances are provided along the coil-axis intersecting direction, each clearance extending along the coil axis direction between respective split magnetic bodies, and
among the plurality of clearances, a clearance on an outer side in the coil-axis intersecting direction is smaller than a clearance at a center in the coil-axis intersecting direction.

US Pat. No. 10,250,070

LINE POWER CONTROL METHOD AND SYSTEM FOR UNIFIED POWER FLOW CONTROLLER

NR Electric Co., Ltd., N...

1. A line power control method for a unified power flow controller, comprising:generating, by means of an outer loop line power control, a valve side current reference value; generating, by means of an inner loop valve side current control, a converter output voltage reference value, according to the valve side current reference value; and outputting, by means of a converter valve control according to the voltage reference value, a corresponding voltage to control line power, wherein
the generating, by means of outer loop line power control, a valve side current reference value specifically refers to that: calculating a line current instruction by means of the outer loop line power control according to an input power instruction and a measured line alternating voltage, and summing the calculated line current instruction and an output value that is obtained by performing a proportional integral operation on a difference between a line power instruction and measured line power, to obtain an outer loop valve side current reference value; and
the generating, by means of inner loop valve side current control, a converter output voltage reference value specifically refers to that: calculating the converter output voltage reference value by means of the inner valve side current control according to the valve side current reference value that is input, a measured valve side alternating current, and a measured valve side alternating voltage.

US Pat. No. 10,250,069

ELECTRICAL POWER SUBSYSTEMS AND METHODS FOR CONTROLLING SAME

GENERAL ELECTRIC COMPANY,...

1. A method for controlling an electrical power subsystem, the electrical power subsystem comprising a power converter electrically coupled to a generator having a generator rotor and a generator stator, the electrical power subsystem defining a stator power path and a converter power path for providing power to the power grid, the converter power path comprising a partial power transformer, the stator power path bypassing the partial power transformer, the electrical power subsystem further comprising a low voltage distribution panel electrically coupled to the converter power path, the method comprising:determining an auxiliary voltage error value based on a measured voltage of the low voltage distribution panel;
receiving an active current command; and
calculating a switching pattern for a line-side converter of the power converter based on the auxiliary voltage error value and the active current command, wherein a current level produced by the line-side converter controls a voltage to the low voltage distribution panel.

US Pat. No. 10,250,068

SOLAR POWERED RECHARGEABLE DEVICE FOR USE WITH AN ELECTRONIC DEVICE AND METHOD OF USE THEREOF

1. A mobile solar powered charging device for charging an electronic device using solar radiation, the mobile solar powered charging device comprising:a solar radiation collection panel, wherein the solar radiation collection panel is foldable such that when a first sector of the panel is folded, the first sector faces a second sector of the panel;
a charge controller electrically and physically coupled directly to the solar radiation collection panel, the charge controller regulating a flow of current from the solar radiation collection panel, wherein the charge controller is included with the solar radiation collection panel such that folding the solar radiation collection panel results in a movement of the charge controller and the solar radiation collection panel as a single unit;
wherein the single unit is a user carryable mobile unit for charging a portable electronic device.

US Pat. No. 10,250,067

METHOD FOR PERFORMING WIRELESS CHARGING CONTROL OF AN ELECTRONIC DEVICE WITH AID OF RANDOM PHASE-DELAY PACKET, AND ASSOCIATED APPARATUS

MediaTek Inc., Hsin-Chu ...

1. An apparatus for wirelessly charging a plurality of electronic devices, the apparatus comprising:a power output transmitter for wirelessly transferring wireless power to the plurality of electronic devices; and
circuitry configured to:
receive wireless charging reports from respective electronic devices of the plurality of electronic devices, the wireless charging reports comprising charging status information based on wireless power received by the respective electronic devices; and
in response to receiving at least one of the wireless charging reports, triggering associated wireless charging control operation,
wherein when the circuitry detects that data collision exists between two or more of the wireless charging reports in a packet detection window, the circuitry is configured to shorten a duration of the packet detection window and receive a next wireless charging report by detecting the next wireless charging report in a subsequent packet detection window.

US Pat. No. 10,250,066

WIRELESS CHARGING AUTOCLAVABLE BATTERIES INSIDE A STERILIZABLE TRAY

Greatbatch Ltd., Clarenc...

1. A wireless electrical charging system, comprising:a) a closed container configured to house at least one electrical energy storage device, wherein the closed container comprises a connection port that is electrically connectable to an electrical energy storage device housed therein, and wherein the closed container is configured to withstand being subjected to an autoclave sterilization process without removing the electrical energy storage device from being housed therein; and
b) an adapter comprising:
i) an adapter housing having an adapter electrical plug end, the adapter electrical plug end being electrically connectable to the connection port of the closed container; and
ii) an electrical energy capture circuit supported by the adapter housing, the electrical energy capture circuit comprising an electrical energy capture coil that is configured to receive wirelessly transmitted electrical power from an electrical energy transmitting circuit by magnetic induction coupling,
iii) wherein, with the adapter electrical plug end connected to the connection port of the closed container, the electrical energy capture circuit is configured to receive wirelessly transmitted electrical power from an electrical energy transmitting circuit to charge the electrical energy storage device.

US Pat. No. 10,250,065

WIRELESS CHARGING CIRCUIT AND CHARGING BOARD THEREOF

DEXIN ELECTRONIC LTD., D...

1. A wireless charging circuit coupled to an oscillation unit configured to generate a differential signal, said wireless charging circuit comprising:a balun unit coupled to said oscillation unit;
a higher-order filter unit coupled to said balun unit; and
a differential unit coupled to said higher-order filter unit and a transmission coil;
wherein said oscillation unit transmits said differential signal to said balun unit, said balun unit converts said differential signal into a converted signal to be transmitted to said higher-order filter unit, said higher-order filter unit filters said converted signal to output a filtered signal to said differential unit, and said differential unit converts said filtered signal into a differential output signal to be outputted by said transmission coil; and
wherein said balun is a center-tapped transformer having a primary side couple to said oscillation unit and a secondary side coupled to said higher-order filter unit, wherein a center tap on said primary side of said center-tapped transformer is couple to a first inductor and a first capacitor, said first inductor being coupled to a voltage source and said first capacitor.

US Pat. No. 10,250,064

ELECTRONIC DEVICE WITH BATTERY HAVING CONDUCTIVE COIL FOR RECEIVING EXTERNAL POWER AND INDUCING POWER VIA A MOVABLE MEMBER OF THE DEVICE

Samsung Electronics Co., ...

1. An electronic device comprising:a housing having a first surface and a second surface;
a display exposed through the first surface of the housing;
a conductive coil disposed inside the housing and forming a portion of the second surface of the housing;
a movable member operatively connected to at least a portion of the housing and including one or more magnets that generate a magnetic field that passes through the conductive coil;
a first charging circuit electrically connected to the conductive coil for wirelessly receiving power from an external device using the conductive coil and supplying the received power to a battery of the electronic device; and
a second charging circuit electrically connected to the conductive coil for supplying, to the battery of the electronic device, power that is induced in the conductive coil based on movement of the movable member.

US Pat. No. 10,250,063

WIRELESS CHARGING DEVICE AND SYSTEM FOR WEARABLE DEVICE

SAMSUNG SDI CO., LTD., Y...

1. A wireless charging device, comprising:a plurality of antennas to wirelessly receive power through electromagnetic induction, the antennas located at different positions of an electronic device and oriented in different directions;
a plurality of AC/DC converters connected to respective ones of the antennas, the AC/DC converters to convert AC signals from the antennas to DC signals; and
a controller to measure intensities of the converted signals from the AC/DC converters, compare the intensities, and select one of the antennas having a greater intensity for charging a battery,
wherein the antennas are at different positions along a single curved surface of the electronic device.

US Pat. No. 10,250,062

ENERGY HARVESTING TIMER

HTC Corporation, Taoyuan...

1. An energy harvesting timer, comprising:a wireless charging module configured to process a radio frequency existing in environment;
a wireless communication module connected to the wireless charging module, wherein the wireless charging module provides energy to the wireless communication module;
a plurality of hands selectively coupled to the wireless charging module or the wireless communication module, wherein while at least one of the hands is coupled to the wireless communication module to be a transmitting antenna to perform a wireless communication function, the other hands are still coupled to the wireless charging module to be receiving antennas to perform wireless charging function, wherein a length of the receiving antenna is substantially the length of the hand; and
a driving module electrically connected to the wireless charging module and at least one of the hands, wherein the driving module receives energy from the wireless charging module to actuate at least one of the hands.

US Pat. No. 10,250,061

SYSTEM FOR CHARGING ELECTRICALLY DRIVE VEHICLES WITH A SINGLE LINE FOR TRANSMITTING ELECTRIC CURRENT FROM A SOURCE TO A CHARGING STATION

1. A system for charging electrically driven vehicles, comprisinga source of electrical current selected from the group consisting of three-phase current and one-phase current;
first converting means for converting the electric current received from the source into a converted electric current;
a single electric current transmission line transmitting the converted electric current;
second converting means for converting the converted electric current received through the single electric current transmission line into an electric current selected from the group consisting of three-phase electric current, one phase electric current and direct current;
a plurality of charging stations connected with the second converting means for receiving from the latter at least one of the three-phase electric current, one phase electric current, and direct current, and provided with charging means for charging electrically driven vehicles with the at least one of the currents received from the second converting means.

US Pat. No. 10,250,059

CHARGING CIRCUIT FOR BATTERY-POWERED DEVICE

MICROSOFT TECHNOLOGY LICE...

1. A charging circuit, comprising:a power node electrically connectable to a power supply unit;
a battery node electrically connectable to a battery;
a device node electrically connected to a device load;
a reversible buck-boost converter operatively intermediate the power node and the battery node;
a first switch operatively intermediate the power node and the device node;
a second switch operatively intermediate the battery node and the device node, such that electrical current from the battery node does not flow to the device node without passing through the reversible buck-boost converter when the second switch is turned off; and
logic operatively connected to the first switch, the second switch, and the reversible buck-boost converter, the logic configured to:
based on first conditions, turn on the first switch, turn off the second switch, and operate the reversible buck-boost converter in a forward buck mode;
based on second conditions, turn on the first switch, turn off the second switch, and operate the reversible buck-boost converter in a reverse boost mode;
based on third conditions, turn on the first switch, turn off the second switch, and operate the reversible buck-boost converter in a forward boost mode;
based on fourth conditions, turn on the first switch, turn off the second switch, and operate the reversible buck-boost converter in a reverse buck mode; and
based on fifth conditions, turn off the first switch, turn on the second switch, and turn off the reversible buck-boost converter.

US Pat. No. 10,250,058

CHARGE MANAGEMENT SYSTEM

Raytheon Company, Waltha...

1. A method of operating a charge management system for distributing power from a power source to a load, the charge management system including a power distribution bus circuit operably connected to the power source and the load, and an intermediate energy storage circuit operably connected to the power distribution bus circuit, the method comprising:(i) operably connecting the power source to the load;
(ii) charging at least one energy storage capacitor in the intermediate energy storage circuit;
(iii) determining load current demand at the load, and based upon a determination that the load demands current that meets or exceeds a predetermined level, activating a discharge switch to operably connect the at least one energy storage capacitor in the intermediate energy storage circuit to at least one power bus capacitor in the power distribution bus circuit, thereby discharging at least some energy stored in the at least one energy storage capacitor and at least some energy stored in the at least one power bus capacitor to the load;
(iv) deactivating the discharge switch to operably disconnect the at least one energy storage capacitor from the at least one power bus capacitor; and
(v) repeating steps (ii) through (iv).

US Pat. No. 10,250,056

MULTI-FUNCTION EXTERNAL ATTACHMENT AND SAFETY CIRCUIT FOR A PORTABLE POWER CHARGER

Halo International SEZC L...

1. A portable jump-start kit configured to jump start a 12 V car battery comprising:(1) a portable power bank comprising:
a first housing having a rechargeable battery internally stored therein;
a first power connection port operatively connected to the rechargeable battery and being capable of providing a 5 V power charge therefrom; and
a second power connection port operatively connected to the rechargeable battery and being capable of providing 12 V DC power charge therefrom;
(2) a control unit independent of the portable power bank and connectable therewith via a power input charging cable adapted for engagement with the second power connection port of the power bank to connect the control unit with the power bank, said control unit comprising:
a second housing;
a power output charging cable means connected to the second housing and having positive and negative jumper cable clips on the end thereof adapted for connection to a 12 V car battery for jump starting said battery; and
a control button disposed on the second housing for controlling the supply of the 12 V DC power charge received from the power bank via the power input charging cable to the power output charging cable means; and
(3) a safety circuit housed within either of the first and second housings, said safety circuit being in operative communication with the control button and comprising:
a jump start relay operatively connecting the 12 V DC power charge received from the portable power bank to the positive and negative jumper cable clips of the control unit via the power output charging cable means;
a microprocessor; and
a voltage input analyzer operatively connected with the microprocessor to enable or disable the jump start relay.

US Pat. No. 10,250,055

METHOD AND APPARATUS FOR ESTIMATING STATE OF BATTERY

Samsung Electronics Co., ...

1. A battery control apparatus comprising:a switching unit configured to charge a second battery module from a first battery module, wherein the first and the second battery modules are selected from a plurality of battery modules;
a sensor configured to sense, during the charging of the second battery module from the first battery module, state information of either one or both of the first battery module and the second battery module; and
a controller configured to:
control the switching unit and the sensor, and
estimate a status of a battery unit comprising the battery modules based on the sensed state information of either one or both of the first battery module and the second battery module.

US Pat. No. 10,250,054

ENERGY STORAGE SYSTEM AND METHOD FOR INCREASING THE EFFICIENCY OF AN ENERGY STORAGE SYSTEM

1. An energy storage system comprising:an energy store comprising a plurality of flow batteries each of which are connected to a common pair of electrolytes;
an AC/DC-voltage converter configured to be connected to a power grid;
an intermediate circuit connected to a DC-side of the AC/DC-voltage converter;
a first DC/DC-voltage converter connected to the intermediate circuit and connected to at least a first one of the flow batteries;
a second DC/DC-voltage converter connected to the intermediate circuit and connected to at least a second one of the flow batteries; and
a controller connected to the AC/DC-voltage converter, the first DC/DC-voltage converter, and the second DC/DC-voltage converter, wherein the controller is configured to:
simultaneously control a power flow direction of the first DC/DC-voltage converter and a power flow direction of the second DC/DC-voltage converter such that the power flow direction of the first DC/DC-voltage converter is in an opposite direction of the power flow direction of the second DC/DC-voltage converter, and
charge and discharge the flow batteries.

US Pat. No. 10,250,052

CHARGE RATE OPTIMIZATION FOR ENHANCED BATTERY CYCLE LIFE

QUALCOMM Incorporated, S...

1. A method of battery charging by an apparatus, comprising:determining a level of a charge current to be used during a charging mode for charging a battery based on a user preference;
determining a number of rest periods to be used during the charging mode based on the user preference, wherein during the rest periods, the apparatus is configured to perform at least one of setting the charge current to zero or discharging the battery; and
charging the battery with the determined level of the charge current and the determined number of rest periods;
wherein, when the determined level is a low level of the charge current, the charge current has one or more charge periods with a continuous current and has one or more rest periods, and
wherein, when the determined level is a high level of the charge current, the number of the rest periods is determined to be zero.

US Pat. No. 10,250,051

ELECTRONIC DEVICE DOCKING STATION

1. An electronic device docking station comprising:a connector comprising:
a connector head having a neck, a face, a first recess configured to interface with a releasable pivot mechanism, and a pivot surface;
a connector plug extending from the face of the connector head, the plug being configured to connect to an electronic device;
a flexible cable extending from the neck the connector head;
a base comprising:
a second recess configured to interface with the releasable pivot mechanism and thereby releasably secure the connector head to the base;
a fulcrum surface configured to contact the pivot surface.

US Pat. No. 10,250,050

ELECTRIC POWER CHARGER WITH EDGE OUTLET

E-filliate, Inc., Rancho...

8. A wall charger, comprising in combination:a pair of electrically conductive prongs extending from a base wall;
a face wall spaced from said base wall;
four side walls extending between said base wall and said face wall with said side walls perpendicular to said base wall and with lateral edges between adjacent said side walls;
a power outlet located at one of said lateral edges, said power outlet configured to route power to a portable electronic device; and
wherein said power outlet is oriented extending diagonally relative to side walls adjacent to said lateral edge in which said power outlet is located.

US Pat. No. 10,250,049

CHARGING DEVICE FOR REMOVABLE INPUT MODULES

Microsoft Technology Lice...

1. A charging device, comprising:a charging mechanism including:
a power input interface configured to receive power from an external power source; and
a power output interface configured to provide power to an input module for controlling a computing device; and
a body portion comprising an attachment portion defined on the body and shaped to receive at least a portion of the input module to form a single composite device separate from the computing device.

US Pat. No. 10,250,048

CHARGING PROTECTION METHOD AND APPARATUS

Huawei Technologies Co., ...

8. A charging protection apparatus, comprising a temperature sensor, a micro Universal Serial Bus (USB) interface, a memory configured to store instructions, and a processor coupled to the memory, wherein the processor is configured to execute the instructions to:detect whether a voltage on a positive data (D+) pin, a negative data (D?) pin, or an identity (ID) pin of the micro USB interface falls beyond a preset voltage range;
detect whether a current on a power bus (VBUS) pin of the micro USB interface is less than a preset current threshold;
obtain a temperature measured by the temperature sensor;
detect, according to the obtained temperature, whether a temperature rise of the micro USB interface is greater than a preset temperature rise threshold; and
disconnect a charging circuit of a charger when at least one of the following conditions is met:
the voltage on the D+ pin, the D? pin, or the ID pin falls beyond the preset voltage range;
the current on the VBUS pin is less than the preset current threshold; or
the temperature rise of the micro USB interface is greater than the preset temperature rise threshold.

US Pat. No. 10,250,047

BATTERY DISCONNECT UNIT

LSIS CO., LTD., Anyang-s...

1. A battery disconnect unit comprising:a first main relay electrically connected between a first pole of a battery and an inverter;
a second main relay electrically connected between a second pole of the battery and the inverter;
a pre-charge relay connected to the second main relay in parallel;
a self-operating switch connected between the first pole of the battery and the second main relay, and configured to autonomously open a circuit providing electric power from the battery to the second main relay and to interrupt the supply of the electric power from the battery without an additional controlling circuit, when an ambient temperature reaches or exceeds a temperature threshold, or when an over-current occurs; and
a fuse disposed between the battery and the inverter, and configured to melt when the over-current occurs on a circuit inside the battery disconnect unit,
wherein the self-operating switch is configured to:
autonomously open the circuit when the fuse is not disconnected despite the over-current applied thereto; and
protect the fuse by opening the circuit before the fuse melts when the over-current less than an operating current of the fuse occurs.

US Pat. No. 10,250,046

ELECTROMAGNETIC INTERFERENCE BLOCKING SYSTEM

Dialog Semiconductor, Inc...

1. An adiabatically-switched electromagnetic interference protection circuit comprising:a first charge storage element and a second charge storage element, the first and second charge storage elements being provided between an input for receiving a rectified input voltage and an output for connecting to a switching regulator;
wherein the protection circuit is selectively operable between a first mode in which the first charge storage element is coupled to the input and de-coupled from the output; a second mode in which the second charge storage element is coupled to the input and de-coupled from the output; and a third mode in which the first charge storage element and the second charge storage element are each de-coupled from both the input and the output and
a controller adapted to output a control signal to switch the protection circuit between the first mode and the second mode via the third mode; wherein the control signal is adapted to maintain the protection circuit in the third mode for a delay-time.

US Pat. No. 10,250,045

SYSTEM AND METHOD FOR BATTERY PACK

GBatteries Energy Canada ...

1. A system, comprising:a battery pack comprising a plurality of series-connected battery groups, each battery group, of the plurality of series-connected battery groups, comprising a plurality of parallel-connected switched battery units, and a plurality of battery switches, each switched battery unit of the plurality of parallel-connected switched battery units comprising one or more series-connected battery cells, connected to a corresponding battery switch of the plurality of battery switches; and
a controller configured to generate a plurality of pulsed switching signals to control the plurality of battery switches for charging the battery pack, each pulsed switching signal corresponding to one of the plurality of battery switches,
wherein:
each pulsed switching signal comprises a series of pulses, each pulse having ON time and OFF time, which are dynamically determined based on one or more characteristics of the battery unit associated with the corresponding battery switch, wherein the one or more characteristics are measured during the ON time of the pulse, and wherein the dynamically determined ON time and OFF time of the pulses comprised in the pulsed switching signal optimize charging of the battery unit associated with the corresponding battery switch, and
one or more battery switches in each battery group are in a CLOSED state to provide a path for an uninterrupted flow of charging current through the plurality of series-connected battery groups of the battery pack at all times during charging of the battery pack.

US Pat. No. 10,250,044

ENERGY STORAGE APPARATUS FOR A MOTOR VEHICLE AND METHOD FOR OPERATING THE ENERGY STORAGE APPARATUS

Bayerische Motoren Werke ...

1. An energy storage apparatus for an onboard power supply system of a motor vehicle, comprising:a first electrical energy store, which is characterized by a first voltage characteristic that defines a quiescent voltage of the first electrical energy store on the basis of its relative state of charge;
a second electrical energy store, which is connectable in parallel with the first electrical energy store via a controllable switching element and is characterized by a second voltage characteristic that defines a quiescent voltage of the second electrical energy store on the basis of its relative state of charge,
wherein a first voltage value range covered by the first voltage characteristic, and a second voltage value range covered by the second voltage characteristic, partially overlap;
a device for determining the state of charge of the first energy store and/or of the second energy store, the device being configured to:
determine the state of charge either by a quiescent voltage measuring device for determining the state of charge on the basis of a quiescent voltage or by a state of charge determination device for determining the state of charge by balancing a respective battery current,
open the controllable switching element when: (i) the motor vehicle is in a quiescent-state-like state, and (ii) a quality value expressing a quality of the balancing, which quality value was determined during a previous determination of the state of charge and in parallel with said state of charge, exceeds a predefined threshold value, and
activate the quiescent voltage measuring device for determining the state of charge of at least the first energy store.

US Pat. No. 10,250,043

INITIALIZER-BASED CONTROL OF A MODULE BYPASS SWITCH FOR BALANCING OF BATTERY PACK SYSTEM MODULES

Southwest Electronic Ener...

1. An apparatus, comprising:a microprocessor module configured to be coupled to a plurality of controller modules of a plurality of battery pack system modules through a bus, wherein the microprocessor is configured to perform steps comprising:
determining a first battery pack system module of the plurality of battery pack system modules is out of balance with other battery pack system modules of the plurality of battery pack system modules; and
when the first battery pack system module is determined to be out of balance, issuing commands onto the bus comprising commands for performing steps comprising:
de-activating a charge switch of the first battery pack system module to interrupt charging of a plurality of battery cells of the first battery pack system module, wherein the charge switch comprises a field effect transistor (FET) having a body diode oriented to block charge current to the plurality of battery cells;
de-activating a discharge switch of the first battery pack system module to interrupt discharging of the plurality of battery cells of the first battery pack system module, wherein the discharge switch is de-activated after de-activating the charge switch, wherein the discharge switch comprises a field effect transistor (FET) having a body diode oriented to block discharge current from the plurality of battery cells; and
activating a module bypass switch of the first battery pack system module to allow charging of a second battery pack system module of the plurality of battery pack system modules without charging of the first battery pack system module, wherein the module bypass switch is activated after de-activating the discharge switch.

US Pat. No. 10,250,042

WIND-TURBINE CONVERTER CONTROL FOR MODULAR STRING CONVERTERS

1. A wind turbine converter system arranged to convert variable-frequency electrical power produced by a variable-speed wind turbine into fixed-frequency electrical power to be fed into an electricity grid, wherein operation of the wind turbine is controlled by a wind turbine controller, the wind turbine converter system comprising:a converter comprising a first converter string and a second converter string; and;
a converter controller comprising:
a first converter string controller operated as a master controller, wherein the first converter string controller is configured to:
receive superordinate control commands from the wind turbine controller;
control conversion operation of the first converter string based on the superordinate control commands; and
generate string control commands for a slave controller based on the superordinate control commands; and
a second converter string controller operated as the slave controller, wherein the second converter string controller is configured to:
control conversion operation of the second converter string based on the string control commands.

US Pat. No. 10,250,041

POWER CONTROL SYSTEM, POWER CONTROL DEVICE, AND METHOD FOR CONTROLLING POWER CONTROL SYSTEM

KYOCERA Corporation, Kyo...

1. A power control system comprising:a storage cell;
a power generation device that generates power while a current sensor detects forward power flow; and
a power control device including
a first power converter configured to convert AC power from a commercial power grid to DC power and supply the DC power to the storage cell during an interconnected operation, and
a supply unit configured to supply power generated by the power generation device to the storage cell during an independent operation;
an independent operation switch opened during the interconnected operation and closed during the independent operation to cause output from the first power converter to flow in a direction of the forward power flow through the current sensor; and
an interconnected operation switch that is open during the independent operation to prevent output from the commercial power grid to flow in the direction of the forward power flow through the current sensor,
wherein the first power converter is a single device and is a two-way inverter,
wherein a first input/output unit of the first power converter is connected to the storage cell, and
wherein a second input/output unit of the first power converter is connected to the commercial power grid via the interconnected operation switch and is connected to the current sensor via the independent operation switch.