US Pat. No. 10,218,348

CONTROL CIRCUIT

Mitsubishi Electric Corpo...

1. A control circuit comprising:an inverter circuit comprising a totem-pole configuration comprising a high-side MOSFET and a low-side MOSFET connected to form a totem-pole;
a first gate driver configured to switch the low-side MOSFET;
a second gate driver configured to switch the high-side MOSFET;
a bootstrap circuit configured to supply a voltage to the second gate driver; and
a detection section configured to issue an anomaly signal when a current larger than a predetermined value flows in the inverter circuit,
wherein in response to issuing of the anomaly signal, the first gate driver turns off the low-side MOSFET, and the second gate driver turns off the high-side MOSFET, and
after that, in a state in which a freewheeling current is flowing through a body diode of the low-side MOSFET, the first gate driver turns on the low-side MOSFET to execute protective operation for preventing a bootstrap capacitor of the bootstrap circuit from being overcharged.

US Pat. No. 10,218,347

HIGH FREQUENCY SWITCH

Samsung Electro-Mechanics...

1. A high frequency switch, comprising:a first signal circuit portion configured to transfer a high frequency signal from a first port to a common port;
a second signal circuit portion configured to transfer the high frequency signal from the common port to a second port; and
an electrostatic discharge (ESD) protecting unit comprising a protective transistor positioned between the common port and a ground and a diode element positioned between a control terminal of the protective transistor and the first port.

US Pat. No. 10,218,346

HIGH CURRENT LATERAL GAN TRANSISTORS WITH SCALABLE TOPOLOGY AND GATE DRIVE PHASE EQUALIZATION

GaN Systems Inc., Ottawa...

18. A large area/high current lateral GaN transistor comprising a plurality of transistor islands forming a multi-island transistor, each island comprising a source, drain and gate electrode, and the multi-island transistor being arranged as an array of plurality of sections each section containing a sub-array of a set of said transistor islands; an overlying interconnect structure comprising at least one conductive metallization layer defining a drain bus, a source bus and a gate bus; the source, gate and drain buses extending between sections of the array and interconnecting in parallel the individual transistor islands of each section; andan overlying current redistribution structure, the current redistribution structure comprising a redistribution layer of low inductance metallization defining source conductive tracks formed directly on the source bus and drain conductive tracks formed directly on the drain bus, and a gate pad on the gate bus; the source conductive tracks and the drain conductive tracks being patterned to substantially match the lateral dimensions of the underlying source bus and drain bus.

US Pat. No. 10,218,345

HIGH-SIDE GATE DRIVE CIRCUIT, SEMICONDUCTOR MODULE, AND THREE-PHASE INVERTER SYSTEM

Mitsubishi Electric Corpo...

1. A high-side gate drive circuit for driving a high-side switching element, the high-side gate drive circuit comprising:pulse generating circuits configured to generate a first pulse synchronized with an input signal; and
level shift circuits configured to shift a level of a reference voltage for the first pulse to a power supply voltage of the high-side switching element,
wherein the level shift circuits include MOSFETs to be driven by the first pulse,
the high-side gate drive circuit comprising:
a mask signal generating circuit configured to generate a mask signal that becomes a high level in a period in which source potential of the MOSFETs becomes a high level; and
reshot circuits configured, when the first pulse is input into the level shift circuits during a mask period that is a period in which the mask signal is a high level, to input a second pulse into the level shift circuits after the mask period.

US Pat. No. 10,218,344

VOLTAGE CONVERSION CIRCUIT AND CONTROL CIRCUIT THEREOF

Excelliance MOS Corporati...

1. A control circuit, configured to control a driver switch, wherein two ends of the driver switch respectively receive an input voltage and an output voltage, and the control circuit comprises:a voltage selection circuit, configured to receive the input voltage and the output voltage, and select a smaller voltage value as a selected voltage from the input voltage and the output voltage;
a buffer circuit, coupled to the voltage selection circuit, and configured to receive the selected voltage and provide the selected voltage as a reference voltage; and
a pull-down switch, wherein the pull-down switch is connected in series between a control end of the driver switch and the reference voltage, and a control end of the pull-down switch receives an enable signal, so that the pull-down switch is switched on or switched off based on the enable signal, wherein
the pull-down switch is switched on based on the enable signal, to pull down a voltage at the control end of the driver switch to the reference voltage and switch off the driver switch.

US Pat. No. 10,218,343

DUTY CYCLE CORRECTION SCHEME

SanDisk Technologies LLC,...

1. A circuit comprising:control circuitry configured to determine a corrective direction to change a duty cycle of a sample clock signal to correct for a duty cycle error of the sample clock signal;
delay circuitry configured to delay an input clock signal to generate a plurality of relative delay signals comprising different phases relative to each other;
selection circuitry configured to select a leading phase signal and a lagging phase signal from among the plurality of relative delay signals according to the corrective direction; and
output circuitry configured to generate an output clock signal in response to a combination of the leading phase signal and the lagging phase signal, the output clock signal comprising a duty cycle corresponding to the corrective direction.

US Pat. No. 10,218,342

SYSTEM AND METHOD FOR DUTY CYCLE CORRECTION

Micron Technology, Inc., ...

1. An apparatus comprising:a first path including a first input node configured to receive a first clock signal and a first output node configured to provide a second clock signal, the first path comprising a duty cycle corrector (DCC);
a second path including a second input node configured to receive the first clock signal and a second output node configured to provide a third clock signal, the second path comprising a frequency divider circuit, the frequency divider circuit being configured to divide a frequency of the first dock signal to produce a fourth dock signal that is equal in frequency to the third dock signal; and
a phase detector configured to detect a difference in phase between the second dock signal and the third clock signal and provide a control signal indicative of the difference;
wherein the DCC is configured to correct a duty cycle of the second clock signal responsive, at least in part, to the control signal from the phase detector; and
wherein the second path further comprises a replica circuit, the replica circuit being configured to model a signal propagation delay in the first path.

US Pat. No. 10,218,341

SYSTEMS AND METHODS FOR PHASE SYNCHRONIZATION OF LOCAL OSCILLATOR PATHS IN OSCILLATOR-OPERATED CIRCUITS

Marvell World Trade Ltd.,...

1. A system having phase synchronized local oscillator paths, the system comprising:a first circuit including:
a first counter configured to generate a first counter output signal in response to a first clock signal controlling the first counter;
a first phase-locked loop coupled to the first counter, the first phase-locked loop being configured to receive the first counter output signal as a first synchronization clock for the first phase-locked loop and to generate a first output signal having rising edges aligned according to the first counter output signal;
an oscillator configured to generate an oscillator clock;
a multi-modulus divider configured to divide the oscillator clock by a non-integer value to match a reference frequency;
a first sigma-delta modulator including:
a multiplier configured to generate a multiplier output signal representing a product of a fractional part of a frequency control word and the first counter output signal;
an adder configured to generate a sum of an integer part of the frequency control word and the generated product of the fractional part of the frequency control word and the counter value corresponding to the first counter output signal, send the generated sum as a division ratio to the multi-modulus divider; and
a sampler configured to sample the first counter output signal to match a modulator clock signal controlling the first sigma-delta modulator when a frequency of the first counter output signal and a frequency of the modulator clock signal are different.

US Pat. No. 10,218,340

ADJUSTABLE DELAY CIRCUIT FOR OPTIMIZING TIMING MARGIN

Micron Technology, Inc., ...

1. An apparatus, comprising:a signal line supplied with a signal;
an output circuit; and
a plurality of delay circuits each including an input node, an output node and a same number of transistors between the input node and the output node, and wherein a selected one of the plurality of delay circuits being connected at its input node to the signal line and at its output node to the output circuit with any of the input and output nodes of any one of the rest of the plurality of delay circuits being disconnected from any one of the signal line and the output circuit.

US Pat. No. 10,218,339

VOLTAGE MONITOR WITH A TRMIMMING CIRCUIT AND METHOD THEREFORE

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

1. An integrated circuit device comprising:a substrate;
a voltage monitor circuit formed on the substrate;
a trimming circuit formed on the substrate including:
a successive approximation register circuit having an input coupled to an output of the voltage monitor circuit;
a beta multiplier circuit having:
an input coupled to an output of the successive approximation register circuit,
an output coupled to a first input of the voltage monitor circuit, and
a variable resistance circuit, wherein a resistance value of the variable resistance circuit is controlled by the output of the successive approximation register.

US Pat. No. 10,218,338

APERIODIC CLOCK GENERATION WITH SPUR SUPPRESSION

TEXAS INSTRUMENTS INCORPO...

15. A method for generating an aperiodic clock signal from a periodic input clock signal, comprisingreceiving the periodic input clock signal;
performing, in a first randomizer, first signal randomization on the periodic input clock signal to suppress spurious signal content associated with the input periodic clock signal, and the first randomizer;
generating an intermediate clock signal;
performing, in a second randomizer, second signal randomization to suppress spurious signal content associated with the intermediate clock signal, and the second randomizer; and
generating the aperiodic clock signal having a pre-defined average output-clock frequency that is less than the input-clock frequency.

US Pat. No. 10,218,337

SEMICONDUCTOR DEVICE AND ELECTRONIC APPARATUS

Canon Kabushiki Kaisha, ...

1. A semiconductor device in which a plurality of circuit units is arranged in parallel, each of the plurality of circuit units comprising:a first signal line configured to transmit a first signal which is an analog signal;
a sending unit configured to send a second signal;
a receiving unit configured to receive the second signal; and
a second signal line configured to transmit the second signal from the sending unit to the receiving unit,
wherein
a distance between the first signal line and the second signal line is shorter than pitches at which the plurality of circuit units is arranged,
a sending circuit included in the sending unit outputs the second signal on the basis of an input signal input to the sending circuit,
the input signal is a signal in which a signal level thereof changes from a first signal level to a second signal level, and the second signal is a pulse signal that includes a pulse corresponding to the change of the input signal, and
a width of the pulse is shorter than a duration time of the second signal level of the input signal after the change of the input signal.

US Pat. No. 10,218,336

RING OSCILLATOR OPERATION MANAGEMENT METHOD AND APPARATUS

STMicroelectronics (Rouss...

1. A method for managing operation of a ring oscillator circuit, the method comprising:generating a master supply voltage by a master oscillator circuit, the master supply voltage being associated with a stable oscillation rate of the master oscillator circuit, the master oscillator circuit being supplied with current and being structurally identical to the ring oscillator circuit; and
loading a capacitive circuit with a load voltage originating from the master supply voltage; and
in response to a control signal, supplying the ring oscillator circuit with a current controlled by a voltage delivered by the capacitive circuit, in such a way as to provide a stable oscillation rate for the ring oscillator circuit.

US Pat. No. 10,218,335

DUPLEXER

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

3. A duplexer comprising:a first filter that is connected between a common terminal and a first terminal, and includes a first series resonator and a first parallel resonator;
a second filter that has a passband higher than a passband of the first filter, is connected between the common terminal and a second terminal, and includes a second series resonator and a second parallel resonator;
a first chip on which the first series resonator and the second parallel resonator are located;
a second chip that differs from the first chip, and on which the first parallel resonator and the second series resonator are located, wherein
when a temperature coefficient of an antiresonant frequency of the first series resonator is represented by GA, a temperature coefficient of a resonant frequency of the first parallel resonator is represented by HGA, a temperature coefficient of an antiresonant frequency of the second series resonator is represented by HGB, and a temperature coefficient of a resonant frequency of the second parallel resonator is represented by GB, a magnitude relationship among GA, GB, HGA, and HGB is any one of GB

US Pat. No. 10,218,334

ACOUSTIC WAVE DEVICE

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

1. An acoustic wave device comprising:a substrate;
a plurality of acoustic wave resonators that are formed on an upper surface of the substrate;
a first wiring line that is formed on the upper surface of the substrate and is electrically coupled to at least one of the plurality of acoustic wave resonators; and
one or more second wiring lines that are electrically coupled to the first wiring line and connects regions located on the upper surface of the substrate, at least a part of the one or more second wiring lines being formed immediately above one or more of the plurality of acoustic wave resonators across an air gap,
wherein the one or more second wiring lines are not supported by any other substrate other than the substrate, and
each of the one or more of the plurality of acoustic wave resonators includes a first region overlapping with the one or more second wiring lines in a plan view and a second region not overlapping with the one or more second wiring lines in the plan view.

US Pat. No. 10,218,333

MICROELECTROMECHANICAL RESONATOR

SiTime Corporation, Sant...

1. A microelectromechanical system (MEMS) device comprising:a moveable micromachined member having a piezoelectric insulating layer disposed between first and second electrically conductive layers;
a substrate;
first and second electrical terminals; and
first and second mechanical structures that secure the moveable micromachined member to the substrate and include respective first and second electrical interconnect layers coupled in series, with the first electrically conductive layer of the moveable micromachined member and each other, between the first and second electrical terminals to enable conduction of a first joule-heating current from the first electrical terminal to the second electrical terminal through the first electrically conductive layer of the moveable micromachined member.

US Pat. No. 10,218,332

BROADBAND MATCHING CIRCUIT FOR CAPACITIVE DEVICE

Avago Technologies Intern...

5. A switched power amplifier duplexer (S-PAD) device having a composite broadband frequency range, the S-PAD device comprising:a solid state switch configured to selectively connect a circuit device to one of a plurality of acoustic filters having a corresponding plurality of different frequency bands within the composite broadband frequency range;
a first matching circuit configured to match an impedance of the solid state switch and an impedance of the circuit device, the first matching circuit comprising:
a first series resonance circuit comprising a first inductor and a first capacitor connected between the solid state switch and the circuit device, the first series resonance circuit having a predetermined first resonance frequency within a middle portion of the composite broadband frequency range; and
a second matching circuit configured to match impedances of the solid state switch and one acoustic filter of the plurality of acoustic filters, the second matching circuit comprising:
a second series resonance circuit comprising a second inductor and a second capacitor connected between the solid state switch and the one acoustic filter, the second series resonance circuit having a predetermined second resonance frequency within the middle portion of the composite broadband frequency range;
wherein one of the first matching circuit and the second matching circuit further comprises a first shunt inductor, connected at one end between the solid state switch and one of the first series resonance circuit or the second series resonance circuit, respectively, and connected at an opposite end to reference ground, the first shunt inductor being configured to transform the impedance of the solid state switch to a matching impedance for a matching resonance frequency, the matching resonance frequency being within the middle portion of the composite broadband frequency range, and
wherein each of the first series resonance circuit and the second series resonance circuit is configured to further transform the matching impedance of the solid state switch and the first shunt inductor to a design matching impedance within the composite broadband frequency range.

US Pat. No. 10,218,331

QUADRATURE HYBRID WITH MULTI-LAYER STRUCTURE

Telefonaktiebolaget LM Er...

1. A quadrature hybrid having a first, second, third and fourth ports, the quadrature hybrid comprising: a substrate having a plurality of dielectric layers; a first, second and third capacitors, each capacitor having a first predetermined number of layers each being arranged on a different one of the plurality of dielectric layers; and a first, second, third and fourth inductors, each inductor having a second predetermined number of layers each being arranged on a different one of the plurality of dielectric layers, wherein a first terminal lead of the first inductor and a first terminal lead of the first capacitor are connected to the first port, a first terminal lead of the second inductor and a second terminal lead of the first capacitor are connected to the second port, a first terminal lead of the third inductor and a second terminal lead of the third capacitor are connected to the third port, a first terminal lead of the fourth inductor and a first terminal lead of the third capacitor are connected to the fourth port, a second terminal lead of the first inductor and a second terminal lead of the fourth inductor are connected to a first terminal lead of the second capacitor, and a second terminal lead of the second inductor and a second terminal lead of the third inductor are connected to a second terminal lead of the second capacitor, wherein the first and second terminal leads of each inductor are arranged in a first direction, and the first and second terminal leads of each capacitor are arranged in a second direction orthogonal to the first direction.

US Pat. No. 10,218,330

LAMINATED CHIP DEVICE

INNOCHIPS TECHNOLOGY CO.,...

1. A laminated chip device comprising:a first laminate including a plurality of conductor patterns respectively provided on a plurality of sheets, the conductor patterns being vertically connected to each other through a via formed to penetrate at least a sheet; and
a second laminate disposed over or below the first laminate and including a plurality of internal electrode patterns provided on a plurality of the sheets,
wherein the internal electrode patterns are provided with a non-conductive region in at least a portion of an area corresponding to the via.

US Pat. No. 10,218,329

AUDIO PROCESSING APPARATUS AND METHOD FOR PREVIEWING PARAMETER

Yamaha Corporation, Hama...

1. An audio processing apparatus comprising:a plurality of input channels, each of the input channels including first level adjusters that adjust a level of an input audio signal in accordance with first parameters set separately for individual ones of a plurality of output routes and send resultant level-adjusted audio signals to the individual output routes;
a plurality of bus channels provided in corresponding relation to the plurality of output routes, each of the bus channels being configured to mix the audio signals sent from the plurality of input channels and outputting a resultant mixed audio signal to a main output after processing the mixed audio signal in accordance with a second parameter and;
a preview channel including a plurality of second level adjusters that, in accordance with third parameters set separately for the individual input channels, adjust the audio signals taken out from the plurality of input channels, the preview channel being configured to mix the audio signals having been adjusted in level by the second level adjusters and output a resultant mixed audio signal to a monitor output after processing the mixed audio signal in accordance with a fourth parameter; and
a processor configured to:
in response to a preview instruction given by a user for previewing any one output route of the output routes, set a copy of the first parameter for the one output route of each of the input channels as the third parameter corresponding to the input channel in the preview channel, and set a copy of the second parameter of the bus channel corresponding to the one output route as the fourth parameter of the preview channel; and
in response to an adjustment instruction given by the user, change a value of the third or fourth parameter of the preview channel.

US Pat. No. 10,218,328

AUDIO PROCESSING APPARATUS FOR GENERATING AUDIO SIGNALS FOR MONITORING FROM AUDIO SIGNALS FOR RECORDING AND METHOD OF CONTROLLING SAME

Canon Kabushiki Kaisha, ...

1. An audio processing apparatus comprising a first audio signal processing circuit and a second audio processing circuit,wherein the first audio signal processing circuit generates audio signals for recording by controlling a gain of audio signals from a microphone and outputs the audio signals for recording, and
wherein the second audio signal processing circuit generates audio signals for monitoring by a user independently from the audio signals for recording, by performing a gain control for the audio signals for recording from the first audio signal processing circuit, the second audio signal processing circuit comprising:
a gain setting circuit which sets the gain by detecting amplitude level of the audio signals for recording from the first audio signal processing circuit; and
a gain controller which performs gain controlling based on the gain set by the gain setting circuit, to generate audio signals for monitoring from the audio signal for recording,
wherein the gain setting circuit acquires the gain that the first audio processing circuit sets currently, and determines the gain of the audio signals for monitoring based on the gain currently set in the first audio signal processing circuit and the amplitude level of audio signals for recording from the first audio signal processing circuit.

US Pat. No. 10,218,327

DYNAMIC ENHANCEMENT OF AUDIO (DAE) IN HEADSET SYSTEMS

1. A communications apparatus comprising:a receiving path over which received speech signals traverse in an audio stream, the audio stream including the received speech signals;
a processor including a dynamic audio enhancement device disposed in the receiving path to dynamically enhance the audio stream, the dynamic audio enhancement device configured to modify an amount of volume of the audio stream and an amount of equalization of the audio stream and comprising:
a noise level estimator (“NLE”) configured to generate a signal representing a noise level estimate, the noise level estimator including:
a non-stationary noise detector configured to detect non-stationary noise, and
a stationary noise detector configured to detect stationary noise,
wherein the noise level estimator is configured to generate as the signal a first signal representing a first noise level estimate, the generation of which is based on detection of the non-stationary noise,
wherein the noise level estimator is configured to generate as the signal a second noise level estimate, the generation of which is based on detection of the stationary noise,
wherein the dynamic audio enhancement device is configured to modify the amount of the volume to generate a modified amount of volume based on the signal representing the noise level estimate to form a modified audio stream, and is further configured to modify the amount of the equalization to generate a modified amount of equalization based on the signal representing the noise level estimate to form the modified audio stream,
wherein the modified audio stream is used to generate audio at a loudspeaker.

US Pat. No. 10,218,326

SOURCE FOLLOWER BASED ENVELOPE TRACKING FOR POWER AMPLIFIER BIASING

QUALCOMM Incorporated, S...

1. A power amplifier bias circuit with embedded envelope detection comprising:an envelope detector circuit configured to generate a baseband envelope tracking bias signal to bias a power amplifier, the envelope detector circuit including:
a first source/emitter follower transistor,
a first current driver coupled to an output node of the first source/emitter follower transistor, and
a filter coupled to the output node of the first source/emitter follower transistor; and
a power amplifier bias circuit stage coupled to the envelope detector circuit, the power amplifier bias circuit stage including:
at least one replica transistor of the power amplifier,
an envelope detector replica transistor, and
a replica of the first current driver of the envelope detector circuit.

US Pat. No. 10,218,325

SPATIAL POWER COMBINING MECHANISM (SPCM) FOR THE GENERATION AND AMPLIFICATION OF ELECTROMAGNETIC RADIATION

CALIFORNIA INSTITUTE OF T...

1. An apparatus, comprising:a power divider dividing input power, inputted on the power divider, into a plurality of portions;
a spatial power combiner; and
amplifiers coupled to the power divider and the spatial power combiner, wherein:
each amplifier amplifies one of the portions so as to form an amplified output,
the spatial power combiner coherently combines the amplified outputs into a combined output, and
the spatial power comprises a waveguide dimensioned such that coupling of the amplified outputs into the waveguide generates the combined output comprising a transverse electric, mode having an order higher than a TE10 mode, or a transverse magnetic mode having an order higher than a TM01 mode, or a transverse electromagnetic mode having an order higher than a fundamental mode.

US Pat. No. 10,218,324

DIFFERENTIAL INPUT STAGE WITH WIDE INPUT SIGNAL RANGE AND STABLE TRANSCONDUCTANCE

TEXAS INSTRUMENTS INCORPO...

1. A system, comprising:a differential input transistor pair (DITP) comprising first and second transistors;
a first feedback loop coupled to the first transistor; and
a second feedback loop coupled to the second transistor,
wherein, when a differential voltage applied to the differential input transistor pair is within a first range, the first and second feedback loops control a tail current supplied to the DITP, the tail current at least partially determines a transconductance of the DITP,
wherein, when the differential voltage is within a second range, the transconductance of the DITP is at least partially determined by a first resistor in the first feedback loop or by a second resistor in the second feedback loop.

US Pat. No. 10,218,323

DIFFERENTIAL AMPLIFIER, RECEIVER, AND CIRCUIT

SONY CORPORATION, Tokyo ...

1. A differential amplifier, comprising:a differential amplification circuit; and
an output circuit configured to amplify a differential output from the differential amplification circuit and output the amplified differential output, wherein
the differential amplification circuit includes a first conductive type first differential pair configured to supply output currents according to a positive phase input signal and a reverse phase input signal to the output circuit, a second conductive type second differential pair configured to supply output currents according to a positive phase input signal and a reverse phase input signal to the output circuit, a detector configured to detect an operation state of the first conductive type first differential pair, and an alternative current supplying unit configured to supply an alternative current for the output current of the second conductive type second differential pair which has been turned off to the output circuit.

US Pat. No. 10,218,322

TRANSCONDUCTANCE CURRENT SOURCE

Firecomms Limited, Cork ...

1. A transconductance circuit comprising:an input terminal and an output terminal;
a first current source having a gate connected to said input terminal; and
a second current source, in parallel with said first current source, and having a higher transconductance and a wider dynamic range than the first current source, and
wherein the current sources are configured so that at a low input voltage only the first current source is on, and wherein:
the transconductance circuit comprises a voltage drop circuit providing a lower bias voltage for the second current source than for the first current source,
the voltage drop circuit comprises a source follower and a current source for the source follower, in which the input terminal is linked with the gate of the source follower and the first current source, and
the source follower and the current sources are configured so that a gate-source voltage drop across the source follower ensures that the second current source is off until a point during which the input voltage increases at which the second current source is switched on.

US Pat. No. 10,218,321

THERMALLY RUGGED POWER AMPLIFIERS AND RELATED METHODS

Skyworks Solutions, Inc.,...

1. A method for manufacturing a radio-frequency amplifier, the method comprising:providing or forming a semiconductor substrate; and
forming an array of cascoded devices on the semiconductor substrate to be capable of amplifying a signal, such that the array of cascoded devices includes a plurality of cascoded devices arranged in a first row and a plurality of cascoded devices arranged in a second row, each cascoded device including an input stage and an output stage arranged in a cascode configuration, each of the first and second rows configured such that the output stages are positioned in a staggered orientation, the staggered arrangement of the cascoded devices in the first row offset relative to the staggered arrangement of the cascoded devices in the second row to avoid a direct row-to-row adjacent pair of output stages.

US Pat. No. 10,218,320

VACUUM TUBE AUDIO AMPLIFIER

ECHOWELL ELECTRONICS CO.,...

1. A vacuum tube audio amplifier for providing an output signal based on an input signal, the vacuum tube audio amplifier comprising an audio pre-amplifying portion and an audio output transforming portion, the audio pre-amplifying portion amplifying the input signal and transmitting the input signal to the audio output transforming portion, the audio output transforming portion providing the output signal to a loudspeaker, the vacuum tube audio amplifier being characterized in that:the audio output transforming portion includes an audio output transformer comprising a plurality of stacked E-shaped silicon steel sheets and a plurality of stacked I-shaped silicon steel sheets, wherein the stacked E-shaped silicon steel sheets and the stacked I-shaped silicon steel sheets have a same height which is smaller than or equal to 48 mm, and the audio pre-amplifying portion includes an equalizer for enhanced sound quality, which corrects high-frequency and low-frequency responses of the input signal; wherein the equalizer for enhanced sound quality is a CR-type equalizer and includes an input and an output, wherein the input is connected to a first terminal of a first resistor and a first terminal of a first capacitor; a second terminal of the first resistor is connected to a first terminal of a second capacitor and a first terminal of a third capacitor; a first variable resistor having a first center tap is connected between a second terminal of the first capacitor and a second terminal of the second capacitor, the first center tap being the output a second variable resistor is connected between the second terminal of the second capacitor and a second terminal of the third capacitor, the second variable resistor having a second center tap connected to the second terminal of the second capacitor; the second terminal of the third capacitor is connected to a first terminal of a second resistor; and a second terminal of the second resistor is connected to a signal ground terminal of the audio output transforming portion.

US Pat. No. 10,218,319

RADIO FREQUENCY (RF) AMPLIFIERS WITH VOLTAGE LIMITING USING NON-LINEAR FEEDBACK

Qorvo US, Inc., Greensbo...

8. A Radio Frequency (RF) amplifier, comprising:a plurality of amplification stages connected in series, each stage comprising an amplifier circuit having an input terminal and an output terminal, wherein an input terminal of a subsequent amplification stage is coupled to an output terminal of a prior amplification stage; and
a non-linear feedback circuit having an input terminal and an output terminal, the input terminal of the non-linear feedback circuit being coupled to an output terminal of one of the plurality of amplification stages and the output terminal of the non-linear feedback circuit being coupled to an input terminal of another of the plurality of amplification stages to reduce gain of the amplification circuit of the other amplification stage when an RF voltage swing present at the input terminal of the non-linear feedback circuit exceeds a predefined threshold;
wherein the non-linear feedback circuit reduces the gain of the amplification circuit of the other amplification stage to zero or turns the amplifier circuit of the other amplification stage off.

US Pat. No. 10,218,318

AMPLIFIER WITH DIGITAL LINEARIZATION AND MULTIPLE OUTPUT STAGES

ARRIS Enterprises LLC, S...

1. A node for a CATV distribution system, the node providing a common signal to a plurality of amplifiers, each amplifier amplifying the common signal and delivering the amplified signal to a respective set of one or more subscribers, the node comprising:a first controller that controls pre-distortion of the common signal so as to cancel at least a portion of a distortion caused by each of the plurality of amplifiers; and
a plurality of second controllers, each second controller associated with a respective one of the plurality of amplifiers and modifying at least one of a gain, a frequency response, and a balance of its respective amplifier in response to a feedback signal of the output of the respectively associated one of the plurality of amplifiers;
where at least one of the first controller and the plurality of second controllers store predetermined performance characteristics of the plurality of amplifiers,
where the respective modifications by the respective controllers equalize the distortion among the plurality of amplifiers; and
at least one temperature sensor and where at least one of the first controller and the plurality of second controllers use the output of the at least one temperature sensor and the stored performance characteristics to equalize the distortion among the plurality of amplifiers.

US Pat. No. 10,218,317

HIGH-FREQUENCY AMPLIFIER MODULE

MURATA MANUFACTURING CO.,...

1. A high-frequency amplifier module comprising:a semiconductor substrate including a plurality of high-frequency amplifying transistors, the plurality of high-frequency amplifying transistors amplifying a single high frequency signal; and
an insulating substrate having a front surface and a back surface, the front surface facing the back surface,
wherein the semiconductor substrate includes a plurality of emitter electrodes, each of the plurality of emitter electrodes being coupled to an emitter of a corresponding one of the plurality of high-frequency amplifying transistors, and
wherein the insulating substrate includes
a common ground electrode provided on or near the front surface and joined to the plurality of emitter electrodes,
a ground terminal electrode provided on the back surface, and
at least one thickness-direction coupling electrode coupling the common ground electrode to the ground terminal electrode.

US Pat. No. 10,218,316

FLIP CHIP CIRCUIT

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

1. A flip chip circuit comprising:a semiconductor substrate;
a power amplifier provided on the semiconductor substrate;
a metal pad configured to receive an electrically conductive bump for connecting the flip chip to external circuitry;
wherein at least a portion of the power amplifier is positioned directly between the metal pad and the semiconductor substrate;
a temperature sensor having a temperature sensitive component provided proximal to the power amplifier, and
a controller, configured to control the power amplifier based on a temperature determined by the temperature sensor.

US Pat. No. 10,218,315

DOHERTY AMPLIFIER

Ampleon Netherlands B.V.,...

1. A Doherty amplifier, comprising:a main amplifier and a first peak amplifier, a second peak amplifier, and a third peak amplifier, each amplifier having an input and an output;
a combining network configured for combining signals emerging at outputs of the main amplifier, the first peak amplifier, the second peak amplifier, and the third peak amplifier, wherein the signals are combined at a combining node, and wherein the combining network comprises:
a first impedance inverter arranged in between the output of the main amplifier and the output of the third peak amplifier to combine the output of the main amplifier with the output of the third peak amplifier at the output of the third peak amplifier;
a second impedance inverter arranged in between the output of the first peak amplifier and the output of the second peak amplifier to combine the output of the first peak amplifier with the output of the second peak amplifier at the output of the second peak amplifier;
a first 180 degrees phase shifter arranged in between the output of the second peak amplifier and an intermediate node;
a second 180 degrees phase shifter arranged in between the output of the third peak amplifier and the combining node; and
a third impedance inverter arranged in between the combining node and the intermediate node.

US Pat. No. 10,218,314

COMMON GATE AMPLIFIER CIRCUIT AND POWER AMPLIFIER USING THE SAME

Samsung Electro-Mechanics...

1. A power amplifier comprising:a common source amplifier circuit comprising a terminal connected to a radio frequency (RF) input terminal; and
a common gate amplifier circuit comprising:
a terminal connected to the common source amplifier circuit;
another terminal connected to an RF output terminal;
a Doherty amplifier comprising a main power amplifier and an auxiliary power amplifier connected to the main power amplifier in parallel; and
a load impedance adjusting circuit comprising a terminal connected to a drain terminal of the main power amplifier and another terminal connected to the RF output terminal and a drain terminal of the auxiliary power amplifier.

US Pat. No. 10,218,313

AMPLIFIER ASSEMBLY

Ampleon Netherlands B.V.,...

1. An amplifier arrangement forming a multi-way Doherty amplifier, comprising:a main amplifier, a first peak amplifier, and a second peak amplifier;
a printed circuit board comprising:
(i) an RF input terminal;
(ii) an RF output terminal;
(iii) a dual path package having a first RF input lead, a second RF input lead, a first RF output lead, and a second RF output lead;
(iv) a splitter element for splitting an RF input signal received at the RF input terminal over the first RF input lead and the second RF input lead;
(v) a combiner element for combining signals from the first RF output lead and the second RF output lead;
(vi) an impedance inverter arranged in between (a) one of the first RF output lead and the second RF output lead and (b) the combiner element, and
(vii) a phase delay element configured to provide a phase offset between the RF input signals received by the first RF input lead and the second RF input lead;
wherein the dual path package comprises:
(i) a first semiconductor die comprising an integrated two-way Doherty amplifier that comprises a first amplifier and a second amplifier, wherein the first amplifier and the second amplifier comprise two amplifiers selected from a group consisting of: the first peak amplifier, the second amplifier, and the main amplifier, and
(ii) a second semiconductor die comprising a third amplifier, wherein the third amplifier comprises a remaining amplifier of the group of the first peak amplifier, the second amplifier, and the main amplifier,
wherein the first semiconductor die comprises:
(i) a Doherty splitter element configured to split the RF input signal received from the first RF input lead to provide an input signal to the first amplifier and the second amplifier;
(ii) a phase shifting element arranged in between the Doherty splitter element and the second amplifier;
(iii) a main connection comprising a bond wire connecting an output of the first amplifier to the first RF output lead, and
(iv) a peak connection comprising a bond wire connecting an output of the second amplifier to the first RF output lead;
wherein different physical and electrical lengths of the main connection compared to the peak connection in combination with output parasitic capacitances of the first amplifier and the second amplifier form an impedance inverter arrangement, and
wherein the impedance inverter arrangement introduces an approximately 90° phase shift in the output of the first amplifier, the phase shifting element being adapted to compensate for the approximately 90° phase shift.

US Pat. No. 10,218,312

DYNAMIC VOLUME MANAGEMENT IN AUDIO AMPLIFIERS

QUALCOMM Incorporated, S...

1. A method for overload protection, comprising:detecting an overload condition of an amplifier based on a signal at a node of the amplifier; and
controlling a parameter of an input signal of the amplifier such that the parameter of the input signal is maintained at or below a first threshold until the overload condition is no longer detected, wherein controlling the parameter comprises decreasing the parameter of the input signal while the amplifier is in the overload condition, wherein the parameter of the input signal comprises a voltage level of the input signal or a duty cycle of the input signal.

US Pat. No. 10,218,311

MULTI-MODE POWER AMPLIFIERS WITH PHASE MATCHING

Skyworks Solutions, Inc.,...

1. A multi-mode power amplifier comprising:a first common-base amplifier stage and a first common-emitter amplifier stage in a first amplification path;
a second common-base amplifier stage and a second common-emitter amplifier stage in a second amplification path, the first amplification path and the second amplification path in parallel with one another between a radio frequency input and a radio frequency output of the multi-mode power amplifier;
an input switch and a third common-emitter amplifier stage in a third amplification path that is in parallel with the first amplification path and the second amplification path between the radio frequency input and the radio frequency output; and
a bias circuit configured to operate the multi-mode power amplifier in a selected power mode chosen from a plurality of power modes, the bias circuit configured to selectively activate the first amplification path by controlling a base bias of the first common-base amplifier stage, and to selectively activate the second amplification path by controlling a base bias of the second common-base amplifier stage.

US Pat. No. 10,218,310

POWER AMPLIFIER SYSTEMS WITH DIFFERENTIAL GROUND

Skyworks Solutions, Inc.,...

1. A semiconductor die for a radio frequency communication system, the semiconductor die comprising:a first differential ground network configured to distribute a ground voltage;
a plurality of ground pads configured to provide the ground voltage to the first differential ground network; and
a first differential power amplifier including a first half circuit and a second half circuit that operate differentially to provide amplification, the first half circuit and the second half circuit symmetrically connected to the first differential ground network such that an amount of parasitic of inductance between the first half circuit and the plurality of ground pads is about the same as an amount of parasitic inductance between the second half circuit and the plurality of ground pads.

US Pat. No. 10,218,309

FAST START-UP SINGLE PIN CRYSTAL OSCILLATION APPARATUS AND OPERATION METHOD THEREOF

TRITAN TECHNOLOGY INC., ...

1. A fast start-up single pin crystal oscillation apparatus, comprising: a comparator, an envelope detector, a trigger, a crystal, a finite state machine, an amplifier gain module, a load capacitor module and a bias resistor; wherein:the comparator having a positive input end, a negative input end and an output end, with the positive input end for receiving a detection voltage signal, the negative input end for receiving a reference voltage signal, the comparator comparing the detection voltage signal and the reference voltage signal and the output end outputting a comparison voltage signal;
the envelope detector being coupled to the comparator, for generating the detection voltage signal;
the trigger being coupled to the envelope detector, for generating a clock signal;
the crystal being coupled to the trigger, for generating an oscillation signal with an oscillation frequency;
the finite state machine being coupled to the trigger, the comparator, the load capacitor module, and the amplifier gain module, for receiving the clock signal and the comparison voltage signal and outputting a load capacitor calibration signal and a gain amplifier calibration signal;
the load capacitor module being coupled to the amplifier gain module; and
the bias resistor being coupled in parallel to the crystal and the load capacitor module.

US Pat. No. 10,218,308

PHOTOVOLTAIC JUNCTION BOX PROVIDING QUICK HEAT DISSIPATION

Tyco Electronics Holdings...

1. A photovoltaic junction box, comprising:a box body is a single integrally-molded part having a housing portion defining a receiving chamber and a packaging portion having a first packaging portion located inside the receiving chamber and a second packaging portion located outside the receiving chamber;
a plurality of conductive terminals positioned along the box body; and
at least one diode chip disposed in a portion of the box body outside of the receiving chamber.

US Pat. No. 10,218,307

SOLAR PANEL JUNCTION BOXES HAVING INTEGRATED FUNCTION MODULES

TIGO ENERGY, INC., Los G...

1. A solar panel, comprising:a plurality of photovoltaic cells arranged on a front side of the solar panel;
a junction box having a base fixedly attached to a back side of the solar panel;
wherein the base includes a plurality of contacts connected to sections of the photovoltaic cells; and
wherein each respective contact of the plurality of contacts has a connector receptacle configured to receive a respective connector of a cover of the junction box to form an electronic connection between the respective contact and a circuit in the cover.

US Pat. No. 10,218,306

APPARATUS FOR SECURING A SOLAR PANEL RAIL GUIDE TO A SUPPORT BRACKET

Ironridge, Inc., Hayward...

1. A clamping apparatus for facilitating the completion of an electrical circuit between a solar panel rail guide and a support bracket comprising:a. a bolt comprising;
i. an enlarged end comprising at least one raised portion on a top surface of the enlarged end configured to penetrate a surface treatment layer of a solar panel rail guide;
ii. a shank having a first end and a second end wherein the first end is coupled to the top surface of the enlarged end so that the shank is perpendicular to the enlarged end;
b. a nut further comprising:
i. a head; and
ii. a cylindrical portion extending outward from the head, the cylindrical portion further comprising an outer surface; and
c. a flange rotatably coupled around the outer surface of the cylindrical portion at an end of the cylindrical portion opposite the head, the flange further comprising:
i. a protrusion extending from a front surface of the flange, the front surface further comprising a notch.

US Pat. No. 10,218,305

END CLAMP FOR ATTACHING SOLAR PANELS TO ROOFS

Sunmodo Corporation, Van...

1. A device for mounting a solar panel to a solar panel mounting structure, the solar panel mounting structure mountable to a roof, the solar panel including a rectangular top surface surrounded by a frame with planar frame portions, the planar frame portions include a frame top surface and a frame side surface projecting downward from the frame top surface, comprising:a solar panel end clamp including a clamp leg and a panel clamp;
the clamp leg includes a pivot end and a second end distal to the pivot end;
the panel clamp includes a projected portion that projects from a top outside surface of the panel clamp and is slidably captive with the pivot end, a top inside surface projecting downward with respect the top outside surface, and a side inside surface adjacent to the top inside surface;
a fastener assembly; and
the fastener assembly being securable to the solar panel mounting structure and the clamp leg causing the pivot end to downwardly engage and pivot about the projected portion, the second end to move away from the solar panel, the panel clamp to move downward, the top inside surface to press downward against the frame top surface, the side inside surface to press against the frame side surface, and the solar panel to press against the solar panel mounting structure;
the clamp leg includes a clamp leg top surface, a clamp leg bottom surface opposite the clamp leg top surface, and a slotted aperture therethrough;
the slotted aperture receives the fastener assembly, the slotted aperture includes a first aperture edge and a second aperture edge defining lengthwise extents of the slotted aperture and each extending from the clamp leg top surface to the clamp leg bottom surface; and
with the second end fully extended away from the panel clamp, the second aperture edge is parallel to the side inside surface of the panel clamp and the first aperture edge is oblique with the side inside surface.

US Pat. No. 10,218,304

ROOF MOUNTING SYSTEM

Rillito River Solar, LLC,...

1. A roof mounting system, comprising:flashing defining a first aperture and a protrusion surrounding the first aperture;
a base positionable on the flashing, the base including a second aperture alignable with the first aperture, the base comprising a first portion and a second portion,
wherein the second aperture is defined in the first portion,
wherein the first portion is configured to at least partially surround the protrusion,
wherein the first portion comprises a first plurality of channels,
wherein the second portion comprises a second plurality of channels,
wherein the second portion is configured to be adjustably coupled to the first portion, and
wherein the height of the base is adjustable;
a washer including a third aperture alignable with the first aperture and the second aperture;
a fastener installable through the third aperture, the second aperture and the first aperture.

US Pat. No. 10,218,303

TEMPERATURE CALCULATION SYSTEM FOR A MOTOR USING A THERMAL EQUIVALENT CIRCUIT

Hyundai Motor Company, S...

1. A temperature calculation system for a motor using a thermal equivalent circuit, wherein a yoke is disposed to be fixed onto an inner circumferential surface of a housing of the motor, a coolant chamber in which a coolant flows is formed in a circumferential direction in the housing, and the thermal equivalent circuit, which includes thermal resistance coefficients and temperatures, is used, andan endothermic amount of the coolant flowing in the coolant chamber of the housing is calculated by using an average temperature of the housing and a preset equation,
wherein a temperature of an inner one side of the housing is calculated by using a temperature of an outer circumferential surface of the yoke, a contact thermal resistance between the housing and the yoke, and a conduction resistance of the housing, and by using a temperature of air outside the housing, a convection resistance, and the conduction resistance of the housing,
wherein the average temperature of the housing is calculated by using the temperature of the inner one side of the housing and a compensation resistance,
wherein the preset equation is configured to calculate the endothermic amount by using a mass flow rate of the coolant flowing in the coolant chamber, a specific heat of the coolant, an inflow temperature of the coolant, the average temperature of the housing, a convection coefficient of the coolant, and a contact surface area of the coolant,
wherein power input to the motor is controlled by the endothermic amount,
wherein the endothermic amount of the coolant is converted into a current value, and the current value is used as a factor for controlling power input to the motor,
wherein the thermal equivalent circuit is used to calculate the temperature of the inner one side of the housing and to calculate the average temperature of the housing, and
wherein the preset equation includes
Mass Flow Rate×Specific Heat of Coolant×(Average Temperature of Housing?Inflow Temperature of Coolant)×(exp

US Pat. No. 10,218,302

CONTROLLER AND CONTROL METHOD FOR ELECTRIC MOTOR

HITACHI AUTOMOTIVE SYSTEM...

1. A controller for an electric motor equipped with a plurality of energization systems each composed of an inverter and coils corresponding to a plurality of phases, the controller comprising:a control unit configured to
receive a detection value of a current in each of the energization systems and output a control signal to the respective inverter of each of the energization systems;
execute a first diagnosis to detect an occurrence of an abnormality in each of the energization systems under energization control; and
execute a second diagnosis to detect an occurrence of an abnormality in each of the energization systems not under energization control,
wherein when (i), in the first diagnosis, the control unit detects an abnormality in one of the energization systems and, in the second diagnosis, the control unit detects no abnormality in the one of the energization systems, or (ii) when, in the first diagnosis, the control unit detects an abnormality in one of the energization systems, the control unit is configured to
stop energization control over the one of the energization systems, and, in such a state, following detection of an abnormality in another of the energization systems, restart energization control over the one of the energization systems so as to drive the electric motor;
wherein when, in the second diagnosis, the control unit detects no abnormality in the one of the energization systems and detects an abnormality in another of the energization systems, the control unit restarts energization control over the one of the energization systems where no abnormality is detected in the second diagnosis; and
wherein the control unit is configured to perform the second diagnosis on a part of the energization systems, and the electric motor is supplied with current from another of the energization systems not subject to the second diagnosis.

US Pat. No. 10,218,301

SYSTEM AND METHOD FOR SPEED SENSORLESS MOTOR DRIVES

Mitsubishi Electric Resea...

1. A motor drive for controlling an operation of an induction motor, comprising:a motion controller to provide a reference signal for controlling the operation of the motor, the reference signal includes one or combination of a reference flux of a rotor of the motor and a reference speed of the rotor of the motor;
at least sensor to measure a voltage to the motor and a current through the motor during the operation of the motor;
a memory to store a transformed model relating dynamics of a transformed state of the motor with the measurements of the sensor through parameters of the transformed model, wherein at least some parameters of the transformed model are unknown, wherein the unknown parameters of the transformed model includes the speed of the motor, wherein the transformed state of the motor is a function of an electromagnetic state of the motor defined at least in part by the current through the motor and a flux of the motor, and the parameters of the transformed model, wherein the dynamics of the transformed state is defined by a sum of components, each component is a linear function of the transformed state and at least one of the unknown parameters of the transformed model;
a motor controller to estimate the unknown parameters of the transformed model to produce an estimate of the speed of the motor and an estimate of the flux of the motor based on the measurements of the sensor and the transformed model of the motor, and to produce a reference voltage to track the reference signal based on the estimate of the speed of the motor and the estimate of the flux of the motor; and
an inverter to produce the voltage to the motor based on the reference voltage.

US Pat. No. 10,218,300

TRANSFORMER PHASE PERMUTATION CAUSING MORE UNIFORM TRANSFORMER PHASE AGING AND GENERAL SWITCHING NETWORK SUITABLE FOR SAME

International Business Ma...

1. An apparatus comprising:a first sorting network comprising a first logic circuit configured to sort input signals A, B, C, wherein the sorting is performed so the signals A, B, C are always in a first particular order based on values of the signals A, B, C, and wherein the first logic circuit is further configured to connect the input signals A, B, C to first outputs based on the first particular order;
a second sorting network comprising a second logic circuit configured to sort output signals A0, B0, C0 to second outputs based on values of the output signals A0, B0, C0, wherein the sorting is performed so the second outputs are always in a second particular order based on the values of the output signals A0, B0, C0, and wherein the second logic circuit is further configured to connect the second outputs to the output signals A0, B0, C0, based on the second particular order; and
connection circuitry configured so that first outputs and the second outputs are connected so the first outputs with lower input-signal values in the first particular order are connected to second outputs with higher output-signal values in the second particular order and the first outputs with higher input-signal values in the first particular order are connected to second outputs with lower output-signal values in the second particular order, wherein:
the first logic circuit is configured to sort input transformer phases to age-sorted phases based on historical aging information for the input transformer phases, wherein the sorting is performed so the age-sorted phases are always in a first particular order based on corresponding ages of the input transformer phases, the first logic circuit further configured to connect the transformer input phases to outputs for the age-sorted phases based on the first particular order;
the second logic circuit is configured to sort transformer output phases to load-sorted phases based on output load for each of the transformer output phases, wherein the sorting is performed so the load-sorted phases are always in a second particular order based on the output loads, wherein the second logic circuit is further configured to connect the inputs for the load-sorted phases to the output transformer phases based on the second particular order; and
the connection circuitry is configured so that load-sorted phases and the age-sorted phases are connected so the outputs for the age-sorted phases with lower age are connected to inputs for load-sorted phases with higher output loads and the outputs for the age-sorted phases with higher age are connected to inputs for load-sorted phases with lower output loads.

US Pat. No. 10,218,299

PHASE VOLTAGE DETECTION CIRCUIT AND POWER GENERATION CONTROL DEVICE

Mitsubishi Electric Corpo...

3. A phase voltage detection circuit that detects a phase voltage signal generated by an armature coil of an alternating current (AC) power generator, the phase voltage detection circuit comprising:a peak hold circuit that determines an envelope of the phase voltage signal using an operational amplifier;
a voltage offsetting circuit that shifts an output voltage from the peak hold circuit by a preset offset amount;
a comparator that compares the phase voltage signal with the shifted output voltage from the voltage offsetting circuit, and outputs a phase voltage detection signal,
wherein the peak hold circuit includes:
the operational amplifier including an inverting input terminal to which the phase voltage signal is inputted;
a PMOS transistor having a gate, a source, and a drain that are connected respectively to an output terminal of the operational amplifier, a power supply, and a non-inverting input terminal of the operational amplifier; and
a capacitor and a diode that are connected between the drain of the PMOS transistor and a reference potential.

US Pat. No. 10,218,298

SPILLOVER OF REACTIVE CURRENT TO LINE SIDE CONVERTER

General Electric Company,...

1. A method for controlling a reactive current output of a line side converter used in a power system, the method comprising:(a) obtaining, by one or more control devices, a margin signal determined based at least in part on a stator current margin or a rotor current margin;
(b) determining, by the one or more control devices, a spillover margin based at least in part on the margin signal;
(c) determining, by the one or more control devices, an adjusted spillover margin using a spillover gain, the spillover gain being variable based at least in part on a line converter current setpoint; and
(d) determining, by the one or more control devices, a reactive current command for a line side converter based at least in part on the adjusted spillover margin and an available line current for a steady-state reactive power command, wherein the available line current for a steady-state reactive power command is based on a product of a line current for a steady-state reactive power command adjusted by a gain for the power command;
(e) controlling, by the one or more control devices, the output of reactive current by the line converter based at least in part on the reactive current command.

US Pat. No. 10,218,297

ADJUSTMENT DEVICE HAVING A CONTROL UNIT PROVIDED WITH A BRIDGE CIRCUIT

1. An adjustment device for a closure element on a vehicle, wherein the closure element is adjustable between an open and a closed position via the adjustment device, the adjustment device comprising:a drive motor; and
an electronic control unit for adjusting the closure element, the control unit comprising a bridge circuit in order to supply the drive motor with electric power and control the rotational speed and the direction of rotation of a drive element of the drive motor to be coupled with the closure element, wherein:
the bridge circuit is connected with at least one additional electric load of the vehicle and is formed and provided to control the energization of the at least one additional electric load,
the bridge circuit comprises four transistors via which in particular a rotation of the drive element of the drive motor in the one or in the other direction of rotation can be controlled depending on the actuation,
a single one of the four transistors of the bridge circuit is actuatable for energizing the at least one additional electric load and
only the transistor actuatable for energizing the at least one additional electric load is designed for a larger power consumption than the remaining transistors of the bridge circuit by having a larger current-carrying capacity than the remaining three transistors of the bridge circuit.

US Pat. No. 10,218,296

ROTOR POSITION SENSING SYSTEM FOR THREE PHASE MOTORS AND RELATED METHODS

SEMICONDUCTOR COMPONENTS ...

1. A method for sensing rotor position of a motor, the method comprising:coupling a controller with a three phase permanent magnet synchronous motor (PMSM);
applying, using the controller, a plurality of current vectors to the PMSM, the plurality of current vectors comprising a plurality of dummy current vectors and a plurality of measured current vectors, wherein at least one measured current vector is applied quadrature to a dummy current vector from the plurality of dummy current vectors immediately preceding each measured current vector;
measuring, with a measurement circuit, a plurality of values from a three-phase inverter coupled with the PMSM, each value of the plurality of values corresponding with one of the plurality of measured current vectors, and;
calculating, with one or more logic elements coupled with the PMSM, based on the plurality of values and using one or more position algorithms, a position of a rotor of the PMSM relative to a stator of the PMSM.

US Pat. No. 10,218,295

MOTOR DRIVE CONTROLLER AND METHOD FOR CONTROLLING MOTOR

MINEBEA MITSUMI INC., Na...

1. A motor drive controller that drives a motor without using a sensor device for detecting a position of a rotor, the motor drive controller comprising:a motor drive unit configured to selectively energize drive coils of a plurality of phases of the motor; and
a lock energization control circuit configured to control the motor drive unit to cause a lock current for holding the rotor at a predetermined lock position to flow from the motor drive unit to the drive coils for lock energization duration before rotation of the motor is started,
wherein the lock energization control circuit includes:
a first lock energization unit that controls the motor drive unit such that a magnitude of the lock current becomes a first predetermined value when first predetermined duration has elapsed after the lock energization duration is started; and
a second lock energization unit that controls the motor drive unit such that the magnitude of the lock current becomes a second predetermined value smaller than the first predetermined value when the lock energization duration is terminated after the first predetermined duration has elapsed.

US Pat. No. 10,218,294

BEARING, IN PARTICULAR FOR A MAGNETIC LEVITATION ASSEMBLY

1. Bearing assembly, comprising at leastone first magnet assembly for generating a first quadrupole magnetic field in a first plane, and a second magnet assembly for generating a second quadrupole magnetic field in a second plane, wherein the quadrupole magnetic fields comprise in each case in the planes magnetic field axes arranged at an angle to one another between four poles,
wherein the second plane is arranged parallel to the first plane, and a longitudinal axis at right angles to this is defined by the centres of the quadrupole magnetic fields,and at least one diamagnetic element which is arranged on the longitudinal axis,wherein the first and second magnet assemblies are arranged relative to one another in such a way that the first and the second quadrupole magnetic fields are rotated in relation to one another about the longitudinal axis by an angular amount which is not a whole-number multiple of 90°.

US Pat. No. 10,218,293

PIEZOELECTRIC HARVESTING SYSTEM USING REPULSION FORCE

AMC ENERGY CO., LTD., Se...

1. A piezoelectric harvesting system using a repulsion force, the system comprising:a piezoelectric body including a piezoelectric material;
a fixer having at least one face on which the piezoelectric body is attached;
a supporter configured to support one side of the fixer; and
a repulsion force provider configured to allow the piezoelectric body to generate an electrical energy by providing a repulsion force to the fixer in a process of restoring the fixer to an original state after the fixer is deformed by an external force, wherein the repulsion force provider includes:
a fixing bar provided in a longitudinal direction; and
a moving member adjustably attached to the fixing bar in the longitudinal direction and configured to adjust a strength of the repulsion force applied to the fixer.

US Pat. No. 10,218,292

ACTIVE POSITIONING ENCODER AND OPERATING METHOD THEREFOR

Shanghai Jiaotong Univers...

1. An active position encoder, comprising:a display device, said display device being used for displaying at least a first pattern;
a reading device, said reading device comprising at least a first read head, wherein said first read head is used for reading said first pattern so as to obtain an image signal; and
a signal processing device, said signal processing device executing signal processing on the image signal of said first read head so as to determine a single-dimensional position of said first read head relative to said display device,
wherein said first pattern is a first periodic pattern which changes periodically in a first direction, said first read head reads said first periodic pattern so as to obtain said image signal of a part of the periodic pattern in the first direction, and said signal processing device executes said signal processing on said image signal of said first read head so as to determine a single-dimensional position of said first read head in said first direction relative to said display device.

US Pat. No. 10,218,291

DEVICE FOR GENERATING ELECTRICITY BY FRICTION AND MANUFACTURING METHOD THEREOF

BOE TECHNOLOGY GROUP CO.,...

1. A device for generating electricity by friction, comprising:a first substrate and a second substrate arranged oppositely;
a plurality of elastic columns arranged between the first substrate and the second substrate to support them,
wherein a surface of the first substrate facing the second substrate is provided with a first conductive electrode and an insulating polymeric membrane layer which are stacked along a direction where the first substrate points to the second substrate,
wherein a surface of the second substrate facing the first substrate is provided with a photosensitive resin layer having a concave-convex structure formed by exposure, and
wherein the device for generating electricity by friction further comprises a second conductive electrode covering the concave-convex structure of the photosensitive resin layer to form a surface with a concave-convex structure.

US Pat. No. 10,218,290

INVERTER HAVING AT LEAST ONE INVERTER BRIDGE BETWEEN TWO BUSBARS

SMA Solar Technology AG, ...

1. An inverter comprising a single phase inverter bridge, which is connected on an input side thereof between two DC busbars and on an output side thereof to an AC output,wherein the two DC busbars extend, overlapping one another, in mutually parallel planes,
wherein the single phase inverter bridge comprises a subcircuit between the AC output and each DC busbar, thereby defining two subcircuits,
wherein semiconductor modules, which form the two subcircuits, are arranged next to one another,
wherein the semiconductor modules are connected to the two DC busbars and the AC output via connections, and
wherein a connection element, which leads to the AC output, connects the semiconductor modules of the two subcircuits to one another in a region overlapped by the DC busbars,
wherein each subcircuit provided between the AC output and one of the DC busbars comprises a plurality of semiconductor switches, and
wherein the connection element, which leads to the AC output, begins in the region overlapped by the DC busbars on a side of the DC busbars that faces the semiconductor modules, connects the semiconductor modules of the two subcircuits to one another there, and emerges beneath the DC busbars.

US Pat. No. 10,218,289

STACKED SWITCHED CAPACITOR ENERGY BUFFER CIRCUIT

MASSACHUSETTS INSTITUTE O...

1. A stacked switched capacitor (SSC) energy buffer circuit comprising:two sub-circuits having terminals that are serially coupled during a first operating mode wherein each sub-circuit comprises one or more capacitors, and at least one sub-circuit further comprises a plurality of switches disposed and operable to selectively couple the one or more capacitors of the at least one sub-circuit to: (a) enable dynamic reconfiguration of how the one or more capacitors of the at least one sub-circuit are coupled to the terminals of the at least one sub-circuit; and (b) dynamically reconfigure one or more interconnections among the one or more capacitors within the at least one sub-circuit; wherein the SSC energy buffer circuit provides a total peak energy buffering capability and wherein the peak energy buffered by one of the two sub-circuits is greater than 66% of the total peak energy buffering capability of the SSC energy buffer circuit.

US Pat. No. 10,218,288

POWER CONVERSION CIRCUIT BOARD, AND ELECTRIC COMPRESSOR

MITSUBISHI HEAVY INDUSTRI...

1. A power conversion circuit board on which a power conversion circuit configured to convert direct current to alternating current is mounted,wherein a low voltage circuit to which a low voltage is applied and a high voltage circuit to which a high voltage is applied are separately disposed in different areas on the same board surface, and
in the high voltage circuit, a wiring from a high voltage input terminal to a switching element is formed on the board surface, and a wiring from the switching element to a high voltage output terminal comprises a bus bar which is provided at a predetermined distance from the board surface, and
wherein the wiring from the high voltage input terminal to the switching element and the wiring from the switching element to the high voltage output terminal are disposed to three-dimensionally intersect with each other.

US Pat. No. 10,218,287

POWER CONVERSION DEVICE

DAIKIN INDUSTRIES, LTD., ...

1. A power conversion device that converts a single phase AC voltage being output from a power source into a DC voltage and supplies the DC voltage to a load, the power conversion device, comprising:a single phase full-bridge rectification circuit having a first input terminal and a second input terminal in a pair and a first output terminal and a second output terminal in a pair on an opposite side to the power source with respect to the first input terminal and the second input terminal, the first output terminal and the second output terminal being connected to the load;
a first capacitor and a second capacitor connected to each other in series via a connection point between the first output terminal and the second output terminal to support the DC voltage;
a reactor connected to the power source in series via the single phase full-bridge rectification circuit between both ends of a series connection of the first capacitor and the second capacitor;
a first switch connected between the second input terminal and the connection point and configured to make a transition from a conduction state to a non-conduction state once in a half cycle period, which indicates a period between a pair of adjacent points of time when the AC voltage takes a median value of the AC voltage, when a conversion power of the power conversion device or an input current supplied from the power source is equal to or larger than a first threshold value; and
a second switch that performs a changing from a first state to a second state at least once in the half cycle period when the conversion power or the input current is equal to or larger than the first threshold value, the first state indicating a state where a pathway of current flowing in the reactor does not include the first capacitor and the second capacitor, and the second state indicating a state where the pathway includes at least one of the first capacitor and the second capacitor.

US Pat. No. 10,218,286

MULTIPLE STAGE GATE DRIVE FOR CASCODE CURRENT SENSING

Power Integrations, Inc.,...

1. A power converter, comprising;an energy transfer element coupled between an input of the power converter and an output of the power converter;
a cascode circuit including a low voltage switch coupled to a normally-on switch, wherein the cascode circuit is coupled to the input of the power converter and the energy transfer element; and
a controller coupled to control switching of the cascode circuit to control a transfer of energy from the input of the power converter to the output of the power converter, wherein the controller includes:
a current sense circuit coupled to generate a current limit signal and an overcurrent signal in response to a source signal, a first sense finger signal, and a second sense finger signal coupled to be received from the cascode circuit;
a control circuit coupled to generate a control signal in response to the current limit signal and the overcurrent signal; and
a drive circuit coupled to generate a drive signal with a multiple stage gate drive in response to the control signal to control switching of the low voltage switch, wherein the drive signal provided by a first stage of the multiple stage gate drive is coupled not to fully enhance the low voltage switch, and wherein the drive signal provided by a second stage of the multiple stage gate drive is coupled to fully enhance the low voltage switch.

US Pat. No. 10,218,285

MEDIUM VOLTAGE HYBRID MULTILEVEL CONVERTER AND METHOD FOR CONTROLLING A MEDIUM VOLTAGE HYBRID MULTILEVEL CONVERTER

1. A multilevel converter comprising:a power supply assembly comprising a plurality of phases,
a power cell assembly comprising first power cells and second power cells, the first power cells and second power cells comprising a same topology and a same current rating, and
a transformer operably coupled to the first and second power cells,
wherein the first power cells and the second power cells are configured to supply power to the plurality of phases of the power supply assembly, and
wherein each phase of the plurality of phases comprises at least one first power cell and a second power cell of the power cell assembly,
wherein a voltage rating of the first power cells is higher than a voltage rating of the second power cells, and
wherein the first and second power cells are configured to output a plurality of voltage levels, the first power cells being configured to output more voltage levels than the second power cells,
wherein the transformer is configured to provide isolated voltage to each first and second power cells, wherein the voltage provided to the first and second power cells is provided with phase shifts.

US Pat. No. 10,218,284

DC-DC POWER CONVERTERS INCLUDING A VALLEY SKIPPING MODE AND METHODS OF OPERATING DC-DC POWER CONVERTERS

Astec International Limit...

1. An isolated DC-DC flyback power converter, comprising:an input for receiving a DC input voltage from a voltage source;
an output for supplying a DC output voltage to a load;
a transformer coupled between the input and the output, the transformer having a primary winding and a secondary winding;
a primary field-effect transistor (FET) coupled to selectively conduct current through the primary winding of the transformer, the primary FET including a drain that experiences multiple resonant voltage valleys during each dead-time period of the converter;
a synchronous rectifier coupled to selectively conduct current through the secondary winding of the transformer; and
a control circuit configured to operate the primary FET in a valley skipping mode by turning on the primary FET during a second or subsequent one of the multiple resonant voltage valleys during each dead-time period of the converter, and to allow a negative current in the secondary winding of the transformer before turning off the synchronous rectifier during one or more of the multiple resonant voltage valleys during each dead-time period of the converter.

US Pat. No. 10,218,283

INSULATED SYNCHRONOUS RECTIFICATION DC/DC CONVERTER

ROHM CO., LTD., Kyoto (J...

1. A synchronous rectification controller to be arranged on a secondary side of an insulated synchronous rectification DC/DC converter, and structured to control a synchronous rectification transistor, and, the synchronous rectification controller comprising:a drain pin coupled to a drain of the synchronous rectification transistor;
a ground pin coupled to a source of the synchronous rectification transistor;
a first comparator structured to compare a drain voltage at the drain pin with a first threshold voltage, and structured to assert a set signal when the drain voltage becomes lower than the first threshold voltage;
a second comparator structured to compare the drain voltage with a second threshold voltage, and structured to assert a reset signal when the drain voltage becomes higher than the second threshold voltage;
a forced turn-off circuit coupled to receive the reset signal second comparator, and structured to start a time measurement operation in response to an assertion of the reset signal and to assert a forced turn-off signal so as to forcibly turn off the synchronous rectification transistor after a predetermined time-up period elapses after the assertion of the reset signal;
a flip-flop structured to generate a pulse signal which is switched to an on level in response to an assertion of the set signal, and which is switched to an off level in response to an assertion of the reset signal and an assertion of the forced turn-off signal; and
a third comparator structured to compare the drain voltage with a third threshold voltage configured as a predetermined positive voltage,
wherein the synchronous rectification transistor turns on in response to an assertion of the set signal and turns off in response to the assertion of the reset signal, and wherein, the forced turn-off circuit is coupled to receive an output signal from the third comparator, and when the drain voltage crosses the third threshold voltage, the time measurement operation of the forced turn-off circuit is reset so as to ensure a switching operation of the synchronous rectification transistor during a discontinuous mode.

US Pat. No. 10,218,282

METHOD AND APPARATUS FOR SEQUENCING OUTPUTS IN A MULTI-OUTPUT POWER CONVERTER SYSTEM

Power Integrations, Inc.,...

1. A method of sequencing output voltages in a multi-output switch-mode converter system comprising:providing a power source to a primary of the multi-output switch-mode converter system;
transferring energy from the primary to a highest voltage secondary output so as to increase a voltage of the highest voltage secondary output;
transferring energy from the primary to a lowest voltage secondary output so as to concurrently increase a voltage of the lowest voltage secondary output while regulating the voltage of the highest voltage secondary output, the voltage of the highest voltage secondary output greater than the voltage of the lowest voltage secondary output; and
transferring energy from the primary to the highest voltage secondary output and the lowest voltage secondary output so as to concurrently increase the voltage of the highest voltage secondary output and the voltage of the lowest voltage secondary output.

US Pat. No. 10,218,281

SWITCH MODE POWER SUPPLIES, CONTROL ARRANGEMENTS THEREFOR AND METHODS OF OPERATING THEREOF

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

1. A control arrangement for a switch mode power supply (“SMPS”) operable in a burst mode, comprising:an opto-coupler connected to a proportional-integrating error amplifier configured to transfer, from a secondary side to a primary side of the SMPS through an LED current, a control signal indicative of a time-varying error between a reference signal and a signal indicative of an actual value of an output parameter,
the proportional-integrating error amplifier connected to a ground side of the opto-coupler configured to determine the LED current from the time-varying error; and
a feedback loop including a resistor connected between a ground connection of the proportional-integrating error amplifier and a ground connection configured to reduce a magnitude of the LED current between bursts in the burst mode by modifying a reference signal portion of the time-varying error by using an adder to add a time-dependent offset to the reference signal portion derived in the proportional-integrating error amplifier from the LED current to prevent the LED current from increasing during a normal mode.

US Pat. No. 10,218,280

POWER CONVERTER, SWITCH CONTROL CIRCUIT AND SHORT CIRCUIT DETECTION METHOD FOR CURRENT SENSING RESISTOR OF THE POWER CONVERTER

RICHTEK TECHNOLOGY CORPOR...

1. A power converter, configured to operably convert an input voltage to an output voltage, the power converter comprising:an energy storing/releasing unit;
a power switch, configured to be operably turned ON or OFF according to an operation signal, to control the energy storing/releasing unit, so that the input voltage is converted to the output voltage;
a current sensing resistor having one end coupled to the power switch and having another end coupled to ground; and
a switch control unit, configured to operably generate the operation signal, to control the power switch, wherein the switch control unit is coupled to the current sensing resistor, to receive a current sensing signal, so that the switch control unit samples-and-holds the current sensing signal to generate a first sample-and-hold voltage at a first time point and samples-and-holds the current sensing signal to generate a second sample-and-hold voltage at a second time point, the second time point being after the first time point, wherein the first sample-and-hold voltage indicates a first condition of the current sensing signal at the first time point, and the second sample-and-hold voltage indicates a second condition of the current sensing signal at the second time point;
wherein the switch control unit includes a current sensing resistor short circuit detection circuit, and when it is determined that a short circuit occurs in the current sensing resistor, the current sensing resistor short circuit detection circuit generates a current sensing resistor short circuit signal, wherein the current sensing resistor short circuit detection circuit compares a voltage difference between the first sample-and-hold voltage generated at the first time point and the second sample-and-hold voltage generated at the second time point with a reference voltage to determine whether a short circuit occurs in the current sensing resistor, whereby when the voltage difference between the first sample-and-hold voltage and the second sample-and-hold voltage is smaller than the reference voltage, it is determined that the short circuit occurs in the current sensing resistor.

US Pat. No. 10,218,279

METHODS AND CIRCUITRY FOR OPERATING SWITCHING POWER SUPPLIES BASED ON SWITCHING FREQUENCY COMPARISON

Texas Instruments Incorpo...

1. A controller for a switching power supply, the controller comprising:comparison circuitry operable to compare a switching frequency for the switching power supply to a predetermined switching frequency;
voltage measuring circuitry operable to measure the output voltage of the power supply; and
disabling circuitry operable to disable at least one component in the power supply in response to the switching frequency being less than the predetermined switching frequency and the output voltage being greater than a predetermined output voltage.

US Pat. No. 10,218,278

ISOLATED DC-DC VOLTAGE CONVERTERS

Infineon Technologies Aus...

1. A voltage converter, comprising:a power stage comprising one or more power switches;
a conditioning circuit operable to supply power to a load of the voltage converter;
a transformer configured to couple the power stage to the conditioning circuit; and
a controller operable to:
measure a voltage across a secondary winding of the transformer or a voltage within the conditioning circuit, thereby providing a measured voltage;
estimate magnetic flux within the transformer based upon the measured voltage, thereby providing an estimated magnetic flux; and
generate control signals that drive the one or more power switches based upon the estimated magnetic flux.

US Pat. No. 10,218,277

ADAPTABLE HIGH EFFICIENCY POWER INVERTER SYSTEM

The Boeing Company, Chic...

1. An electric power inverter system, comprising:a controller; and
a plurality of power cells, each including
a rectifier configured to receive electricity and output a direct current (DC) voltage, and
an inverter comprising four switches in an H-bridge configuration, said inverter receiving said direct current voltage from said rectifier and generating an alternating current (AC) voltage, and wherein said controller enables said power cell to operate in an ON state wherein said alternating current voltage of said power cell is maximum, an OFF state wherein said alternating current voltage of said power cell is zero, and a high efficiency state wherein said alternating current voltage is between said ON state and said OFF state;
wherein said controller is configured to monitor a load, and in response to changes in the load, to control each power cell's state so as to effectively operate with more or fewer power cells enabled.

US Pat. No. 10,218,276

ISOLATED MULTI-LEVEL RESONANT TOPOLOGIES FOR WIDE-RANGE POWER CONVERSION AND IMPEDANCE MATCHING

The Board of Trustees of ...

1. A DC to DC electric power converter comprising:a resonant power inverter configured to receive a DC input and to provide an AC output having a frequency fout, wherein an output impedance of the power inverter is Zout;
two or more resonant rectifier circuits directly connected to the AC output provided by the power inverter without a transformation stage between the power inverter and rectifier impedance provided by the two or more resonant rectifier circuits, wherein the resonant rectifier circuits are tuned to operate resonantly at fout, and wherein the resonant rectifier circuits are each configured to receive the AC output and to provide a DC output;
wherein DC electrical isolation between the two or more resonant rectifier circuits is provided exclusively with capacitors; and
wherein impedance matching is provided either by parallel connections of the resonant rectifier circuits to the power inverter or by series connections of the resonant rectifier circuits to the power inverter.

US Pat. No. 10,218,275

MULTI-STAGE VOLTAGE MULTIPLICATION CIRCUIT FOR INVERTING A DIRECT CURRENT POWER SIGNAL

Smart Prong Technologies,...

1. A system, comprising:a boost circuit configured to:
receive a direct current (DC) signal at a first DC voltage, a duty clock signal, and a reference DC signal at a second DC voltage, wherein the duty clock signal controls a duty cycle of components within the boost circuit;
generate a first intermediate DC signal at a third DC voltage based on the duty clock signal and a comparison of the reference DC signal and a second intermediate DC signal received at a fourth DC voltage, wherein the boost circuit is further configured to adjust the third DC voltage of the first intermediate DC signal to cause the fourth DC voltage of the second intermediate DC signal to approach the second DC voltage of the reference DC signal based on the comparison of the reference DC signal and the second intermediate DC signal;
a voltage converter circuit electrically coupled to the boost circuit and configured to:
receive the first intermediate DC signal at the third DC voltage;
receive a clock signal; and
generate the second intermediate DC signal at the fourth DC voltage, wherein the fourth DC voltage of the second intermediate DC signal is greater than the third DC voltage of the first intermediate DC signal;
a voltage driver circuit electrically coupled to the voltage converter circuit and configured to:
receive the second intermediate DC signal at the fourth DC voltage; and
generate an alternating current (AC) signal at an AC voltage based on the second intermediate DC signal at the fourth DC voltage;
a low voltage circuit electrically coupled to the boost circuit, the voltage converter circuit, and the voltage driver circuit and configured to:
determine a current of the first intermediate DC signal;
determine the fourth DC voltage of the second intermediate DC signal;
generate the duty clock signal based on the second intermediate DC signal at the fourth DC voltage, wherein the duty clock signal adjusts a duty cycle of the boost circuit;
generate the clock signal based on the current of the first intermediate DC signal and the fourth DC voltage of the second intermediate DC signal, wherein the clock signal adjusts a clock rate within the voltage converter circuit; and
transmit the clock signal to the voltage converter circuit.

US Pat. No. 10,218,274

SYSTEM AND METHOD FOR GENERATING A RIPPLE VOLTAGE FOR A RIPPLE BASED CONSTANT-ON-TIME DC-DC CONVERTER

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

1. A circuit for generating a ripple voltage for a ripple based constant-on-time DC-DC converter, the circuit comprising:a ripple voltage output;
a first charging circuit connected to the ripple voltage output;
a second charging circuit connected to the ripple voltage output;
a charge control circuit configured to charge the first charging circuit and the second charging circuit out-of-phase from each other in response to an on signal from a ripple based constant-on-time DC-DC converter;
wherein the voltage of the first charging circuit and the voltage of the second charging circuit are provided at the ripple voltage output as the ripple voltage.

US Pat. No. 10,218,273

ON DIE VOLTAGE REGULATION WITH DISTRIBUTED SWITCHES

Advanced Micro Devices, I...

1. A distributed voltage regulator comprising:a plurality of switches distributed in an area receiving a regulated voltage, each of the switches have one of N resistance values, N being an integer, the switches coupled to receive an unregulated voltage;
a plurality of switch control lines coupled to selectively enable selected ones of the plurality of switches according to values of respective ones of the switch control lines, each of the plurality of switches being coupled to receive one of the switch control lines, the selected ones of the switches to collectively convert the unregulated voltage to the regulated voltage; and
a selector circuit coupled to receive a first group of control lines and a second group of control lines and to supply a selected one of the first group and the second group of control lines as the switch control lines.

US Pat. No. 10,218,272

CONTROL CIRCUIT AND CONTROL METHOD FOR SWITCH POWER SUPPLY, AND SWITCH POWER SUPPLY

Joulwatt Technology (Hang...

1. A control circuit for a switch power supply comprising:an adjustment module that produces a first control voltage by comparing a period of a switch signal with a reference period;
a current source module that generates a first charging current according to the first control voltage;
a pulse signal generating module that converts the first charging current into an on time signal or off time signal of a switching transistor;
a driving module that produces the switch signal according to the on time or off time signal of the switching transistor, so as to control the turning on and turning off of the switching transistor; and
a time measurement module that obtains a time parameter according to the switch signal, and generates a periodic adjustment signal according to the time parameter; and
wherein the adjustment module adjusts the reference period according to the periodic adjustment signal to adjust the period of the switch signal.

US Pat. No. 10,218,271

ELECTRIC POWER SYSTEM

DANFOSS MOBILE ELECTRIFIC...

1. An electric power system comprising:a direct voltage rail;
one or more battery elements;
one or more supply-converters configured to transfer electric energy from the one or more battery elements to the direct voltage rail, each supply-converter being connected to one of the one or more battery elements;
one or more load-converters configured to convert direct voltage of the direct voltage rail into voltages suitable for one or more loads of the electric power system;
first over-current protectors connected between the direct voltage rail and each of the one or more supply-converters and between the direct voltage rail and each of the one or more load-converters; and
a capacitor system connected to the direct voltage rail via a second over-current protector and comprising one or more capacitors, the capacitor system being configured to supply fault current for switching one of the first over-current protectors into a non-conductive state in response to a fault causing a voltage drop at an electrical node connected to the direct voltage rail via the one of the first over-current protectors,
wherein a current limit of the second over-current protector is higher than a current limit of each of the first over-current protectors.

US Pat. No. 10,218,270

POWER CONVERTER

NATIONAL CHI NAN UNIVERSI...

1. A power converter, comprising:a power conversion circuit disposed to receive a control input and an input voltage, and configured to convert the input voltage into an output voltage that has a magnitude relating to the control input; and
a feedback control circuit including:
a voltage detector module coupled to said power conversion circuit for receiving the output voltage therefrom, and configured to generate a feedback signal having a frequency proportional to the magnitude of the output voltage;
a phase detector module coupled to said voltage detector module for receiving the feedback signal therefrom, disposed to receive a reference signal having a reference frequency, and configured to
generate a counting-up signal at a first logic level and a counting-down signal at a second logic level that is different from the first logic level when the reference frequency is higher than the frequency of the feedback signal, where the counting-up signal remains at the first logic level and the counting-down signal remains at the second logic level until the reference frequency becomes not higher than the frequency of the feedback signal, and
generate the counting-up signal at the second logic level and the counting-down signal at the first logic level when the reference frequency is lower than the frequency of the feedback signal, where the counting-up signal remains at the second logic level and the counting-down signal remains at the first logic level until the reference frequency becomes not lower than the frequency of the feedback signal; and
a control input generator module coupled to said phase detector module for receiving the counting-up signal and the counting-down signal therefrom, and configured to generate the control input based on the counting-up signal and the counting-down signal.

US Pat. No. 10,218,269

SWITCHING REGULATOR AND INTEGRATED-CIRCUIT PACKAGE

Rohm Co., Ltd., Kyoto (J...

1. A switching regulator arranged to generate an output voltage from an input voltage, comprising:a first switch having a first terminal connected to an application terminal of the input voltage;
a second switch having a first terminal connected to a second terminal of the first switch and a second terminal connected to an application terminal of a predetermined voltage lower than the input voltage;
a current detection unit arranged to detect current flowing in the second switch;
an inductor having a first terminal connected to a connection node between the first switch and the second switch;
a third switch having a first terminal connected to a second terminal of the inductor and a second terminal connected to the application terminal of the predetermined voltage;
a fourth switch having a first terminal connected to a connection node between the inductor and the third switch and a second terminal connected to an application terminal of the output voltage;
a first control circuit arranged to generate a step-down control signal for complementarily turning on/off the first switch and the second switch according to the output voltage; and
a second control circuit arranged to generate a step-up control signal for complementarily turning on/off the third switch and the fourth switch by fixing an on-duty D (0?D?1) of the third switch to a fixed value D? (0 the first control circuit includes a slope voltage generation unit arranged to accumulate current information detected by the current detection unit, and to combine the accumulated current information with a ramp voltage generated by a ramp voltage generation unit so as to generate a slope voltage, and the first control circuit generates the step-down control signal according to the slope voltage.

US Pat. No. 10,218,268

VOLTAGE REFERENCE CIRCUIT AND METHOD OF PROVIDING A VOLTAGE REFERENCE

Analog Devices Global Unl...

1. A voltage reference circuit, comprising:a source of current, and
a switched capacitor arrangement coupled to an output of the source of current, the switched capacitor arrangement comprising a battery capacitor and a reservoir capacitor, the reservoir capacitor configured to provide a reference voltage at an output of the circuit, wherein
the switched capacitor arrangement configured to:
output the reference voltage using the reservoir capacitor during a first phase of operation;
redistribute charge between the battery capacitor and the reservoir capacitor during a second phase of operation in order to increase the charge on the reservoir capacitor; and
continue charging the reservoir capacitor using the source of current during a third phase of operation.

US Pat. No. 10,218,267

POWER CONVERSION DEVICE

PHILIPS LIGHTING HOLDING ...

1. Power conversion device , for supplying a load with a Pulse Width Modulation (PWM) signal, comprising an inductive output filter having at least an output configured to be connected to the load, the power conversion device comprising:a power conversion module supplied by a DC input voltage (Vin) and configured for providing a plurality of output signals (PWM1, PWMn), each of the plurality of output signals is associated to each of the plurality of voltages (Vx1-Vx4, SN1) proportional to a requested conversion ratio wherein a selection module is arranged to receive the plurality of output signals to select one of the plurality of output signals, and to provide the selected output signal (Vx) to the output filter;
a conversion ratio control stage coupled to the power conversion module and defining a first operating mode and a second operating mode wherein when the conversion ratio control stage operates in the first operating mode the power conversion module provides said plurality of output signals in accordance with a first conversion ratio (M1), and when the conversion ratio control stage operates in the second operating mode the power conversion module provides said plurality of output signals in accordance with a second conversion ratio (M2); and
a controller configured to: determine a requested conversion ratio (m) based on the DC input voltage (Vin) and a target reference voltage (Vset); and based on the determined requested conversion ratio, control the conversion ratio control stage to operate in one of the first operating mode and the second operating mode.

US Pat. No. 10,218,266

DC-DC CONVERTER, AND DISPLAY DEVICE INCLUDING THE SAME

SAMSUNG DISPLAY CO., LTD....

1. A direct current to direct current converter for supplying a first power supply voltage and a second power supply voltage to a display panel, the direct current to direct current converter comprising:a first voltage converting circuit which converts an input voltage into the first power supply voltage;
a control block which stores information about a plurality of voltage levels of the second power supply voltage, to receive an external control signal, and to generate a voltage level selection signal indicating a first one of the plurality of voltage levels corresponding to the external control signal;
a second voltage converting circuit which converts the input voltage into the second power supply voltage having the first one of the plurality of voltage levels indicated by the voltage level selection signal; and
an abnormal state detector which detects an abnormal state of the display panel, and to provide a current limit signal to the control block when the abnormal state is detected,
wherein, in response to the current limit signal, the control block generates the voltage level selection signal indicating a second one of the plurality of voltage levels regardless of the external control signal such that the second voltage converting circuit forcibly changes the second power supply voltage from the first one of the plurality of voltage levels to the second one of the plurality of voltage levels.

US Pat. No. 10,218,265

STATE SPACE-BASED MULTI-LEVEL VOLTAGE REGULATOR SYSTEM

TDK-LAMBDA CORPORATION, ...

1. A multi-level voltage regulator system comprising:(a) State Space Selector (SSS);
(b) Function Parameter Table (FPT);
(c) State Measurement Sensor (SMS);
(d) Multi-Level Voltage Selector (MVS); and
(e) Sense Error Amplifier (SER);
wherein:
said FPT comprises operational parameters associated with the operation of an isolated Intermediate Bus DC-DC Converter (IBC) comprising a voltage bus input port (VBIP), voltage bus output port (VBOP), and voltage adjust input port (VAIP);
said SSS is configured to select an IBC Operational Parameter (IOP) from said FPT;
said IOP is associated with a Sensed Measurement Value (SMV) of said IBC operation that is acquired by said SMS;
said MVS is configured to generate a Stepped Reference Voltage (SRV) responsive to said IOP, said SMV, and the voltage potential at said VBIP; and
said SER is configured to accept said SMV and said SRV as inputs and generate an amplified error signal that is electrically coupled to said VAIP.

US Pat. No. 10,218,264

METHOD OF ELIMINATING POWER CONVERTER INPUT POWER VARIATIONS AND MINIMIZING ENERGY STORAGE CAPACITOR REQUIREMENTS FOR A PULSED LOAD SYSTEM

Raytheon Company, Waltha...

1. A power system comprising:a capacitor;
a power converter configured to charge the capacitor with a charge current, the power converter and the capacitor configured to deliver a pulsed load current to a load at a load voltage;
a current sensor disposed between the capacitor and the load, the current sensor configured to sense the pulsed load current and generate a sensed current signal;
a first analog-to-digital converter configured to convert the sensed current signal to a digital current signal;
a load voltage sensor disposed between the power converter and the capacitor, the load voltage sensor configured to sense the load voltage and generate a sensed load voltage signal;
a second analog-to-digital converter configured to convert the sensed load voltage signal to an instantaneous value of the load voltage;
a controller coupled to the power converter and comprising a digital signal processor, the controller configured to:
receive the digital current signal and the instantaneous value of the load voltage from the analog-to-digital converters and determine the pulsed load current and the load voltage,
determine an average value of the pulsed load current,
determine an average value of the load voltage,
determine an average power delivered to the load as a function of the average value of the pulsed load current and the average value of the load voltage,
determine an instantaneous value of the charge current of the power converter by dividing the average power by the instantaneous value of the load voltage, and
control the power converter as a function of the instantaneous value of the charge current such that the power converter draws a constant power from a power source while delivering the pulsed load current to the load;
a voltage error amplifier configured to receive the sensed load voltage signal and a reference voltage and to generate a voltage error output;
a current error amplifier configured to receive a sensed current of the power converter and to generate a current error output; and
a summer configured to sum the voltage error output and the current error output and to output an analog control signal that is input to the power converter.

US Pat. No. 10,218,263

INTRODUCING JITTER TO A SWITCHING FREQUENCY BY WAY OF MODULATING CURRENT LIMIT

Power Integrations, Inc.,...

1. A controller, comprising:a switch controller coupled to a power switch coupled to an energy transfer element, wherein the switch controller is coupled to receive a current sense signal representative of a drain current through the power switch, wherein the switch controller is coupled to generate a drive signal to control switching of the power switch in response to the current sense signal and a modulated current limit signal to control a transfer of energy from an input of a power converter to an output of the power converter;
a control modulator coupled to generate a first signal;
a jitter modulator coupled to generate a second signal, wherein the second signal is a periodic signal having a modulation time period that is greater than a switching period of the drive signal, and wherein during the modulation time period the second signal attains a peak value related to a sum of a first number and a second number and attains a bottom value related to a difference of the first number and the second number; and
an arithmetic operator circuit coupled to the control modulator and the jitter modulator, wherein the arithmetic operator circuit is coupled to generate the modulated current limit signal in response to the first signal and the second signal.

US Pat. No. 10,218,262

HYBRID DIRECT CURRENT LINK SYSTEM FOR A REGENERATIVE DRIVE

OTIS ELEVATOR COMPANY, F...

1. A system, comprising:a converter operatively connected to an alternating current (AC) power source and a direct current (DC) bus, the converter comprising a first plurality of switching devices in selective communication with each phase of the AC power source and the DC bus;
an inverter operatively connected to a motor and the DC bus, the inverter comprising a second plurality of switching devices in selective communication with each phase of the motor and the DC bus; and
a hybrid DC link system operatively connected between a high side and a low side of the DC bus, the hybrid DC link system comprising a ripple current control branch in parallel with an energy buffering branch, wherein:
the ripple current control branch comprises at least one film capacitor connected between the high side and the low side of the DC bus; and
the energy buffering branch comprises:
one or more electrolytic capacitors with an impedance element between the high side and the low side of the DC bus; and
a first resistor in parallel with a first electrolytic capacitor of the one or more electrolytic capacitors and a second resistor in series with the first resistor and parallel with a second electrolytic capacitor of the one or more electrolytic capacitors.

US Pat. No. 10,218,261

GRID CONNECTION POWER CONVERSION DEVICE AND START-UP CONTROL METHOD THEREFOR

Tabuchi Electric Co., Ltd...

1. A grid connection power conversion device for connecting a distributed power supply to a commercial power system, the grid connection power conversion device comprising:an inverter for converting DC power based on power input from the distributed power supply to AC power;
a capacitor connected between the inverter and the commercial power system;
a commercial voltage amplitude detection circuitry configured to detect an amplitude of a commercial system voltage which is a voltage of the commercial power system;
an amplitude adjustment circuitry configured to increase an amplitude of an output voltage from the inverter stepwise from 0 to match the amplitude of the commercial system voltage detected by the commercial voltage amplitude detection circuitry;
a grid connection switch for switching a connection of the distributed power supply to the commercial power system between a connected state and a disconnected state;
a disconnection/welding detection circuitry configured to detect disconnection of the grid connection switch, before starting grid-connected operation, based on a value of output current from the grid connection power conversion device, with the grid connection switch switched to the connected state, and also configured to detect welding of the grid connection switch, before starting the grid-connected operation, based on the value of the output current from the grid connection power conversion device, with the grid connection switch switched to the disconnected state; and
a start-up control circuitry configured to control the grid connection power conversion device so that after the amplitude adjustment circuitry adjusts the amplitude of the output voltage from the inverter, after the start-up of the grid connection power conversion device, to match the amplitude of the commercial system voltage detected by the commercial voltage amplitude detection circuitry, the start-up control circuitry connects the inverter to the commercial power system to start grid-connected operation.

US Pat. No. 10,218,260

DC-DC CONVERTER WITH SNUBBER CIRCUIT

Hyundai Motor Company, S...

1. A DC-DC converter comprising:an inductor configured to have a first end connected to an input terminal and a second end connected to an output terminal;
a switching circuit configured to determine whether power is to be applied from the input terminal to the inductor;
a snubber circuit configured to be connected to the first end and the second end of the inductor and to the output terminal;
an output current controller configured to derive an inductor current command value, which is a magnitude of a current flowing through the inductor, to allow an output current detection value obtained by detecting a current supplied to the output terminal to follow a predetermined output current command value; and
an inductor current controller configured to determine switching duty of the switching circuit to allow an inductor current detection value, obtained by detecting the current flowing through the inductor, to follow the inductor current command value.

US Pat. No. 10,218,259

POWER CONVERSION DEVICE

Mitsubishi Electric Corpo...

1. A power conversion device comprising:a filter circuit having a line-to-ground bypass capacitor connected between a pair of lines and a ground;
a switching circuit having a semiconductor switch; and
reactors connected between the filter circuit and the switching circuit,
wherein the reactors are two reactors provided in both of the pair of lines, the two reactors sharing a core, and
a common-mode inductance value L1 of the two reactors is set such that a relationship L1 wherein C1 is a combined capacity of the line-to-ground bypass capacitor, and
tr is a rise time of a voltage across a switch of the semiconductor switch.

US Pat. No. 10,218,258

APPARATUS AND METHOD FOR DRIVING A POWER STAGE

Dialog Semiconductor (UK)...

1. A method of driving a power stage comprising a first power switch coupled to a second power switch via a switching node; the method comprising:providing a first sensing resistance coupled to a control terminal of the first power switch and a second sensing resistance coupled to a control terminal of the second power switch;
sensing a first control-terminal voltage of one of the first power switch and the second power switch, comparing the first control-terminal voltage with a first reference value and generating a first control signal based on the comparison to turn on the first power switch;
sensing a second control-terminal voltage of one of the first power switch and the second power switch, comparing the second control-terminal voltage with a second reference value and generating a second control signal based on the comparison to turn on the second power switch.

US Pat. No. 10,218,257

POWER CONVERTER HAVING PARALLEL-CONNECTED SEMICONDUCTOR SWITCHES

SIEMENS AKTIENGESELLSCHAF...

1. An electric converter to transfer an electric power of more than 3 kilowatts, the electric converter comprising:a half-bridge with at least two parallel circuits;
each of the at least two parallel circuits including a plurality of semiconductor switches;
each of the at least two parallel circuits including at least two base circuits arranged next to one another on a common printed circuit board; and
each of the at least two base circuits includes one of the plurality of semiconductor switches and a gate driver circuit for the semiconductor switch;
each gate driver circuit electrically connected to a gate of the semiconductor switch by a control line; and
wherein, in each of the at least two parallel circuits, a shortest control line and a longest control line differ from one another with respect to length by no more than a factor of 1.5.

US Pat. No. 10,218,256

PRIMARY SIDE CONTROL OF PRIMARY RESONANT FLYBACK CONVERTERS

Apple Inc., Cupertino, C...

1. A primary resonant flyback converter comprising:a primary winding;
a secondary winding magnetically coupled to the primary winding and electrically coupled to an output rectifier, and an output terminal;
a resonant capacitor coupled in series with the primary winding;
a main switch configured to switch on to energize the primary winding and the resonant capacitor from a DC voltage bus and to switch off to transfer energy stored in the primary winding to the secondary winding;
an auxiliary switch configured to switch on during an off time of the main switch to allow a resonant current to circulate through the primary winding and the resonant capacitor; and
a control circuit configured to operate the main switch and the auxiliary switch to produce a desired voltage at the output terminal.

US Pat. No. 10,218,255

POWER CONVERTER WITH IMPROVED TRANSIENT LOAD RESPONSE

Dialog Semiconductor (UK)...

1. A power converter configured to convert between a first current (IN) at a first voltage provided at a first node and a second current (IouT) at a second voltage provided at a second node; wherein the first voltage and the second voltage are relative to a reference voltage; wherein the power converter comprisesa flying capacitor;
an inductor; wherein a second port of the inductor is coupled to the second node;
a first switch configured to couple or to decouple a first port of the flying capacitor to or from the first node;
a second switch configured to couple or to decouple the first port of the flying capacitor to or from a first port of the inductor;
a third switch configured to couple or to decouple a second port of the flying capacitor to or from the first port of the inductor;
a fourth switch configured to couple or to decouple the second port of the flying capacitor to or from the reference potential;
a bypass switch configured to couple or to decouple the second port of the flying capacitor to or from the second node; and
a control unit configured to
control the first, second, third and fourth switch during steady state operation within a sequence of different operations states, in order to set the second voltage or the second current to a target level;
detect occurrence of a load transient at the second node; and
in reaction to detecting occurrence of a load transient, at least partially close the bypass switch, in order to provide additional current from the flying capacitor to the second node or in order to divert current from the inductor towards the reference potential.

US Pat. No. 10,218,254

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

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

1. A method for operating a switched-mode power supply, the method comprising:synchronizing a phase and frequency of an asynchronous controller of the switched-mode power supply with a clock signal of a synchronous controller of the switched-mode power supply while the asynchronous controller is in control of a power stage of the switched-mode power supply;
presetting a state variable of the synchronous controller while the asynchronous controller is in control of the power stage of the switched-mode power supply, wherein presetting the state variable of the synchronous controller comprises setting an output of a compensation unit in the synchronous controller to a preset status; and
transferring control of the power stage from the asynchronous controller to the synchronous controller after the phase and frequency of the asynchronous controller are synchronized with the clock signal of the synchronous controller and after the state variable of the synchronous controller is preset.

US Pat. No. 10,218,253

MAGNETIC COUPLING ASSEMBLY

Zytec Technologies B.V., ...

1. Magnetic coupling assembly for coupling of a first rotary shaft and a second rotary shaft, wherein the first rotary shaft is a motor shaft and the second rotary shaft is a load shaft, the magnetic coupling assembly comprising:a motor side rotary hub connectable to the motor shaft;
a load side rotary hub connectable to the load shaft;
a first rotatable inductor rotor and a second rotatable inductor rotor;
a single central magnet rotor connected to the load side rotary hub, the central magnet rotor having two opposite sides facing in opposite axial directions and comprising a set of permanent magnets arranged in the central magnet rotor to provide a magnetic field extending from both opposite sides of the central magnet rotor, wherein the central magnet rotor is arranged centrally between the first and second rotatable inductor rotors in order to transfer torque between the central magnet rotor and the first and second rotatable inductor rotors;
a positioning mechanism coupled to the first and second rotatable inductor rotors and configured to selectively move the first and second inductor rotors to adjust axial distances between the central magnet rotor and the respective inductor rotors; and
a central shaft connected to or part of the motor side rotary hub, the first and second rotatable inductor rotors being connected to the central shaft, the first and second inductor rotors being configured to be rotated by the central shaft and to be movable in axial direction along the central shaft by the positioning mechanism.

US Pat. No. 10,218,252

LINEAR MOTOR AND POSITIONING APPARATUS

Hitachi, Ltd., Tokyo (JP...

1. A linear motor, comprising:a mover in which magnets are arranged, a polarity of the magnets alternating on one side of a magnetic body;
a plurality of magnetic poles that are arranged in such a way that the mover is held between the magnetic poles;
a winding that is wound onto at least one of the plurality of magnetic poles;
a core that connects the plurality of magnetic poles; and
a driving unit configured by the plurality of magnetic poles and the core that connects the magnetic poles, wherein
a polarity of the plurality of magnetic poles that are adjacent to one another along a moving direction of the mover is the same,
the linear motor is structurally configured to constitute a magnetic circuit in which a magnetic flux that is emitted from one of the magnets passes through an upper magnetic pole and returns to the one of the magnets through a lower magnetic pole via the core which connects the plurality of magnetic poles,
the core that connects the plurality of magnetic poles encloses the mover, and
the plurality of magnetic poles arranged with the mover held between the magnetic poles are shifted in the traveling direction of the mover.

US Pat. No. 10,218,251

ELECTROMAGNETIC LAUNCHER WITH CIRCULAR GUIDEWAY

1. An electromagnetic launcher comprising:a closed-loop-shaped guideway made of non-conductive material and configured for moveably retaining a projectile therein; and
conductive coils wound around, within, or embedded in the guideway, wherein the conductive coils are operable to be electrically connected to a power supply, such that the power supply provides an electric current to the conductive coils creating an electromagnetic field along the guideway for accelerating the projectile within the guideway.

US Pat. No. 10,218,250

VIBRATING ACTUATOR

Lofelt GmbH, Berlin (DE)...

1. A vibrating actuator, comprising:a stationary magnetic part including
at least two magnets arranged with same polarities facing each other;
a movable receiving part including a hollow member with a cavity for receiving the magnetic part and having two open ends such that the hollow member forms a tube and
at least one coil wrapped around the hollow member and an elastic member interconnecting the magnetic part and the hollow member; and
a chassis;
wherein the stationary magnetic part is fixed to the chassis via an attachment mechanism; and
the elastic member is attached to the hollow member on both ends thereof and to the attachment mechanism at the longitudinally outer ends of the arrangement of magnets; and wherein
the movable receiving part is conformed to perform a linear movement with changing direction causing a vibration when an alternating current passes through the at least one coil.

US Pat. No. 10,218,249

BRUSHLESS DC MOTORIZATION APPARATUS

BIONIX CANADA INC., Auro...

1. A direct-drive brushless DC motorization apparatus comprising:an outer rotor with forty or forty-four poles constructed with segments of permanent magnet material alternatively magnetized north and south, said outer rotor rotatable about an axis of a wheel;
an inner stator core of ferromagnetic material spaced inwardly of said outer rotor and defining a clearance gap with said outer rotor such that said outer rotor is rotatable about said inner stator core, said inner stator core having forty-two slots and defining teeth between said slots; and
a three-phase winding with coils of insulated wire being wound around said teeth of said inner stator core, said three-phase winding being divided in two sets of consecutive teeth for each of said three phases, with each of said two sets of a same phase being diametrically opposed in said inner stator core;
wherein said outer rotor, said inner stator core, and said three-phase winding is configured to operate under a motorization mode and/or an energy recuperation mode;
wherein said inner stator core has a hub supporting a stator yolk, and wherein structural elements extend radially outwardly from said hub with said structural elements being positioned circumferentially between centers of each set of said teeth of the same phase.

US Pat. No. 10,218,248

SGENX-1000A ROTOR LIFTING DEVICE

SIEMENS ENERGY, INC., Or...

15. A lifting tool assembly for lifting a rotor associated with a power generator, said tool assembly being mountable to a bearing pedestal having an enclosure that houses a bearing through which the rotor extends, said tool assembly comprising:a semi-circular base portion operable to be mounted to the bearing pedestal by bolts, where a curvature of the semi-circular base portion follows a curvature of a support portion of the bearing pedestal, said base portion including a mounting flange through which the bolts extend into a front face of the bearing pedestal, said base portion including a structure portion disposed in opening of the support portion of the bearing pedestal, and said structure portion including a first cut-out section, a second cut-out section and a center portion;
a first jack screw piece bolted to the structure portion and extending across the first cut-out section and a second jack screw piece bolted to the structure portion and extending across the second cut-out section;
a first jack screw threadably mounted to the first jack screw piece and partially extending into the first cut-out section and a second jack screw threadably mounted to the second jack screw piece and partially extending into the second cut-out section; and
a hydraulic assembly mounted to the center portion between the first and second jack screw pieces and including a hydraulic ram, wherein the hydraulic ram is operable to lift the rotor and the first and second jack screws are operable to hold the rotor in a lifted position,
wherein the center portion comprises a continuous top surface on which the hydraulic ram is mounted, and
wherein the hydraulic ram is mounted on a plate which is bolted to the center portion.

US Pat. No. 10,218,247

INTEGRATED MOTOR AND FLUID PUMP

General Electric Company,...

1. An electric pump comprising:(a) a hollow rotor defining a rotor inner surface, a rotor outer surface and a rotor cavity;
(b) a stator comprising a plurality of independently controllable stator sections disposed within the rotor cavity;
(c) a plurality of bearings configured to allow rotation of the hollow rotor;
(d) a fluid recirculation system comprising a production fluid circuit, wherein the production fluid circuit comprises:
a plurality of perforations disposed on a portion of the hollow rotor and located proximate to one or more fluid outlets; the plurality of perforations extending in a radial direction into the hollow rotor; and
a lubrication flow path extending from the plurality of perforations to a fluid flow path defined by the electric pump via the plurality of bearings,
wherein the hollow rotor comprises (i) one or more impellers fixed to the rotor outer surface, and (ii) one or more torque-producing complements to the plurality of independently controllable stator sections.

US Pat. No. 10,218,246

VARIABLE DIAMETER AND ANGLE VERTICAL AXIS TURBINE

Daniel Farb, Beit Shemes...

1. A vertical axis turbine, comprising:a plurality of blades;
a central shaft in communication with each blade of the plurality of blades;
each said blade comprising:
a substantially semicircular body including a leading side and a trailing side between oppositely disposed internal and external edges, each said blade being concave on the trailing side, and convex on the leading side; and,
wherein each said blade is of a diameter of a length d based on the diameter of the arc of the blade from the internal edge to the external edge, and the internal edge is a predetermined distance of a length p from the central shaft, wherein airspace is present between the internal edge and the shaft, and the internal edge does not overlap the shaft, such that the ratio of the length of d to p is 13:6 with a variation of 20% in each said lengths d and p of the ratio.

US Pat. No. 10,218,245

FAN-COOLED ELECTRICAL MACHINE WITH AXIAL THRUST COMPENSATION

Nuovo Pignone Srl, Roren...

1. A rotating machinery equipment comprising a rotating electrical machine comprising:a stator;
a rotating shaft;
a rotor mounted on the rotating shaft and rotating therewith;
a cooling fan comprised of a rotating impeller having a gas inlet and a gas outlet and mounted at a first end of the rotating shaft and rotating therewith;
a thrust disk integrally rotating with the impeller, the thrust surface being located on the thrust disk; and
cooling gas passages for delivering compressed cooling gas through the stator and rotor;wherein a cooling-gas distribution chamber is provided between the cooling fan and the stator and rotor, in fluid communication with the cooling fan and the cooling gas passages, compressed cooling gas delivered by the cooling fan being received in the cooling-gas distribution chamber and distributed therefrom to the cooling gas passages; andwherein the cooling fan is provided with a thrust surface facing the stator and rotor, gas pressure in the cooling-gas distribution chamber acting on the thrust surface, generating an axial force (AT) on the rotating shaft, the axial force being oriented in a direction opposite the cooling gas flow through the stator and rotor.

US Pat. No. 10,218,244

ELECTRIC ROTATING MACHINE

MITSUBISHI ELECTRIC CORPO...

1. An electric rotating machine comprising:a stator;
a rotor;
a rotation axle, of the rotor, that has an extending axle portion extending in an axial direction from the rotor;
a frame that supports the stator and the rotation axle;
an axial-flow fan that is fixed to the extending axle portion and blows air in the axial direction toward the stator and the rotor; and
a small-diameter portion fan guide that extends both in a circumferential direction and in the axial direction in such a way as to be provided in a space in a radial-direction outer side of a small-diameter portion that is a portion, of the extending axle portion, at a side departing from the rotor in the axial direction relative to a fan fixing portion to which the axial-flow fan is fixed and that has a diameter smaller than that of the fan fixing portion, the small-diameter portion fan guide being fixed to the frame,
wherein the small-diameter portion fan guide is disposed in such a way as to be provided with a space from the fan fixing portion in the axial direction and is divided in the circumferential direction.

US Pat. No. 10,218,243

MOTOR STRUCTURE FOR ELECTROLYTIC CORROSION PROTECTION OF BEARING

TOP CO., LTD., Echizen-S...

1. A motor including a rotor supported in a rotatable state and a stator, comprising:a housing provided to a portion of the stator, the portion being on a first side in a lamination direction in which electrical steel sheets forming a rotor core of the rotor are laminated, the housing including a tubular chamber, and formed of a conductive material;
a rolling bearing including an inner ring formed of a conductive material, an outer ring formed of a conductive material, and a rolling element formed of a conductive material, the inner ring being attached to an end portion of a rotating shaft formed of a conductive material of the rotor on the first side in the lamination direction in a state of not being in contact with a first end surface of the tubular chamber on the first side in the lamination direction, the outer ring being fitted onto an inner peripheral surface of the tubular chamber in a state of being in contact with the first end surface of the tubular chamber;
a sliding element formed of a conductive material and provided in the lamination direction between a second end surface of the rotating shaft on the first side in the lamination direction and the first end surface of the tubular chamber;
a retaining portion formed of a conductive material and provided in the lamination direction between the sliding element and the first end surface of the tubular chamber; and
a biasing portion formed of a conductive material, provided in the lamination direction between the retaining portion and the first end surface of the tubular chamber, and configured to bias the retaining portion toward a second side in the lamination direction, wherein
the rotating shaft and the housing are electrically connected by the sliding element, the retaining portion, and the biasing portion.

US Pat. No. 10,218,242

MOTOR

NIDEC CORPORATION, Kyoto...

1. A motor comprising:a rotating portion arranged to rotate about a central axis directed in a vertical direction;
a stationary portion; and
a bearing arranged to support the rotating portion such that the rotating portion is rotatable with respect to the stationary portion,
wherein
the rotating portion includes:
a shaft arranged to extend along the central axis;
a magnet;
a rotor hub arranged to extend in an annular shape around the shaft; and
a flywheel fixed to the rotor hub,
at least a portion of an outward surface of the rotor hub is a metal surface,
the metal surface is arranged radially inward of an outer circumferential surface of the flywheel,
a reflectance of the outer circumferential surface of the flywheel is lower than a reflectance of the metal surface,
the flywheel includes:
a flywheel main body; and
an inertia portion made of a metal and arranged to extend downward from a lower end of the flywheel main body, and
a reflectance of an of circumferential surface of the inertia portion is lower than the reflectance of the metal surface.

US Pat. No. 10,218,241

MOTOR, AND ELECTRIC POWER STEERING APPARATUS AND VEHICLE EQUIPPED WITH THE SAME

NSK LTD., Shinagawa-ku, ...

1. A motor that an outer periphery is enclosed in a case and wirings are implemented at an anti-load side, comprising:a configuration in which plural openings having an elliptical shape are provided in a circumferential direction on a case bottom surface at said anti-load side in a same interval,
a part of said plural openings having the elliptical shape are provided for protruding bus bars of motor windings and others of said plural openings having the elliptical shape are provided for being utilized as threaded holes,
said plural openings having the elliptical shape are a similar shape and are not contacted with said bus bars,
plural protrusions are provided in a circumferential direction on an axial end inside of an outer periphery of an insulator,
said insulator comprises plural notch sections which are cutouts disposed between said neighbor protrusions,
said motor comprises a bus bar structure which is provided at one side of a motor stator and is opposed to an axial end inside of an outer periphery of an insulator, and
engagement sections, which are provided on a circumferential side surface of said bus bar structure, are engaged with said notch sections, and
an insulating cap or an insulating film to cover said case is provided to insulate between said case and said bus bars.

US Pat. No. 10,218,240

FITTING OF STATOR BODY IN BEARING OF ROTARY ELECTRICAL MACHINE, AND ROTARY ELECTRICAL MACHINE COMPRISING THE FITTING

Valeo Equipements Electri...

1. A fitting of a stator body (14) of a stator (13) of a rotary electrical machine, the rotary electrical machine including:a bearing (15) having a skirt (155); and
the stator (13) mounted within the skirt (155) of the bearing (15) and having a stator body (14) equipped with a winding (12) within the stator body (14);
the stator body (14) is fitted in an inner support surface (250) for the skirt (155) of the bearing (15) of the rotary electrical machine, wherein the skirt (155) is heated locally by induction before fitting of the stator body (14) equipped with the winding (12) in the skirt (155).

US Pat. No. 10,218,239

BRUSHLESS MOTOR HAVING TERMINAL FIXING BLOCKS

BERGSTROM, INC., Rockfor...

1. A brushless motor, comprising:a stator having a stator core; and
an upper insulating bobbin connected to an upper face of the stator core, the upper insulating bobbin including a plurality of coil wound portions, and an upper surface of the upper insulating bobbin having a plurality of terminal fixing blocks and a plurality of wire through blocks, each terminal fixing block having a wire-through notch for positioning a wire on the upper insulating bobbin with respect to the coil wound portions and a terminal socket electrically connected with the wire,
wherein a first angle between the wire-through notch of each terminal fixing block and a radial direction of the upper insulating bobbin is 50°-130°, and wherein the terminal socket of each terminal fixing block is inserted into the terminal fixing block to be electrically connected with the wire in the wire-through notch.

US Pat. No. 10,218,238

SELF-ADHESIVE SLOT-CLOSING DEVICE FOR AN ELECTRIC MACHINE

1. A slot-closing device for closing a slot in a stator or a rotor of an electric machine, comprising:a closure element for closing the slot, said closure element containing a ferromagnetic material; and
an adhesive layer disposed on the closure element and designed to expand and harden when heated, said adhesive layer containing a thermally activatable blowing agent configured as an expansion element which contains a closed cavity filled with gas and is partially enclosed by a thermoplastic resin,
wherein a pressure of the gas in the cavity prior to an expansion is greater than 1.1 bar so that the thermoplastic resin expands when heat is applied to the thermoplastic resin.

US Pat. No. 10,218,237

METHOD FOR PRODUCING A STATOR FOR AN ELECTRIC MOTOR

Bayerische Motoren Werke ...

1. A method for producing a stator for an electric machine, comprising the steps of:providing a cylindrical stator body having a plurality of stator slots;
inserting one or more first coils into the stator slots, each of the one or more first coils having first coil ends on at least one end face of the stator body; and
subsequently inserting the first coil ends into a molded body, wherein the molded body having a plurality of partition walls extending radially outward from a circumferentially extending separating wall, the plurality of partition walls thereby separating and electrically insulating the first coil ends.

US Pat. No. 10,218,236

NEUTRAL POINT OF A GENERATOR

SIEMENS AKTIENGESELLSCHAF...

1. An electrodynamic machine, comprisinga rotatably mounted rotor and a stator arranged around the rotor and a housing arranged around the stator,
wherein the stator has a stator winding having three windings,
wherein the windings each have a terminal lead end and a neutral point end,
wherein the neutral point ends are connected to one another via a short-circuiting link to form a neutral point,
wherein the neutral point is within the housing,
wherein the short-circuiting link is designed such that electrical isolation can take place between the neutral point ends,
wherein the electrical isolation takes place by virtue of a movement of the short-circuiting link,
wherein the short-circuiting link is movable from outside the housing, when the housing is closed.

US Pat. No. 10,218,235

ROTOR OF ROTARY ELECTRIC MACHINE

TOYOTA JIDOSHA KABUSHIKI ...

1. A rotor for a rotary electric machine, the rotor comprising:a permanent magnet;
a rotor core having a plurality of core refrigerant passages, the permanent magnet being embedded in the rotor core, the core refrigerant passage being configured to guide refrigerant supplied from a shaft refrigerant passage to an outer peripheral end of the rotor core such that the refrigerant is released to a gap, the gap being defined between the rotor core and a stator, the shaft refrigerant passage being provided in a rotating shaft,
the core refrigerant passage including:
a first refrigerant passage extending from an inner peripheral end of the rotor core to a position radially inward of the permanent magnet, the first refrigerant passage being placed at a position deviating from a q-axis of the rotary electric machine in a circumferential direction,
a second refrigerant passage provided on the q-axis, the second refrigerant passage extending from the outer peripheral end of the rotor core toward an inner peripheral side in the rotor core, and
a third refrigerant passage configured to provide communication between the first refrigerant passage and the second refrigerant passage, the third refrigerant passage being placed at a position deviating from the second refrigerant passage in a rotor axis direction.

US Pat. No. 10,218,234

ELECTRIC MOTOR WITH ASYMMETRIC DESIGN FOR IMPROVED OPERATION

Rockwell Automation Techn...

1. A permanent magnet machine, comprising:a stator in the permanent magnet machine having a plurality of windings, wherein each winding includes a plurality of turns of an electrical conductor;
a rotor in the permanent magnet machine having a plurality of poles, wherein each pole includes a magnetic structure operable to interact with a current conducted in the plurality of windings to cause rotation of the rotor;
a plurality of segments defined within the permanent magnet machine, wherein;
each of the plurality of segments is defined from a center axis of the permanent magnet machine to an outer periphery of the permanent magnet machine and spans an angular distance around the permanent magnet machine equal to an angular distance spanned by each of the other segments,
the plurality of windings in the stator are distributed within each of the plurality of segments such that an equal number of windings are located within each of the plurality of segments,
the plurality of poles in the rotor are distributed within each of the plurality of segments such that an equal number of poles are located within each of the plurality of segments,
each winding, selected from the equal number of windings located within one of the plurality of segments, has an equal number of turns as the other windings within the corresponding segment, and
a physical construction of each pole, selected from the equal number of poles located within one of the plurality of segments, is the same;
a first asymmetry located in the rotor, wherein the first asymmetry is defined by a first physical construction of each pole located in a first segment, the first segment selected from the plurality of segments, being different than a second physical construction of the poles in other segments selected from the plurality of segments; and
a second asymmetry located in the stator and within one of the plurality of segments of the permanent magnet motor.

US Pat. No. 10,218,233

MULTI-COMPONENT ROTOR FOR AN ELECTRIC MOTOR OF AN APPLIANCE

Whirlpool Corporation, B...

1. A rotor for an appliance motor comprising:an inner polymeric member attached to a structural disk; and
an outer polymeric member attached to a portion of the structural disk; wherein
the inner polymeric member is further overmolded onto a central hub to occupy an attachment portion defined between a perimetrical ring and a core of the central hub.

US Pat. No. 10,218,232

HIGH SPEED ELECTRIC MACHINE

General Electric Company,...

1. An electric machine defining an axial direction, a radial direction, and a circumferential direction, the electric machine comprising:a rotor disk rotatable about the axial direction;
a rotor flange attached to or formed integrally with the rotor disk and extending from the rotor disk substantially along the axial direction;
a plurality of rotor magnets mounted to the rotor flange; and
a stator assembly comprising:
a tracking tooth operable with the rotor magnets to produce a torque, the tracking tooth being spaced apart from the rotor magnets along the radial direction to define an air gap; and
an actuator assembly operable with the tracking tooth for moving the tracking tooth along the radial direction to adjust a height of the air gap.

US Pat. No. 10,218,231

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. 10,218,230

LOW-VOLTAGE DIRECT CURRENT MOTOR

Johnson Electric Internat...

1. A brush roller for a vacuum cleaner, the brush roller being driven by a low-voltage direct current motor, the low-voltage direct current motor comprising:a stator comprising a round housing, a permanent magnet mounted to an inner surface of the housing, and brushes; and
a rotor rotatable relative to the stator, the rotor comprising a shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft adjacent to the rotor core, and rotor windings wound about poles of the rotor core and electrically connected to the commutator,
wherein the brushes of the stator are disposed in sliding contact with the commutator, an input voltage of the motor is in the range of 7 to 36V, and a ratio of an outer diameter of the rotor core to an outer diameter of the housing is in the range of 67% to 75%, wherein the permanent magnet is a ferrite magnet made of a material with a maximum energy product BHmax of 35.8±1.6 kj/m3, and wherein the outer diameter of the housing is 27.5 mm±0.3 mm, and the outer diameter of the rotor core is 19 mm±0.2 mm, and wherein when an axial length of the magnet is 21.0 mm±2.1 mm, 27.5 mm±0.3 mm, or 34 mm±0.3 mm, the motor is capable of achieving a rated power output of 20 W, 50 W, or 80 W, respectively.

US Pat. No. 10,218,229

SYSTEMS AND METHODS FOR MANAGING A DISTRIBUTED WIRELESS POWER TRANSFER NETWORK FOR ELECTRICAL DEVICES

POWERMAT TECHNOLOGIES LTD...

1. A system for managing a wireless power transfer network, the system comprising:at least one wireless power outlet unit operable to transfer power to at least one electrical device associated with a wireless power receiver; and
at least one management server in communication with said at least one wireless power outlet unit, said at least one management server operable to execute instructions directed to:
receiving an identification code from said at least one wireless power outlet unit; and
managing power transfer from said at least one wireless power outlet unit,
wherein said managing power transfer is configured to determine power transfer conditions for said at least one wireless power outlet unit by a policy enforcement technique that is adapted to provide different levels of services selected from the group of levels consisting of administrator, Madmin, and Muser,
wherein the policy enforcement technique is selected from the group of policies consisting of user identification, type of service, type of device, and a combination thereof, and
wherein the user identification policy is selected from the group of actions consisting of user identification, location identification, starting time, ending time, duration of power transfer, and a combination thereof.

US Pat. No. 10,218,228

DETECTING AN OBJECT ON A WIRELESS CHARGING DEVICE

Intel Corporation, Santa...

1. A power transmitting device comprising:one or more coils;
at least one memory that stores computer-executable instructions; and
at least one processor configured to access the at least one memory, wherein the at least one processor is configured to execute the computer-executable instructions to:
cause to send to a first device a first load measurement request at a first instance and a second load measurement request at a second instance;
receive a first load measurement associated with the first load measurement request and a second load measurement associated with the second load measurement request;
determine a first average measurement of the first load measurement and the second load measurement;
cause to send to a second device a third load measurement request at a third instance and a fourth load measurement request at a fourth instance;
receive a third load measurement associated with the third load measurement request and a fourth load measurement associated with the fourth load measurement request;
determine a second average measurement of the third load measurement and the fourth load measurement;
perform a load measurement of the one or more coils of the power transmitting device; and
determine a presence of one or more rogue devices based at least in part on a comparison of the load measurement and an aggregate of the first average measurement and the second average measurement.

US Pat. No. 10,218,227

COMPACT PIFA ANTENNA

Energous Corporation, Sa...

1. A planar inverted-F antenna (PIFA), comprising:a printed circuit board (PCB) formed of an electrically insulating material with a low electrical conductivity, the PCB having a top surface and a bottom surface, and a thickness defined by a shortest distance between the top surface and the bottom surface;
an antenna element formed of an electrically conducting material with an electrical conductivity higher than that of the PCB, the antenna element disposed on the top surface of the PCB, the antenna element having a predetermined impedance bandwidth and a plurality of slots arranged to provide the antenna element with a surface area smaller than a surface area of an antenna element having the same impedance bandwidth but not having a plurality of slots, all other parameters relevant to the impedance bandwidth being equal;
a ground element formed of an electrically conducting material with an electrical conductivity higher than that of the PCB, the ground element disposed on the bottom surface of the PCB and operatively coupled to the antenna element, the ground element having a continuous perimeter defining a central area at least a portion of which comprises a layer formed of the electrically conducting material, the layer having: (i) at least one internal opening, and (ii) at least one internal slot arranged to provide the ground element with a layer smaller than a layer of a ground element providing the same radiation efficiency but not having at least one internal slot and at least one internal opening, all other parameters relevant to the radiation efficiency being equal.

US Pat. No. 10,218,226

POWER RECEIVER

FUJITSU LIMITED, Kawasak...

1. A power receiver comprising:a secondary-side resonant coil configured to utilize magnetic field resonance or electric field resonance, generated between a primary-side resonant coil and the secondary-side resonant coil, to receive electric power from the primary-side resonant coil;
a rectifier circuit connected to the secondary-side resonant coil and configured to rectify alternating-current power input from the secondary-side resonant coil;
a smoothing circuit connected to an output side of the rectifier circuit;
a DC-DC converter connected to an output side of the smoothing circuit and having first and second output terminals;
third and fourth output terminals disposed on an output side of the DC-DC converter and connected to a secondary battery;
a sub-secondary battery having fifth and sixth output terminals respectively connectable to the third and fourth output terminals and configured to output direct-current power to the secondary battery;
a switch disposed between the first and second output terminals and the third and fourth output terminals and configured to switch connection between the first and second output terminals, the third and fourth output terminals, and the fifth and sixth output terminals; and
a controller configured, when the secondary-side resonant coil starts to receive the electric power from the primary-side resonant coil, to control the switch so as to respectively connect the first and second output terminals and a load or first and second input terminals of the sub-secondary battery and so as to respectively connect the third and fourth output terminals and the fifth and sixth output terminals,
wherein, after a predetermined time for starting up the secondary battery has passed after the secondary-side resonant coil starts to receive the electric power from the primary-side resonant coil, the controller controls the switch so as to respectively connect the third and fourth output terminals and the first and second output terminals and so as to respectively disconnect the first and second output terminals and the load or the first and second input terminals of the sub-secondary battery and controls the switch so as to respectively disconnect the third and fourth output terminals and the fifth and sixth output terminals.

US Pat. No. 10,218,225

WIRELESS POWER TRANSFER GATE-DRIVE POWER REDUCTION

Avago Technologies Intern...

1. A wireless power transfer (WPT) receiver circuit, the circuit comprising:a receive coil configured to couple to a transmit coil of a WPT transmitter circuit;
a rectification circuit coupled to the receive coil and configured to generate a rectified voltage, wherein the rectification circuit comprises a bridge rectifier circuit including a first set of field-effect transistor (FET) switches; and
one or more gate-drive control circuits including a first and a second switch and configured to improve power dissipation of the rectification circuit by controlling drive voltages of gate terminals of the first set of FET switches after start-up of the WPT receiver circuit, wherein the first switch is configured to allow switching between start-up and after start-up gate-drive voltages.

US Pat. No. 10,218,224

TUNABLE WIRELESS ENERGY TRANSFER SYSTEMS

WiTricity Corporation, W...

1. A system for wireless power transfer comprising:sensing and measurement circuitry configured to process signals associated with a resonator and an impedance matching network coupled with the resonator;
a PWM (pulse width modulation) generator configured to control a driving signal to drive the resonator through the impedance matching network, the PWM generator being coupled with at least two power transistors of an amplifier coupled with the impedance matching network to drive the resonator through the impedance matching network; and
a controller coupled with the sensing and measurement circuitry, the controller configured to adjust operation of the PWM generator and operation of the impedance matching network based on measured signals from the sensing and measurement circuitry, including the controller being configured to control a duty cycle of the driving signal, a phase of the driving signal, or both the duty cycle and the phase of the driving signal from the PWM generator to adjust a power output level, an impedance, or both the power output level and the impedance, while maintaining a zero voltage switching condition at the amplifier.

US Pat. No. 10,218,223

PORTABLE DEVICE, CHARGING SYSTEM, AND POWER SOURCE CIRCUIT SUBSTRATE

NITTO DENKO CORPORATION, ...

1. A portable device comprising:a secondary battery;
a plurality of driving components driven by charged power of the secondary battery, one of the plurality of driving components being a hearing aid function component;
a charging unit configured to charge the secondary battery by an input of outside power supplied from outside of the portable device;
a plurality of transformation units each configured to output the charged power of the secondary battery at a driving voltage of a corresponding one of the plurality of driving components;
a detection unit configured to detect the input of the outside power to the charging unit; and
a switching controller configured to switch a state of one of the plurality of transformation units from an operation state to a stopped state responsive to detecting the input of the outside power to the charging unit causing only the corresponding one of the plurality of driving components to switch states, by switching from the operation state to the stopped state to stop operation during charging of the secondary battery, the one of the plurality of transformation units being switched from the operation state to the stopped state being the transformation unit configured to output the charged power of the secondary battery to the hearing aid function component.

US Pat. No. 10,218,222

NON-CONTACT CHARGING MODULE HAVING A WIRELESS CHARGING COIL AND A MAGNETIC SHEET

Panasonic Intellectual Pr...

1. A non-contact charging module comprising:a wireless charging coil formed of an electrical wire wound to form a winding portion having a circular shape and two leg portions, wherein the electrical wire in the winding portion is wound in one layer, and the electrical wire is wound to define a hollow portion surrounded by the winding portion; and
a magnetic sheet overlapping the wireless charging coil and having a shape that does not coincide with the circular shape of the winding portion of the wireless charging coil;
wherein
a first height of the magnetic sheet in a thickness direction of the magnetic sheet is greater than a second height of the winding portion of the wireless charging coil;
the largest span of the hollow portion surrounded by the winding portion of the wireless charging coil is between 10 mm and 20 mm; and
the magnetic sheet includes a recess at a position corresponding to at least a portion of at least one of the leg portions.

US Pat. No. 10,218,221

WIRELESS POWER TRANSFER USING ONE OR MORE ROTATING MAGNETS IN A RECEIVER

University of Florida Res...

1. A system, comprising:a transmitter that generates a dynamic magnetic field; and
a receiver comprising a magnet, a magnet casing, and at least one coil wrapped around the magnet casing, wherein the magnet is configured to rotate 360 degrees around its axis within the magnet casing without need for a physical axle in response to the dynamic magnetic field, wherein the rotating magnet produces a time-varying magnetic flux that induces a voltage across the at least one coil.

US Pat. No. 10,218,220

WIRELESS POWER TRANSMITTER AND METHOD OF CONTROLLING THE SAME

Samsung Electro-Mechanics...

1. A wireless power transmitter, comprising:a resonator configured to transmit a detection signal;
a period detector configured to detect a period of oscillation of an oscillation signal caused by remnants of the detection signal, and generate a pulse signal substantially corresponding to the oscillation signal; and
a controller configured to receive the pulse signal from the period detector, and determine whether an external charging object is approaching in response to a change in the period of the oscillation signal, wherein the determining of whether the external charging object is approaching comprises determining whether the external charging object is approaching in response to a detected change in a pulse width of the pulse signal.

US Pat. No. 10,218,219

COIL DEVICE AND APPARATUS INCLUDING THE SAME

Samsung Electro-Mechanics...

1. A coil device comprising:a first coil;
a second coil disposed inside an inner boundary line of the first coil;
a first conduction part disposed in a same layer as the first coil and the second coil between the inner boundary line of the first coil and an outer boundary line of the second coil, the first conduction part dissipating heat; and
a first film disposed on upper surfaces of the first coil, the second coil, and the first conduction part.

US Pat. No. 10,218,218

SOLID-STATE LIGHTING SYSTEM OPERATED WITH A HIGH DC VOLTAGE

ALEDDRA INC., Renton, WA...

1. A light-emitting diode (LED) lighting system, comprising:a luminaire, comprising:
at least two electrical conductors configured to couple to a line voltage from alternate-current (AC) mains or a direct-current (DC) voltage from a DC power source;
one or more LED arrays;
a first full-wave rectifier connected to the at least two electrical conductors and configured to convert the line voltage from the AC mains into a first DC voltage or to receive and to pass the DC voltage from the DC power source;
an input filter configured to suppress a radio-frequency interference (RFI) noise; and
a Buck circuit coupled to the first full-wave rectifier via the input filter, the Buck circuit configured to provide a power factor correction and to convert the first DC voltage into a second DC voltage that powers up the one or more LED arrays and to meet LED luminaire efficacy and power factor requirements when the line voltage from the AC mains is available;
a rechargeable battery;
a second full-wave rectifier connected to unswitched AC mains and configured to convert a line voltage from the unswitched AC mains into a third DC voltage;
a first driver comprising an isolated step-down converter, a first ground reference, and a second ground reference electrically isolated from the first ground reference, wherein the first driver is coupled to the second full-wave rectifier and configured to convert the third DC voltage into a fourth DC voltage that charges the rechargeable battery to reach a fifth DC voltage;
a second driver comprising a step-up converter comprising a first electronic switch, a second electronic switch, and a center-tapped transformer, the second driver configured to receive the fifth DC voltage from the rechargeable battery and to convert the fifth DC voltage into a sixth DC voltage when the line voltage from the unswitched AC mains is unavailable; and
a voltage sensing and control circuit comprising a first voltage sensing circuit and a relay switch configured to connect either the line voltage from the unswitched AC mains or the sixth DC voltage to the at least two electrical conductors to operate the luminaire, the voltage sensing and control circuit configured to enable the second driver when a rechargeable battery test is performed,
wherein:
the first voltage sensing circuit is configured to detect whether the line voltage from the unswitched AC mains is available and to control the relay switch to couple the sixth DC voltage to the at least two electrical conductors when the line voltage from the unswitched AC mains is unavailable or when the rechargeable battery test is performed, and
the rechargeable battery test is performed to ensure that the rechargeable battery is in a working condition.

US Pat. No. 10,218,217

UPS FOR MIXED AC AND DC LOADS

SCHNEIDER ELECTRIC IT COR...

1. An Uninterruptible Power Supply (UPS) comprising:an input configured to be coupled to an AC source and to receive input AC power from the AC source;
a DC bus configured to be coupled to a DC source and to receive backup DC power from the DC source;
a first output configured to be coupled to at least one AC load and to provide output AC power having an output AC voltage to the at least one AC load derived from at least one of the input AC power and the backup DC power;
a second output configured to be coupled to at least one DC load and to provide output DC power having an output DC voltage to the at least one DC load derived from at least one of the input AC power and the backup DC power;
a first transformer having a first end of a primary winding coupled to the input, a second end of the primary winding coupled to the first output, and a secondary winding, the first transformer configured to provide at least a portion of the output AC power from the primary winding to the first output and to provide isolation between the input and the DC source;
a first bidirectional converter coupled between the DC bus and the first transformer, wherein the secondary winding of the first transformer is coupled between the primary winding and the first bidirectional converter;
a second bidirectional converter coupled between the DC bus and a second transformer, the second transformer coupled to the first output and configured to provide isolation between the first output and the second output; and
a controller configured to operate the second bidirectional converter to maintain the output AC voltage above a first threshold value and to operate the first bidirectional converter to maintain the output DC voltage above a second threshold.

US Pat. No. 10,218,216

SYSTEM AND METHOD FOR SUPPLYING UNINTERRUPTIBLE POWER TO A POE DEVICE IN A POWERED STATE

BTU RESEARCH LLC, Housto...

1. A system for supplying uninterruptible power, comprising:a housing;
a power supply input disposed within said housing, said power supply input having a power source interface on an outside of said housing;
a power source equipment input disposed within said housing, said power source equipment input having a power source equipment interface on an outside of said housing;
a powered device output disposed within said housing, said powered device output having a powered device interface on an outside of said housing;
an alternative power supply disposed within said housing;
a powered device connected to said powered device output by an Ethernet cable;
power source equipment connected to said power source equipment input, said power source equipment being powered separate from said power supply input and said alternative power supply; and
a control module connected to said power supply input, said power source equipment input, said powered device output, and said alternative power supply,
wherein said control module comprises an injector means, a comparator means, a switch means, and a converter means,
said comparator means detecting power from said power supply input and to said powered device output and connecting said power source equipment input and said power supply input to said switch means,
said converter means providing DC power from AC power from said power supply input and connecting said power supply input to said comparator means, said injector means, and said alternative power supply,
said switch means connecting said comparator means and said alternative power supply to said injector means,
said injector means collecting and distributing power, said injector means being comprised of a regulator and power autonegotiation module, said regulator connecting said switch means and said converter means to said power autonegotiation module, said power autonegotiation module connecting said regulator to said powered device output,
wherein said control module further comprises a battery charger, said battery charger storing power from at least one of said power supply input and said power source equipment input, said battery charger distributing power to said alternative power supply, and
wherein said alternative power supply is comprised of a plurality of battery packs, each battery pack being connected in series.

US Pat. No. 10,218,215

SYSTEM AND METHOD FOR SUPPLYING UNINTERRUPTIBLE POWER TO A POE DEVICE WITH ACTIVE POWER NEGOTIATION AND EXTENDED RANGE

BTU RESEARCH LLC, Housto...

1. A system for supplying uninterruptible power, comprising:a housing;
a power supply input disposed within said housing, said power supply input having a power source interface on an outside of said housing;
a power source equipment input disposed within said housing, said power source equipment input having a power source equipment interface on an outside of said housing;
a powered device output disposed within said housing, said powered device output having a powered device interface on an outside of said housing;
an alternative power supply disposed within said housing;
a powered device connected to said powered device output by an Ethernet cable;
power source equipment connected to said power source equipment input, said power source equipment being powered separate from said power supply input and said alternative power supply;
a control module connected to said power supply input, said power source equipment input, said powered device output, and said alternative power supply; and
a power source equipment extension between said powered device output and said powered device,
wherein said control module comprises an injector means, a comparator means, a switch means, and a converter means,
said comparator means detecting power from said power supply input and to said powered device output and connecting said power source equipment input and said power supply input to said switch means,
said converter means providing DC power from AC power from said power supply input and connecting said power supply input to said comparator means, said injector means, and said alternative power supply,
said switch means connecting said comparator means and said alternative power supply to said injector means,
said injector means collecting and distributing power, said injector means being comprised of a regulator and power autonegotiation module, said regulator connecting said switch means and said converter means to said power autonegotiation module, said power autonegotiation module connecting said regulator to said powered device output.

US Pat. No. 10,218,214

ENERGY MANAGEMENT SYSTEM WITH DETECTION VOLTAGE CALIBRATION

MURATA MANUFACTURING CO.,...

1. An energy management system comprising:a DC voltage bus;
a power generator connected to the DC voltage bus and configured to output a generated electric power to the DC voltage bus;
a bidirectional DC-DC converter connected to the DC voltage bus and configured to receive a DC voltage from the DC voltage bus or output a DC voltage to the DC voltage bus; and
an inverter connected to the DC voltage bus and configured to convert the DC voltage received from the DC voltage bus to an AC voltage,
wherein each of the power generator, the bidirectional DC-DC converter, and the inverter includes a voltage detector configured to detect a voltage of the DC voltage bus and a switching controller configured to perform switching control such that the voltage detected by the respective voltage detector matches a target value,
wherein the energy management system further comprises:
a calibration value selector configured to compare the voltages detected by the respective voltage detectors and to set a calibration value to a highest voltage of the detection voltages; and
a calibrator configured to calibrate the detection voltages of the voltage detectors with the set calibration value.

US Pat. No. 10,218,213

PORTABLE POWER CHARGER WITH POWER INPUT AND POWER OUTPUT CONNECTION INTERFACES

Halo International SEZC L...

1. A portable charger unit for recharging at least one electronic device having a rechargeable internal battery, said portable charger unit comprising:a charger housing internally storing a rechargeable battery;
a wall plug input connection interface connected to the charger housing for movement between an extended position where said wall plug input connection interface extends away from the charger housing for use and a retracted position for storage of said wall plug input connection interface within the charger housing, said wall plug input connection interface being operatively connected to the internal battery for providing an electrical charge from an external wall socket power source to the charger unit when said wall plug input connection interface is operatively engaged with said power source and for recharging the internal battery when the charger unit is connected to said power source in said manner;
a car charger input connection interface connected to the charger housing for movement between an extended position where said car charger input connection interface extends away from the charger housing for use and a retracted position for storage within the charger housing, said car charger input connection interface being operatively connected to the internal battery for providing an electrical charge from an external car charger socket to the charger unit when said car charger input connection interface is operatively engaged with said external car charger socket and for recharging the internal battery when the charger unit is connected to said car charger socket in said manner,
wherein both the wall plug interface and the car charger interface are pivotable to respective retracted positions and disposed within the general footprint of the charger housing when in said retracted positions, and
at least one power connection output connector cable operatively connected to the internal battery for providing an electrical charge from the internal battery to an electronic device when said device is connected to the charger unit via the power connection output connector cable, said connector cable comprising:
a proximal end attached to the charger housing,
a distal end having an output connection interface adapted for engagement with an electronic device; and
an intermediate portion extending between said proximal and distal ends of said connector cable,
wherein at least the output connection interface of said power connection output connector cable is storable within a storage cavity formed in the charger housing so that said output connection interface is contained within the general footprint of the charger housing when not in use and is removable from said cavity to an extended position for use to connect with an electronic device.

US Pat. No. 10,218,211

DETERMINATION OF Q-FACTOR OF RESONANT TANK NETWORK

NXP USA, INC., Austin, T...

1. A wireless charger, comprising:a resonant converter that includes a switch network and a resonant tank network and generates a sinusoidal voltage signal;
an interface circuit that conditions the sinusoidal voltage signal; and
a controller operatively connected to the resonant converter by way of the interface circuit, wherein the controller is operable to determine a Q-factor of the resonant tank network by:
switching the switch network to excite transitory damped oscillations of the resonant tank network such that the resonant tank network generates the sinusoidal voltage signal;
acquiring an array of digital signal samples using the conditioned sinusoidal voltage signal that represent a waveform envelope of the transitory damped oscillations; and
determining the Q-factor using the array of digital signal samples.

US Pat. No. 10,218,210

ADAPTIVE IMPEDANCE CONTROL FOR WIRELESS CHARGING

Intel Corporation, Santa...

1. An apparatus comprising:a transmission coil; and
a power amplifier comprising:
a controller; and
a memory, comprising instructions to cause the controller to:
determine electric current output of the power amplifier;
perform a lookup of load reactance range based on the electric current output;
detect load impedance of the transmission coil;
calculate reactance based on the load impedance;
determine if reactance is within the load reactance range; and
adjust reactance shift compensation to obtain a reactance that is within the load reactance range if the reactance is not within the load reactance range.

US Pat. No. 10,218,209

SELECTING A CHARGING MODE FOR CHARGING A BATTERY OF A PORTABLE DEVICE

Motorola Mobility LLC, C...

1. A method comprising:detecting a coupling of a charging device at a portable device having a battery and charging circuitry that includes at least one step-down component, which converts a received voltage from the charging device to a present voltage of the battery, the charging circuitry further including at least one switch component that when activated, bypasses the at least one step-down component and collapses a voltage provided by the charging device to match a present voltage of the battery;
determining, based on information received from the charging device, a set of charging modes that are supported by the charging device;
identifying whether the set of charging modes includes a collapsed state charging mode;
in response to identifying that the set of charging modes includes the collapsed state charging mode, issuing a first notification to the charging device that identifies the collapsed state charging mode and that, when received by the charging device, triggers the charging device to operate in the collapsed state charging mode, wherein the collapsed state charging mode establishes at least one particular electrical current to be used for charging the battery; and
in response to determining the set of charging modes does not include the collapsed state charging mode, selecting an alternate charging mode from among the set of charging modes supported by the charging device and issuing a second notification to the charging device, the second notification identifying the alternate charging mode and triggering the charging device to operate in the alternate charging mode.

US Pat. No. 10,218,208

WIRELESS POWER TRANSFER SYSTEM HAVING WIRELESS POWER TRANSFER SYSTEM-CHARGER

LG INNOTEK CO., LTD., Se...

1. A wireless power transfer system-charger comprising:a power supply;
a transformer unit for converting a voltage supplied by the power supply into a direct current (DC) voltage; and
a controller for adjusting a level of the DC voltage of the transformer unit,
wherein the transformer unit includes a DC-DC converter and a control unit for receiving an output voltage of the DC-DC converter and adjusting the output voltage,
wherein the control unit includes a divider for dividing the output voltage of the DC-DC converter,
wherein the divider includes:
a first resistor connected to an output terminal of the DC-DC converter and a node; and
a second resistor connected between the node and the ground, and
wherein the controller is connected to the node to adjust the divided voltage of the divider.

US Pat. No. 10,218,207

RECEIVER CHIP FOR ROUTING A WIRELESS SIGNAL FOR WIRELESS POWER CHARGING OR DATA RECEPTION

Energous Corporation, Sa...

1. A method for charging an electronic device, the method comprising:receiving, by an antenna of the electronic device, a wireless signal, wherein:
a receiver chip is embedded in the electronic device and connected to the antenna, the receiver chip including a switch and rectifier circuitry, and
the switch is configured to route the wireless signal to either the rectifier circuitry or a transceiver of the electronic device;
in response to determining that the antenna is receiving power above a threshold level from the wireless signal, routing, via the switch, the received wireless signal to the rectifier circuity, the rectifier circuitry being configured to convert the wireless signal into usable energy for charging a battery of the electronic device connected to the rectifier circuitry, wherein the wireless signal routed to the rectifier circuitry is received from a wireless power transmitter positioned in a near-field distance from the antenna; and
in response to determining that the antenna is not receiving power above the threshold level from the wireless signal, routing, via the switch, the received wireless signal to the transceiver, the transceiver being configured to process the wireless signal as data from the wireless power transmitter or another electronic device, wherein the transceiver is not connected to the battery of the electronic device or the rectifier circuity of the receiver chip.

US Pat. No. 10,218,206

CHARGING VOLATAGE CONFIGURING METHOD FOR WIRELESS CHARGING AND WIRELESS POWER RECEPTION UNIT

Samsung Electronics Co., ...

1. A method for controlling a wireless power reception unit (PRU) which receives wireless charging power from a wireless power transmission unit (PTU), the method comprising:transmitting a first message including a first voltage configuration value to the wireless PTU;
receiving, from the wireless PTU, a charging power which is determined based on the first voltage configuration value by the wireless PTU;
measuring the charging power received from the wireless PTU;
when the measured charging power is smaller than a minimum power level for charging initiation or a difference between the measured charging power and the minimum power level is within a predetermined range, identifying a second voltage configuration value by adjusting the first voltage configuration value;
transmitting a second message including the second voltage configuration value to the wireless PTU; and
receiving the charging power of which a size is adjusted based on the second voltage configuration value.

US Pat. No. 10,218,205

WIRELESS POWER TRANSMISSION/RECEPTION DEVICE

Samsung Electronics Co., ...

1. A wireless power reception device comprising:a planar resonator configured to be coupled with external magnetic fields and generate an induced current;
a first ferrite member mounted on a first side of the planar resonator and positioned in a lower portion of the planar resonator; and
a second ferrite member mounted on a second side of the planar resonator opposite to the first side and positioned in an upper portion of the planar resonator,
wherein the external magnetic fields pass through an aperture of the planar resonator substantially from one of the first side of the lower portion of the planar resonator and the second side of the upper portion of the planar resonator to the other of the first side of the lower portion of the planar resonator and the second side of the upper portion of the planar resonator.

US Pat. No. 10,218,204

CHARGING SYSTEM ON CONSTANT CURRENT MODE AND METHOD THEREOF

PHIHONG TECHNOLOGY CO., L...

1. A charging method on constant current mode, comprising steps of:communicating with a rechargeable battery by a central control module to obtain a first current and a first voltage required to charge said rechargeable battery;
transmitting a first current output instruction regarding said first current and a first voltage output instruction regarding said first voltage by said central control module to a first charging module and a second charging module;
receiving said first current output instruction and said first voltage output instruction by said first charging module and said second charging module;
outputting a second voltage and a second current to said rechargeable battery and transmitting an output value of said second voltage and an output value of said second current to said central control module by said first charging module, and outputting a third voltage and a third current to said rechargeable battery and transmitting an output value of said third voltage and an output value of said third current to said central control module by said second charging module; and
when said central control module detects that difference between said output value of said second voltage and said first voltage is smaller than a predetermined voltage value, transmitting a fourth current output instruction, in which a fourth current equals said first current minus a predetermined current value, to said first charging module by said central control module.

US Pat. No. 10,218,203

CONTROL DEVICE FOR CONTROLLING CHARGING AND DISCHARGING OF A LITHIUM ION CAPACITOR

TOYOTA JIDOSHA KABUSHIKI ...

1. An electrical system for a motor vehicle, comprising:a lithium ion capacitor;
an electrical load configured to transmit electric power to and from at least the lithium ion capacitor; and
a controller, wherein
the controller is programmed to:
detect that a degree of degradation of the lithium ion capacitor reaches or exceeds a predetermined level as a result of charging and discharging the lithium ion capacitor according to a charging excess pattern that provides a higher charging current value than a discharge current value,
control the lithium ion capacitor to be charged and discharged according to a discharging excess pattern that provides a higher discharge current value than a charging current value, when the degree of degradation of the lithium ion capacitor reaches or exceeds the predetermined level, and
control the lithium ion capacitor to limit charging of the lithium ion capacitor to a state of charge that is equal to or lower than a predetermined value, based on the degree of degradation.

US Pat. No. 10,218,202

CHARGING OF ELECTRONIC DEVICES ON AN AIRCRAFT

INTERNATIONAL BUSINESS MA...

1. A computer-implemented method for charging an electronic device on an aircraft, the method comprising:monitoring a charging station on the aircraft by a charging control module;
determining whether the electronic device has been connected to the charging station;
receiving, via the charging control module, an indication that operation of the electronic device should be restricted to airplane mode;
transmitting a command by the charging control module through the charging station to the electronic device to instruct the electronic device to operate in airplane mode;
determining whether the electronic device is operating in airplane mode;
based on a determination that the electronic device is operating in airplane mode, activating the charging station; and
based on a determination that the electronic device is not operating in airplane mode, disabling the charging station.

US Pat. No. 10,218,201

CHARGE AND DISCHARGE CONTROL APPARATUS AND METHOD

Institute For Information...

1. A charge and discharge control apparatus, comprising:a first communication interface, being configured to receive a stored electricity parameter of a storage battery, the stored electricity parameter carrying a stored electricity amount of the storage battery;
a processing unit, being electrically connected to the first communication interface and configured to divide the stored electricity amount into a backup electricity amount and a plurality of predetermined discharge amount corresponding to a plurality of dispatching time points, each of the dispatching time points corresponding to a dispatching period and a predetermined discharge power; and
a second communication interface, being electrically connected to the processing unit and an electric loop and configured to receive a load parameter of the electric loop at each of the dispatching time points, each of the load parameters carrying a load power of the electric loop;
wherein the processing unit further performs the following operations at each of the dispatching time points: deciding a real discharge power that the storage battery provides to the electric loop according to a dispatching threshold and the load power corresponding to the dispatching time point and updating the backup electricity amount according to the real discharge power and the predetermined discharge amount.

US Pat. No. 10,218,200

SYSTEMS AND METHODS FOR ENHANCING THE PERFORMANCE AND UTILIZATION OF BATTERY SYSTEMS

GBatteries Energy Canada ...

1. A method of energy exchange in a battery having a plurality of battery cells, the method comprising:exchanging a sequence of pulses between two or more battery cells of the plurality of battery cells, wherein:
the sequence of pulses includes at least one supercluster of pulses,
the at least one supercluster of pulses includes a plurality of clusters of pulses,
each of the plurality of clusters of pulses includes a plurality of pulses that have opposite polarities, and
a relaxation period after each cluster of the plurality of clusters of pulses is longer than a relaxation period between adjacent pulses within the corresponding cluster.

US Pat. No. 10,218,199

SYSTEM OF BATTERIES AND METHOD OF CONTROLLING THIS SYSTEM

RENAULT S.A.S., Boulogne...

1. A system of electric batteries comprising:a first battery and a second battery that are connected to each other by a first polarity and a second polarity, wherein the first battery comprises:
a first relay and a second relay for direct connection respectively of a first pole of the first battery to the first polarity and a second pole of the first battery to the second polarity;
a third relay connecting the second pole to the second polarity across a preload resistance of the first battery;
a secondary power supply common to the first battery and the second battery to provide an activation energy to the first relay, the second relay, and the third relay;
means of supervision arranged to control activation of the first relay, the second relay, and the third relay in a staggered manner so that each activation of a relay follows a previous activation by at least a predetermined time period as a function of characteristics of the first, second and third relays so that a power supply current of the relay is about the same as a maintenance current level after a preceding activation command and expiration of the time period, wherein the first battery and the second battery are connected in parallel, and the third relay is activated first for connection of each of the first and second batteries.

US Pat. No. 10,218,198

BATTERY PACK

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

1. A battery pack, comprising:a battery including a plurality of battery cells; and
a battery manager to manage the battery, wherein the battery manager includes a mode receiver to receive mode selection signals from an electronic device wherein all mode selection signals are input through a same input terminal, wherein,
the mode receiver includes a first transistor, a second transistor, and a third transistor connected in parallel to the input terminal, and
the battery manager includes a main controller to receive information from the mode receiver and to control the battery and the electronic device, wherein the main controller is to classify the mode selection signals from the electronic device based on on/off information of the first transistor, the second transistor, and the third transistor and to control the battery and the electronic device.

US Pat. No. 10,218,197

ELECTRONIC DEVICE AND METHOD FOR UTILIZING PLURALITY OF CHARGING CIRCUITS

Samsung Electronics Co., ...

1. An electronic device comprising:a first charging circuit and a second charging circuit configured to charge a battery of the electronic device;
a state determination module configured to detect a connection of the electronic device to a charging device, and determine a state of the electronic device; and
a processor configured to select one of the first charging circuit and the second charging circuit based on the state of the electronic device,
wherein the first charging circuit comprises a switching charger and the second charging circuit comprises a linear charger,
wherein the state determination module is configured to detect at least one state from a group comprising surrounding electric field strength, remaining battery amount, battery temperature, communication throughput, and EMI noise, and
wherein the processor is configured to select the switching charger, when the detected state is included in a first range, and to select the linear charger, when the detected state is included in a second range.

US Pat. No. 10,218,196

SELECTION OF CHARGING MODES FOR AUTONOMOUS DEVICE

GM Global Technology Oper...

1. A system of selecting charging modes for a rechargeable energy storage unit in an autonomous device, the system comprising:a controller operatively connected to the rechargeable energy storage unit and including a processor and tangible, non-transitory memory on which is recorded instructions;
wherein execution of the instructions by the processor causes the controller to:
determine availability of at least one charging station and at least one parking lot through a survey of local charging infrastructure and local parking infrastructure, respectively, within a predefined radius of the autonomous device;
determine if it is cost-effective during an excursion to incur a charging fee at the at least one charging station or incur a parking fee at the at least one parking lot; and
if it is cost-effective to incur the charging fee, then the controller is configured to selectively employ at least one of a plurality of charging modes, including an open-ended charging mode and a defined departure charging mode.

US Pat. No. 10,218,195

SWITCHING-TYPE CHARGING CIRCUIT CAPABLE OF QUICKLY DROPPING THE VOLTAGE AT THE INPUT END TO ZERO

ANPEC ELECTRONICS CORPORA...

6. A switching-type charging circuit, having an input end and an output end, wherein an input voltage is received by the input end of the switching-type charging circuit and an output voltage is correspondingly provided to a battery from the output end of the switching-type charging circuit, comprising:a first switch;
a current detection unit, connected to the first switch, detecting a current flowing through the first switch;
a switching circuit, connected to the input end of the switching-type charging circuit through the first switch, receiving the input voltage and providing the output voltage to the battery through an inductor;
a control circuit, connected between the inductor and the output end of the switching-type charging circuit, adjusting a duty cycle of the switching circuit according to the output voltage of the switching-type charging circuit; and
a comparator, wherein a non-inverting input end of the comparator is connected to the current detection unit, an inverting input end of the comparator receives a reference current signal, and an output end of the comparator is connected to the control circuit;
wherein the battery generates a second inductive current and the second inductive current flows to the first switch through the inductor when the input voltage of the switching-type charging circuit is cut off, the current detection unit outputs a current signal indicating the current flowing through the first switch, the comparator compares the current signal and the reference current signal and outputs a comparison result to the control circuit, and the control circuit decreases a working frequency of the switching circuit when the comparison result indicates that the current signal is larger than or equal to the reference current signal, such that the second inductive current of the battery decreases and the current flowing through the first switch decreases to be equal to or less than a preset current.

US Pat. No. 10,218,193

E-CIGARETTE AND RE-CHARGING PACK

Nicoventures Holdings Lim...

1. A rechargeable e-cigarette comprising:a battery which provides a voltage output that has a maximum level when the battery is fully charged;
a connector located on an exterior of the e-cigarette to allow the e-cigarette to be electrically connected to an external power supply for re-charging without disassembly of the e-cigarette; and
a recharging mechanism for re-charging the battery using power from the external power supply when the connector is electrically connected to the external power supply;
wherein the re-charging mechanism is configured to determine the voltage output of the battery, and to prevent re-charging of the battery if the voltage output of the battery is above a first predefined threshold level, wherein the first predefined threshold level is below the maximum level of the voltage output of the battery, wherein the first predefined threshold level (P) represents an offset (O) relative to the maximum voltage output level (M) of the battery, and wherein O=M?P, and O is in a range of 0.075V to 0.3V.

US Pat. No. 10,218,192

ELECTRONIC DEVICE AND POWER ADAPTER, INCLUDING MAIN CONTROL CIRCUIT, THEREFOR

GUANGDONG OPPO MOBILE TEL...

1. A power adapter, comprising a communication interface through which the power adapter charges a battery in an electronic device and performs a data communication with the electronic device, an electromagnetic interference (EMI) filtering circuit, a high-voltage rectifying and filtering circuit, an isolation transformer, an output filtering circuit, and a voltage tracking and controlling circuit, wherein,the power adapter further comprises a power circuit, a main control circuit, a potential adjusting circuit, a current detection circuit, a voltage detection circuit and an output switch circuit;
an input end of the power circuit is connected with a secondary end of the isolation transformer; a power end of the main control circuit, a power end of the potential adjusting circuit and a power end of the current detection circuit are collectively connected with an output end of the power circuit; both a high-level end of the main control circuit and a high-level end of the potential adjusting circuit are connected with a positive output end of the output filtering circuit; a potential adjusting end of the potential adjusting circuit is connected with the voltage tracking and controlling circuit; a direct current input end of the current detection circuit is connected with the positive output end of the output filtering circuit; a current feedback end of the current detection circuit is connected with a current detecting end of the main control circuit; a clock output end of the main control circuit is connected with a clock input end of the potential adjusting circuit; a data output end of the main control circuit is connected with a data input end of the potential adjusting circuit; a first detecting end and a second detecting end of the voltage detection circuit are connected with a direct current output end of the current detection circuit and a negative output end of the output filtering circuit respectively; a first output end and a second output end of the voltage detection circuit are connected with a first voltage detecting end and a second voltage detecting end of the main control circuit respectively; an input end of the output switch circuit is connected with the direct current output end of the current detection circuit; an output end of the output switch circuit is connected with a third detecting end of the voltage detection circuit; a ground end of the output switch circuit is connected with the negative output end of the output filtering circuit; a controlled end of the output switch circuit is connected with a switching control end of the main control circuit; a power end of the output switch circuit is connected with the secondary end of the isolation transformer; each of the negative output end of the output filtering circuit, the output end of the output switch circuit and a first communication end and a second communication end of the main control circuit is connected with the communication interface;
the power circuit obtains power supply from the isolation transformer and provides the power supply for the main control circuit, the potential adjusting circuit and the current detection circuit; when a quick charging is performed on the battery in the electronic device, the potential adjusting circuit drives the voltage tracking and controlling circuit to adjust an output voltage of the isolation transformer according to a control signal sent by the main control circuit; the current detection circuit detects an output current of the power adapter and feeds back a current detecting signal to the main control circuit, and the voltage detection circuit detects an output voltage of the power adapter and feeds back a voltage detecting signal to the main control circuit; the output switch circuit turns on or off a direct current output of the power adapter according to a switching control signal sent by the main control circuit;
when a conventional charging or a quick charging is performed on the battery in the electronic device, the main control circuit determines whether the output current of the power adapter is greater than a current threshold according to the current detecting signal and determines whether the output voltage of the power adapter is greater than a voltage threshold according to the voltage detecting signal; if the output current of the power adapter is greater than the current threshold and/or the output voltage of the power adapter is greater than the voltage threshold, the main control circuit controls the output switch circuit to turn off the direct current output of the power adapter;
during the data communication between the main control circuit and the electronic device, if the electronic device determines that the output current of the power adapter is greater than the current threshold and/or the output voltage of the power adapter is greater than the voltage threshold, and feeds back a charging stop instruction to the main control circuit, the main control circuit controls the output switch circuit to turn off the direct current output of the power adapter according to the charging stop instruction.

US Pat. No. 10,218,191

RECHARGEABLE BATTERY

LEAPFROG ENTERPRISES, INC...

1. A rechargeable battery pack configured to provide power to a device that also accepts at least one standard non-rechargeable battery, the rechargeable battery pack comprising:a housing including:
a main housing portion having a form factor of the at least one standard non-rechargeable battery for housing at least one battery cell; and
a recharging circuitry housing portion molded integrally as part of the housing and extending laterally outward from a side of the main housing portion for housing a recharging circuitry;
the recharging circuitry coupled with the at least one battery cell, the recharging circuitry configured to charge the at least one battery cell when the rechargeable battery pack is inserted into the device that also accepts the at least one non-rechargeable battery;
a protection circuit coupled with the recharging circuitry;
power contacts on the main housing portion configured to provide power from the at least one battery cell to the device; and
one or more circuitry on the recharging circuitry housing portion configured to electrically couple the recharging circuitry to the device.

US Pat. No. 10,218,190

BATTERY APPARATUS AND CELL BALANCING CIRCUITS

TEXAS INSTRUMENTS INCORPO...

1. A battery apparatus, comprising:a plurality of first battery cells connected in series with one another;
a switching circuit to selectively couple first and second switching circuit nodes with a selected battery cell of the plurality of first battery cells;
a balancing circuit to transfer charge between the selected battery cell and a second battery, the balancing circuit including:
a first pair of battery connections coupled with the first and second switch circuit nodes,
a second pair of battery connections to couple with a second battery,
a transformer, including:
a first winding wound around a transformer core and coupled with the first pair of battery connections,
a second winding wound around the transformer core and coupled with the second pair of battery connections, and
a third winding wound around the transformer core,
a first rectifier circuit coupled to receive a signal from the third winding, the first rectifier circuit operative to provide a first rectifier output signal according to the signal from the third winding,
a first transistor coupled between the first pair of battery connections and the first winding, the first transistor including a first control terminal,
a second transistor coupled between the second pair of battery connections and the second winding, the second transistor including a second control terminal coupled to receive a signal from the second winding responsive to current flow in the first winding to allow current flow between the second winding and the second pair of battery connections, and
a first control circuit responsive to a first enable signal transitioning to a first state to provide a first pulse signal to the first control terminal of the first transistor to turn on the first transistor to allow current flow in the first winding, the first control circuit being responsive to the first rectifier output signal indicating current flow in the second winding below a threshold value while the first enable signal remains in the first state to provide a further pulse signal to the first control terminal of the first transistor to again turn on the first transistor.

US Pat. No. 10,218,189

ELECTRICAL ENERGY STORAGE SYSTEM

Dr. Ing. h.c. F. Porsche ...

1. An electrical circuit that comprises multiple electrically interconnected modules of the same type, each module interconnected with at least one other module by a pair of module terminals, each module having at least one electrical energy store or at least one electrical energy storage unit and at least two electrical switches that allow the connectivity of the at least one electrical energy store or of the at least one energy storage unit in relation to the at least one energy store or energy storage units of other modules to be changed, wherein at least one module of the multiple electrically interconnected modules comprises the at least one electrical energy storage unit that has at least two electrically series-connected electrical energy stores, wherein each of the series-connected electrical energy stores has at least one correction element that is configured to draw off electrical charge from the energy storage unit, or direct electrical charge into the energy storage unit, such that some of the electrical energy stores of the energy storage unit have a smaller electric current flowing through them than the other electrical energy stores of the energy storage unit,wherein each of the multiple electrically interconnected modules are configured to use suitable activation of the respective at least two electrical switches to selectively represent each of at least the following two states:
(1) the at least one electrical energy store or the at least one electrical energy storage unit of a module of the multiple electrically interconnected modules is connected in series with the at least one electrical energy store or the at least one electrical energy storage unit of a further module of the multiple electrically interconnected modules; and
(2) the at least one electrical energy store or the at least one electrical energy storage unit of a module of the multiple electrically interconnected modules is connected in parallel with the at least one electrical energy store or the at least one electrical energy storage unit of a further module of the multiple electrically interconnected modules.

US Pat. No. 10,218,188

STRING CURRENT LIMITED BATTERY CHARGING CONTROL

General Electric Company,...

1. A battery system, comprising:one or more control devices configured to control a charging output of a charger based at least in part on a string current of at least one of a plurality of battery strings, wherein the charging output is set to a minimum string voltage and increases based on feedback from the plurality of battery strings;
wherein the one or more control devices is configured to control a plurality of battery string contactors, each battery string contactor associated with at least one of the plurality of battery strings, to sequentially couple each of the plurality of battery strings to the charger when a charging voltage of the charger exceeds a battery string voltage associated with the battery string; and
wherein the one or more control devices is configured to sequentially couple the plurality of battery strings to the charger in ascending order of battery string voltage.

US Pat. No. 10,218,187

SIGNAL MODULATOR AND METHOD OF USE

1. A method of modulating a signal passing through a signal processing circuit comprising:providing a primary power supply and connecting an output of said primary power supply to an input of at least one wireless power transmitter at a first connection; and
connecting a power output from at least one wireless power receiver to a power input of said signal processing circuit at a second connection; and
positioning said wireless power transmitter at a distance from said wireless power receiver such that said wireless power receiver is receiving power from said wireless power transmitter; and
increasing said distance between said wireless power transmitter and said wireless power receiver, thereby reducing power transmitted to said signal processing circuit; and
decreasing said distance between said wireless power transmitter and said wireless power receiver, thereby increasing power transmitted to said signal processing circuit; and
providing at least one parallel circuit that contains a variable load wherein said parallel circuit is coupled between said first connection and said second connection; and
providing an unprocessed input signal into said signal processing circuit, wherein said signal processing circuit modulates said input signal based at least on the power transmitted to said signal processing circuit; and
providing a processed output signal from said signal processing circuit.

US Pat. No. 10,218,186

POWER FEEDING DEVICE AND NON-CONTACT POWER TRANSMISSION DEVICE

TDK CORPORATION, Tokyo (...

1. A power feeding device for transmitting power to a power receiving device in a non-contact manner, the power feeding device comprising:a power feeding coil unit including a magnetic body unit in which at least three magnetic bodies are spaced apart in a first direction, and a plurality of power feeding coils each formed of a wire wound around at least two magnetic bodies of the at least three magnetic bodies in the magnetic body unit;
a selection unit that selects a coil to which power is supplied from among the plurality of power feeding coils; and
a drive unit that supplies power to the coil selected by the selection unit,
wherein
the plurality of power feeding coils, which are located adjacently in the first direction, are configured such that the wires of the plurality of power feeding coils are wound in common around one or more magnetic bodies of the at least three magnetic bodies, the number of the one or more magnetic bodies being less than the number of the at least two magnetic bodies,
each of the at least three magnetic bodies has a longitudinal axis, and
the longitudinal axes of the at least three magnetic bodies are spaced perpendicular to the longitudinal axes and are parallel.

US Pat. No. 10,218,185

DEVICE FOR SWITCHING A SEMICONDUCTOR-BASED SWITCH AND SENSOR FOR DETECTING A CURRENT CHANGE VELOCITY AT A SEMICONDUCTOR-BASED SWITCH

Fraunhofer-Gesellschaft z...

1. Device for switching a semiconductor-based switch, comprising:a terminal configured to be connected to a control terminal of the semiconductor-based switch;
a controllable deactivation voltage source connected to the terminal and configured to provide, at least temporarily, a switching potential at a potential node; and
a control device configured to control the controllable deactivation voltage source in a time-varying manner, so that the controllable deactivation voltage source provides the switching potential during a switching interval at the potential node;
wherein the switching potential is galvanically coupled to a supply node to which a supply potential of the control device is applied and has a lower potential value than a threshold voltage of the semiconductor-based switch;
wherein the control device is configured to control the controllable deactivation voltage source so that, based on the provided switching potential, charge carriers that are stored in a control capacitance of the semiconductor-based switch flow out of the control capacitance and contribute to an operation of the control device based on the galvanic coupling; and
wherein the controllable deactivation voltage source is further connected to a static OFF-voltage and is configured to provide, when the controllable deactivation voltage source does not provide the switching potential, the holding potential at least temporarily, wherein the holding potential has a lower potential value than the threshold voltage of the semiconductor-based switch, so that when the controllable deactivation voltage source provides the static OFF-voltage, switching of the semiconductor-based switch is prevented.

US Pat. No. 10,218,184

METHOD FOR INHIBITING MULTIPLE INVERTER STATIONS FROM ENTERING PASSIVE CONTROL MODE IN ISLAND STATE

NR ELECTRIC CO., LTD., N...

1. A method for inhibiting multiple inverter stations from entering a passive control mode in an island state, comprising grouping inverter stations in a multi-terminal flexible direct-current transmission system into groups in advance, setting a priority of each inverter station for island detection in advance in each group, and setting a relevant fixed value of each inverter station for island detection according to the priority, wherein when detecting an island state, an inverter station enters a passive control mode only when all other inverter stations with priorities higher than the priority of the present inverter station in the present group send enabling signals.

US Pat. No. 10,218,183

HOUSEHOLD PHOTOVOLTAIC SYSTEM AND SMART MICRO-GRID SYSTEM

BOE TECHNOLOGY GROUP CO.,...

1. A household photovoltaic system, comprising a photovoltaic assembly module, a household photovoltaic inverter and an alternating current (AC) grid, whereinthe household photovoltaic system further comprises a monitoring assembly and a wireless communication assembly;
the monitoring assembly comprises direct current (DC)-side monitoring assemblies each configured to monitor an operating parameter of an output end of the photovoltaic assembly module, and AC-side monitoring assemblies each configured to monitor an operating parameter of an output end of the household photovoltaic inverter; and
the wireless communication assembly comprises a DC-side wireless communication assembly configured to transmit the operating parameter monitored by each DC-side monitoring assembly to a predetermined monitoring terminal, and an AC-side wireless communication assembly configured to transmit the operating parameter monitored by each AC-side monitoring assembly to the predetermined monitoring terminal.

US Pat. No. 10,218,182

PHOTOVOLTAIC SYSTEMS WITH VOLTAGE LIMITING DEVICES

SunPower Corporation, Sa...

1. A photovoltaic system comprising:a plurality of voltage limiting devices that are connected in series;
a plurality of photovoltaic strings, each of the photovoltaic strings comprising series-connected solar cells, wherein a voltage of each of the photovoltaic strings is configured to be clipped or unclipped by a corresponding voltage limiting device; and
a central controller configured to send a synchronization signal to synchronize unclipping of voltages of photovoltaic strings that are clipped by corresponding clipped voltage limiting devices,
wherein the clipped voltage limiting devices are configured to unclip at substantially the same time in synchronization with the synchronization signal.

US Pat. No. 10,218,181

GRID FREQUENCY RESPONSE

Reactive Technologies Lim...

1. A method of determining, in a measurement system, a frequency response characteristic within a synchronous area of an electric power grid, electricity flowing in the grid in accordance with a grid frequency, wherein the electric power grid is connected to a first group of one or more power units each arranged to consume electric power from and/or provide electric power to the electric power grid such that a change in power provision and/or consumption by said first group of one or more power units results in a change in power flow in the electric power grid, wherein power flow to and/or from each of the power units is modulated on the basis of a sequence of control signals, thereby modulating the grid frequency to provide a frequency modulated signal according to the sequence of control signals, the method comprising:measuring, in the measurement system, a frequency characteristic relating to a frequency of electricity flowing in the electric power grid;
accessing a database storing data relating to power characteristics of said one or more power units and determining, on the basis thereof, a characteristic relating to said power flow modulation; and
determining a frequency response characteristic associated with at least one area of said electric power grid on the basis of the measured frequency characteristic and the determined power flow modulation characteristic, wherein the frequency response characteristic relates to an inertia characteristic and/or a stiffness characteristic of the electric power grid.

US Pat. No. 10,218,180

START-UP OF HVDC NETWORKS

GENERAL ELECTRIC TECHNOLO...

14. A control apparatus for controlling a voltage source converter to energise a DC link comprising:a voltage order generating module for generating a voltage order for controlling the voltage source converter to generate a DC voltage on the DC link based on a time varying voltage reference signal; and
a voltage reference module for generating said time varying voltage reference signal, wherein a rate of change of the voltage reference signal varies over time, the time varying voltage reference signal and the rate of change of the voltage reference signal being selected to prevent an overvoltage on the DC link while the DC link is being energized.

US Pat. No. 10,218,179

METHOD AND SYSTEM FOR DYNAMIC INTELLIGENT LOAD BALANCING

The Regents of the Univer...

1. A method for load balancing in a hierarchical power distribution network, the method comprising:connecting a plurality of nodes in a plurality of levels in the hierarchical power distribution network, wherein each of the plurality of nodes in the plurality of levels includes a power meter and phase switches, wherein the phase switches rotate connections of phase contacts for a plurality of phases, wherein one of the plurality of nodes is a root node residing at a highest level in the hierarchy of the power distribution network, wherein the root node is directly connected to a subset of the plurality of nodes in a next lower level of the hierarchy, and wherein subsequent subsets of the plurality of nodes in subsequent lower levels of the hierarchy are directly connected to a previous higher level of the hierarchy;
monitoring power drawn by a plurality of loads in the plurality of phases in the plurality of nodes through the power meters at the plurality of nodes;
rotating the phase switches of the subset of nodes in the lowest level of the hierarchy in the plurality of phases to minimize the difference among the loads of the subset of nodes in the lowest level in each of the plurality of phases; and
repeating the step of rotating for each of the previous higher levels in the hierarchy until the root node is reached to maximize the load balance in the root node.

US Pat. No. 10,218,178

DYNAMIC REACTIVE COMPENSATION

1. A method, comprising:determining, by a computing device, a real power flow at a transformer at a given time;
determining, by the computing device, a reactive power flow at the transformer at the given time;
computing, by the computing device based on the real power and reactive power flow at the transformer, an amount of reactive power adjustment to produce a desired voltage differential across the transformer; and
adjusting, by the computing device, the reactive power flow from a secondary side of the transformer at substantially the given time based on the computed amount;
wherein the transformer is one of a plurality of transformers along a feeder line, and wherein the desired voltage differential across each particular transformer of the plurality of transformers is specifically based on accounting for feeder line impedance between the plurality of transformers along the feeder line, in order to produce substantially the same voltage output on corresponding secondary sides of the plurality of transformers.

US Pat. No. 10,218,177

PLUG-IN DISTRIBUTED ENERGY RESOURCE

SunPower Corporation, Sa...

1. A distributed energy resource (DER) comprising:a plug configured to couple to an AC circuit and receive or deliver AC power from or to the AC circuit;
an energy storage circuit;
one or more controllers;
a program memory storing executable instructions that when executed by the one or more controllers cause the DER to:
determine an amperage difference between a first threshold value and the amperage of an AC power transmitted to a load device plugged into the DER,
determine whether to set the DER to a charge state or a discharge state,
if the DER is set to a charge state, charge the energy storage circuit with AC power received from the AC circuit only if the amperage difference is above a charge threshold value, and
if the DER is set to a discharge state, deliver AC power to the AC circuit by discharging the energy storage circuit.

US Pat. No. 10,218,176

METHOD AND DEVICE FOR CONTROLLING LOCAL VOLTAGE

TSINGHUA UNIVERSITY, Bei...

1. A method for controlling a local voltage, comprising:S1, obtaining a first voltage value of a high-voltage side bus in a local transformer substation;
S2, determining a control strategy according to a starting threshold value for a voltage enhancement control, a starting threshold value for an under-voltage load shedding and the first voltage value of the high-voltage side bus, wherein the starting threshold value for the voltage enhancement control and the starting threshold value for the under-voltage load shedding are predetermined; and
S3, performing the control strategy to control a charging power of an electric vehicle charging station corresponding to the local transformer substation, so as to control the local voltage of the local transformer substation;
wherein if the first voltage value of the high-voltage side bus is less than the starting threshold value for the voltage enhancement control and larger than the starting threshold value for the under-voltage load shedding, performing the control strategy comprises: performing a voltage enhancement control strategy;
if the first voltage value of the high-voltage side bus is less than the starting threshold value for the under-voltage load shedding, performing the control strategy comprises: performing a voltage emergency control strategy;
wherein performing a voltage enhancement control strategy comprises:
S311, obtaining a current electric vehicle charging power of the electric vehicle charging station;
S312, judging whether the electric vehicle charging station has a vehicle-to-grid function;
S313, if the electric vehicle charging station does not have the vehicle-to-grid function, calculating a droop coefficient according to a maximum limit of a local electric vehicle charging load, the starting threshold value for the voltage enhancement control and the starting threshold value for the under-voltage load shedding, and calculating an intercept coefficient according to the droop coefficient and the starting threshold value for the under-voltage load shedding;
S314, if the electric vehicle charging station has the vehicle-to-grid function, calculating the droop coefficient according to the maximum limit of the local electric vehicle charging load, the starting threshold value for the voltage enhancement control, the starting threshold value for the under-voltage load shedding and a minimum limit of an electric vehicle charging power, and calculating the intercept coefficient according to the droop coefficient, the minimum limit of the electric vehicle charging power and the starting threshold value for the under-voltage load shedding;
S315, calculating an allowable upper limit of the current electric vehicle charging power according to the droop coefficient and the intercept coefficient, and calculating an allowable step size of the voltage enhancement control according to the allowable upper limit of the current electric vehicle charging power; and
S316, calculating a setting value of the electric vehicle charging power according to the allowable step size of the voltage enhancement control and the current electric vehicle charging power, and sending the setting value of the electric vehicle charging power to the electric vehicle charging station, such that the electric vehicle charging station charges electric vehicles according to the setting value.

US Pat. No. 10,218,175

DYNAMIC AND INTEGRATED CONTROL OF TOTAL POWER SYSTEM USING DISTRIBUTED IMPEDANCE INJECTION MODULES AND ACTUATOR DEVICES WITHIN AND AT THE EDGE OF THE POWER GRID

Smart Wires Inc., Union ...

1. A high voltage power grid comprising:transmission lines to transport power at high voltage from power generators to sub-stations or other distributed loads;
a plurality of impedance injection modules, each coupled to and collectively distributed along the transmission lines and each having a transmission line current measuring capability and a high-speed communication capability;
a plurality of local intelligence centers, each having a high-speed communication capability, each impedance injection module being in communication with at least one local intelligence center;
a utility supervisory having a communication capability with the power generation, substations and the local intelligence centers;
whereby a hierarchical control capability is established wherein the distributed impedance injection modules will themselves respond locally to tend to reduce local disturbances, one or more local intelligence centers will coordinate a response of a plurality of distributed impedance injection modules and respective distributed impedance injection modules as needed to respond to larger disturbances, and the utility supervisory will balance and control the power grid through control of the substations, local intelligence centers and power generation.

US Pat. No. 10,218,174

METHOD FOR COLLISION MONITORING

Krones AG, Neutraubling ...

1. A method for collision monitoring comprising:dynamically determining a limit value for a measured variable that is indicative of a collision between a movable component of a container handling machine and an additional component or a container for a current period of movement of the movable component on a basis of the measured variable as measured during a preceding period of movement of the movable component, wherein the movable component is a periodically moving, electrically driven component;
determining, for the movable component of the container handling machine, whether the limit value for the measured variable that is indicative of a collision between the movable component and the additional component or the container is exceeded; and
responsive to determining that the limit value is exceeded, prompting a drive of the movable component to be shut down.

US Pat. No. 10,218,173

AC/DC CONVERTER FOR FEEDING NON-LINEAR HIGH-POWER LOADS (E.G. ELECTROLYZERS) WITH REDUCING CURRENT HARMONICS

Javad Jamali, Tehran (IR...

1. A modular alternating current (AC) to direct current (DC) converter system, comprising:a wye transformer, comprising a first set of secondary windings, wherein the first set of secondary windings comprises three secondary windings per each phase of a three-phase AC network;
a first set of three bridge rectifiers, wherein:
each bridge rectifier of the first set of three bridge rectifiers is connected to windings of the first set of secondary windings; and
each bridge rectifier of the first set of three bridge rectifiers supplies a DC current to a respective load;
a delta transformer, comprising a second set of secondary windings, wherein the second set of secondary windings comprises three secondary windings per each phase of the three-phase AC network;
a second set of three bridge rectifiers, wherein:
each bridge rectifier of the second set of three bridge rectifiers is connected to windings of the second set of secondary windings; and
each bridge rectifier of the second set of three bridge rectifiers supplies a DC current to a respective load; and
a controller configured to control each bridge rectifier of the first set of three bridge rectifiers and the second set of three bridge rectifiers in order to:
control a DC current passing through each bridge rectifier of the first set of three bridge rectifiers such that a summation of current harmonics, generated by each bridge rectifier of the first set of three bridge rectifiers, at the wye transformer is reduced; and
control a DC current passing through each bridge rectifier of the second set of three bridge rectifiers such that a summation of current harmonics, generated by each bridge rectifier of the second set of three bridge rectifiers, at the delta transformer is reduced.

US Pat. No. 10,218,171

SURGE PROTECTION CIRCUIT

NXP B.V., San Jose, CA (...

1. A surge protection circuit, comprising:a current conducting unit (MN51) connected between an input terminal and ground;
an amplification circuit including (i) a first transistor (MP51) having a source terminal connected to the input terminal, (ii) a first resistor (R51) connected between a drain terminal of the first transistor and the ground, (iii) a second transistor (MN52) having a source terminal connected to the ground, and (iv) a second resistor (R52) connected between the input terminal and a drain terminal of the second transistor, wherein a gate of the first transistor is connected to the drain terminal of the second transistor and the current conducting unit is connected to the drain terminal of the first transistor;
a voltage lifting circuit including (i) a third transistor (MP52) having a source terminal connected to the input terminal, (ii) a third resistor (R53) connected between the input, terminal and a gate terminal of the third transistor, and (iii) fourth and fifth resistors (R54 and R55) connected in series between a drain terminal of the third transistor and the ground, wherein a gate terminal of the second transistor is connected to a node between the fourth and fifth resistors; and
a DC voltage detection circuit connected between the gate terminal of the first transistor and the ground.