US Pat. No. 11,070,193

ELASTIC WAVE DEVICE, RADIO-FREQUENCY FRONT-END CIRCUIT, AND COMMUNICATION DEVICE

MURATA MANUFACTURING CO.,...


1. An elastic wave device comprising:a piezoelectric material layer;
an IDT electrode disposed on the piezoelectric material layer; and
a dielectric film that covers at least a portion of the IDT electrode; wherein
the IDT electrode includes a first electrode layer and a second electrode layer laminated on the first electrode layer;
each of wavelength normalized film thicknesses of the first and second electrode layers is equal to or greater than about 1.25%, the wavelength normalized film thicknesses of the first and second electrode layers being normalized using a wavelength that corresponds to electrode finger pitch of the IDT electrode;
the second electrode layer has a density lower than a density of the first electrode layer;
a side of the second electrode layer is inclined with respect to a thickness direction of the IDT electrode;
an adhesive layer is disposed between the piezoelectric material layer and the first electrode layer, and/or a diffusion prevention layer is disposed between the first electrode layer and the second electrode layer;
a side of the adhesive layer is slanted with respect to the thickness direction; and
a wavelength normalized film thickness of at least one of the adhesive layer and the diffusion prevention layer is less than about 1.25%, the wavelength normalized film thickness of the at least one of the adhesive layer and the diffusion prevention layer being normalized using the wavelength that corresponds to the electrode finger pitch of the IDT electrode.

US Pat. No. 11,070,192

TORSIONAL MODE QUARTZ CRYSTAL DEVICE

Statek Corporation, Oran...


1. A quartz crystal device configured for temperature sensing, comprising:a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal, wherein each of the tines has formed on one or both of opposing sides thereof a pair of vertically recessed groove structures laterally elongated in the horizontal lengthwise direction, wherein the pair of groove structures are separated in a horizontal widthwise direction by a line structure; and
a first electrode and a second electrode formed on the one or both of the opposing sides of each of the tines and having portions that face each other across the line structure such that, when an electrical bias is applied between the first and second electrodes, the fork-shaped quartz crystal vibrates in a torsional mode in which each of the tines twists about a respective axis extending in the horizontal lengthwise direction.

US Pat. No. 11,070,191

TORSIONAL MODE QUARTZ CRYSTAL DEVICE

Statek Corporation, Oran...


1. A quartz crystal device configured for temperature sensing, comprising:a fork-shaped quartz crystal comprising a pair of elongate tines laterally extending from a base region in a horizontal lengthwise direction of the fork-shaped quartz crystal, wherein each of the tines has formed on one or both of opposing sides thereof a vertically protruding line structure laterally elongated in the horizontal lengthwise direction; and
a first electrode and a second electrode formed on the one or both of the opposing sides of each of the tines and having portions that face each other across the vertically protruding line structure such that, when an electrical bias is applied between the first and second electrodes, the fork-shaped quartz crystal vibrates in a torsional mode in which each of the tines twists about a respective axis extending in the horizontal lengthwise direction.

US Pat. No. 11,070,190

SILVER-BONDED QUARTZ CRYSTAL

Statek Corporation, Oran...


13. A method of packaging a quartz crystal, the method comprising:providing a package substrate; and
bonding a quartz crystal to the package substrate by a plurality of bonding layers and hermetically sealing in the package substrate, wherein bonding the quartz crystal comprises:forming a sintered silver paste bonding layer between the quartz crystal and the package substrate at a first location, wherein the sintered silver paste bonding layer comprises greater than 90% by weight of silver; and
forming an additional bonding layer between the quartz crystal and the package substrate at a second location, the additional bonding layer comprising one or more of an epoxy, a silicon-based elastomer and a polyimide-based material,
wherein the silver paste bonding layer and the additional bonding layer are configured to cause shifts in a resonance frequency of the quartz crystal in opposite frequency directions.


US Pat. No. 11,070,189

JOINT AND ELASTIC WAVE ELEMENT

NGK INSULATORS, LTD., Na...


1. A bonded body comprising:a supporting substrate comprising a polycrystalline ceramic material or a monocrystalline material;
a piezoelectric single crystal substrate; and
a bonding layer provided between said supporting substrate and said piezoelectric single crystal substrate, wherein
said bonding layer has a composition of Si(1-x)Ox, x indicating an oxygen ratio,
the oxygen ratio x at a central part in a thickness direction of said bonding layer is higher than the oxygen ratio x at an end part of said bonding layer on a side of said piezoelectric single crystal substrate and the oxygen ratio x at an end part of said bonding layer on a side of said supporting substrate, and
the oxygen ratio x at said central part in the thickness direction of said bonding layer is 0.013 or higher and 0.666 or lower.

US Pat. No. 11,070,188

IMPEDANCE MATCHING

BAE SYSTEMS PLC, London ...


1. A transceiver comprising:a first impedance matcher configured to match an impedance between a receiver and an antenna, the first impedance matcher comprising a first stub matching circuit and a first phase shifter;
a second impedance matcher configured to match an impedance between a transmitter and the antenna, the second impedance matcher comprising a second stub matching circuit and a second phase shifter; and
a phase shifter controller coupled to the first phase shifter and the second phase shifter, the phase shifter controller being configured to adjust a phase of the first phase shifter or a phase of the second phase shifter using a signal indicative of a channel, wherein the channel is one frequency-spaced channel of a plurality of frequency-spaced channels and is associated with a signal received by the antenna or a signal transmitted by the transmitter.

US Pat. No. 11,070,187

MULTILAYER BAND PASS FILTER

MURATA MANUFACTURING CO.,...


1. A multilayer band pass filter including a multilayer body in which a plurality of dielectric layers including first and second dielectric layers are laminated in a lamination direction, the multilayer band pass filter comprising:a first LC parallel resonator including a first inductor; and
a second LC parallel resonator including a second inductor; wherein
the first inductor includes a first line conductive pattern extending in a first direction on the first dielectric layer and first and second via conductive patterns extending from the first line conductive pattern toward the second dielectric layer; and
the second inductor includes only a third via conductive pattern extending in the lamination direction.

US Pat. No. 11,070,186

ELECTRONIC FILTER INTENDED TO FILTER THE SUPPLY POWER OF AN ELECTRIC MOTOR

Valeo Systemes de Control...


1. An electronic filter for filtering the supply power for electrical equipment, the electronic filter being placed inside a motor vehicle, comprising:a busbar for exchanging electrical energy between an electrical power supply source and an electric machine, the busbar comprising:at least one leadframe configured to transmit an electrical current between an electrical network and the electric machine, the at least one leadframe being partly overmoulded with electrically insulating material,
a connection terminal electrically connected to the at least one leadframe,
a connecting area for electrically connecting an inductor to the at least one leadframe,
the inductor comprising a coil for providing an inductance value and a plurality of pins for connecting to the connecting area, and
a receiving area bounded by a base wall and a circumferential wall protruding from the base wall that are formed by the electrically insulating material, wherein the receiving area receives the coil through an open end of the receiving area such that the plurality of pins penetrates the base wall to contact the connecting area disposed on an opposite side of the base wall; and

an electronic board comprising an electrical trace connected to at least one capacitor, the at least one capacitor being electrically connected using the electrical trace to the connection terminal of the at least one leadframe of the busbar.

US Pat. No. 11,070,185

BULK ACOUSTIC WAVE FILTER AND A METHOD OF FREQUENCY TUNING FOR BULK ACOUSTIC WAVE RESONATOR OF BULK ACOUSTIC WAVE FILTER

WIN SEMICONDUCTORS CORP.,...


1. A method for forming bulk acoustic wave resonators comprising following stepsStep B1: forming a first sacrificial structure mesa and a second sacrificial structure mesa on a substrate, wherein a height of said first sacrificial structure mesa is greater than a height of said second sacrificial structure mesa, wherein said first sacrificial structure mesa and said second sacrificial structure mesa have a height difference;
Step B2: forming an insulating layer on said first sacrificial structure mesa, said second sacrificial structure mesa, and said substrate;
Step B3: polishing said insulating layer by a chemical-mechanical planarization process to form a polished surface, wherein said insulating layer is polished such that a second remain portion of said insulating layer remains above said second sacrificial structure mesa;
Step B4: forming a first bulk acoustic wave resonance structure and a second bulk acoustic wave resonance structure on said polished surface, wherein said first bulk acoustic wave resonance structure and said second bulk acoustic wave resonance structure are located above said first sacrificial structure mesa and said second sacrificial structure mesa respectively, wherein said Step B4 comprises following steps of:Step B41: forming a bottom electrode layer on said polished surface;
Step B42: forming a piezoelectric layer on said bottom electrode layer; and
Step B43: forming a top electrode layer on said piezoelectric layer; and

Step B5: etching said first sacrificial structure mesa and said second sacrificial structure mesa to form a first cavity and a second cavity respectively, wherein said first cavity is located under said first bulk acoustic wave resonance structure and said second cavity is located under said second bulk acoustic wave resonance structure, wherein said second remain portion of said insulating layer is located under said second bulk acoustic wave resonance structure and serves as a second frequency tuning structure of said second bulk acoustic wave resonance structure.

US Pat. No. 11,070,184

PIEZOELECTRIC ACOUSTIC RESONATOR MANUFACTURED WITH PIEZOELECTRIC THIN FILM TRANSFER PROCESS

Akoustis, Inc., Huntersv...


1. A method for fabricating an acoustic resonator device, the method comprising:forming a piezoelectric film overlying a growth substrate;
forming a first electrode overlying the piezoelectric film;
forming a first passivation layer overlying the first electrode and the piezoelectric film;
forming a support layer overlying the first passivation layer, the first electrode, and the piezoelectric film thereby forming a device on the growth substrate;
polishing the support layer;
etching the support layer to form an air cavity;
forming a bonding support layer overlying a bond substrate;
flipping the device on the growth substrate and bonding the polished support layer to the bonding support layer with the air cavity between the device on the growth substrate and the bonding support layer thereby forming a bonded device;
removing the growth substrate from the bonded device;
forming an electrode contact via within the piezoelectric film overlying the first electrode on the bonded device;
forming a second electrode layer overlying the piezoelectric film and within the contact via;
etching the second electrode layer to form a top metal separated from a second electrode, wherein the top metal is physically coupled to the first electrode through the electrode contact via and the second electrode is overlying the piezoelectric film;
forming a first contact metal overlying the second electrode and the piezoelectric film;
forming a second contact metal overlying the top metal and the piezoelectric film; and
forming a second passivation layer overlying the piezoelectric film, the second electrode, and the top metal.

US Pat. No. 11,070,183

SYSTEMS, APPARATUS AND METHODS FOR DYNAMIC RANGE ENHANCEMENT OF AUDIO SIGNALS

Cirrus Logic, Inc., Aust...


1. An apparatus for providing an output signal to an audio transducer, comprising:one or more signal paths for receiving respective digital audio input signals, applying respective digital gains, and outputting respective amplified digital audio input signals;
one or more inputs for receiving one or more volume parameters associated with the digital audio input signals;
converter circuitry, coupled to the one or more signal paths, for converting the one or more amplified digital audio input signals into the analogue domain, and outputting an analogue audio input signal;
an analogue gain element, for applying an analogue gain to the analogue audio input signal and outputting the output signal; and
a control circuit, coupled to the one or more signal paths, operative to select the analogue gain based on a comparison of the volume parameters and the one or more digital audio input signals as multiplied by the volume parameters, and to select the respective digital gains for each digital audio input signal so that an overall gain in the respective signal path corresponds to a volume parameter associated with the respective digital audio input signal.

US Pat. No. 11,070,182

IMAGE SENSOR AND OPERATING METHOD THEREOF

SAMSUNG ELECTRONICS CO., ...


1. An image sensor comprising:a pixel array comprising a plurality of pixels;
a ramp signal generator configured to generate a first ramp signal;
a buffer comprising:an amplifier, and configured to output a second ramp signal obtained by buffering the first ramp signal; and
an input circuit configured to receive the first ramp signal and provide a voltage obtained by adding a biasing voltage to the first ramp signal, as an input signal to the amplifier,
wherein the input circuit comprises:a capacitor configured to receive the first ramp signal through one end of the capacitor, the other end of the capacitor being connected to an input node of the amplifier; and
a switch coupled to the input node and a first node of the amplifier; and


an analog-to-digital conversion circuit configured to compare a pixel signal output from the pixel array with the second ramp signal and convert the pixel signal to a pixel value.

US Pat. No. 11,070,181

PUSH-PULL OUTPUT DRIVER AND OPERATIONAL AMPLIFIER USING SAME

MACRONIX INTERNATIONAL CO...


1. A voltage driver circuit, comprising:a level shifter having an input node, which generates a node voltage as a function of an input voltage on the input node; and
an output driver including a first transistor having a control terminal receiving the node voltage, and connected between a supply voltage and an output node, and a second transistor having a control terminal receiving the input voltage from the input node, and connected between the output node and a reference voltage, wherein the first and second transistors have a common conductivity type; wherein the level shifter includes a bias current source and a third transistor connected in series between the supply voltage and the reference voltage, the third transistor having a control terminal receiving the input voltage from the input node.

US Pat. No. 11,070,180

CLASS AB BUFFER WITH MULTIPLE OUTPUT STAGES

Texas Instruments Incorpo...


1. A class AB buffer, comprising:an output stage, comprising:a first output transistor;
a second output transistor coupled to the first output transistor; and

an input stage coupled to the output stage, and comprising:a first cascode transistor;
a first switch coupled to the first cascode transistor and the first output transistor;
a second cascode transistor;
a second switch coupled to the first switch, the second cascode transistor, and the first output transistor;
a third cascode transistor;
a third switch coupled to the third cascode transistor and the second output transistor;
a fourth cascode transistor; and
a fourth switch coupled to the third switch, the fourth cascode transistor, and the second output transistor.


US Pat. No. 11,070,179

APPARATUS AND METHOD FOR MEASURING SPEAKER TRANSDUCER IMPEDANCE VERSUS FREQUENCY WITH ULTRALOW INAUDIBLE SIGNAL

Cirrus Logic, Inc., Aust...


1. A method for measuring an impedance of a speaker, comprising:converting a known digital input signal to a first analog voltage signal in an audio frequency band;
attenuating the first analog voltage signal using a known resistance to generate a current, wherein the known resistance is high relative to the speaker impedance so that the known resistance effectively determines the current;
sourcing the current into the speaker to generate a second analog voltage signal, wherein the known resistance is sufficiently high to cause the second analog voltage signal to be inaudible as transduced by the speaker;
amplifying the second analog voltage signal with a known gain to generate a third analog voltage signal;
converting the third analog voltage signal to a digital output signal; and
calculating the impedance of the speaker proportional to the digital output signal based on the known digital input signal, the known resistance, and the known gain.

US Pat. No. 11,070,178

CLASS D POWER AMPLIFIER

ELITE SEMICONDUCTOR MEMOR...


1. A class D power amplifier, comprising:an input stage configured to receive a first power supply voltage;
a periodic signal generator configured to generate a periodic signal and a reference signal;
a comparison unit configured to compare an output voltage of the input stage with the periodic signal to generate a first comparison result;
a power output stage configured to receive a second power supply voltage and receive the first comparison result to generate a pulse width modulation signal; and
a boost circuit configured to compare the output voltage of the input stage with the reference signal to adjust the voltage level of the second power supply voltage;
wherein the voltage level of the second power supply voltage is larger than that of the first power supply voltage; and
wherein the reference signal is proportional to the amplitude of the periodic signal, and the amplitude of the periodic signal is determined by the voltage level of the second power supply voltage.

US Pat. No. 11,070,177

MINIMIZING CROSSOVER DISTORTION IN A CLASS B CURRENT DRIVER

Cirrus Logic, inc., Aust...


1. A system comprising:an output stage comprising a single-ended driver for driving a load at an output of the output stage;
a loop filter coupled at its input to the output of the output stage and configured to minimize an error between a target current signal received by the loop filter and an output current driven on the load; and
control circuitry configured to, when the load current is driven in a manner such that the load current changes polarity, reset a state variable of the loop filter.

US Pat. No. 11,070,176

AMPLIFIER LINEARIZATION AND RELATED APPARATUS THEREOF

MEDIATEK Singapore Pte. L...


1. A device, comprising:an amplifier; and
a linearizer comprising a first transistor, the first transistor comprising:a first terminal coupled to an input of the amplifier;
a second terminal configured to receive a DC supply voltage transferred to the second terminal from a DC power supply; and
a control terminal configured to control a current flowing between the first and second terminals and configured to receive a DC bias voltage different from a voltage of the first terminal, wherein the DC bias voltage is selectable from among a plurality of DC bias voltages.


US Pat. No. 11,070,175

POWER AMPLIFICATION MODULE

MURATA MANUFACTURING CO.,...


1. A power amplification module comprising:a first bipolar transistor, wherein an amplified signal is output from a collector of the first bipolar transistor when a radio frequency signal is input to a base of the first bipolar transistor, the amplified signal being obtained by amplifying the radio frequency signal;
a second bipolar transistor that is thermally coupled with the first bipolar transistor, wherein the second bipolar transistor is configured to imitate operation of the first bipolar transistor when the radio frequency signal is input to a base of the second bipolar transistor;
a first resistor having a first terminal to which a second control voltage is supplied, and a second terminal connected to a collector of the second bipolar transistor and at which a third control voltage is generated, the third control voltage corresponding to a collector current of the second bipolar transistor; and
a fourth bipolar transistor configured to output a second bias current from an emitter of the fourth bipolar transistor to the base of the first bipolar transistor and to the base of the second bipolar transistor, when a power supply voltage is supplied to a collector of the fourth bipolar transistor and the third control voltage is supplied to a base of the fourth bipolar transistor.

US Pat. No. 11,070,174

QUADRATURE COMBINED DOHERTY AMPLIFIERS

Skyworks Solutions, Inc.,...


1. A radio frequency system comprising:a separator configured to separate a radio frequency input signal into a first separated signal component and a second separated signal component, to separate the first separated signal component into a first pair of input signal components, and to separate the second separated signal component into a second pair of input signal components having a quadrature phase relationship with respect to the first pair of input signal components;
a first Doherty amplifier configured to generate a first pair of amplified signal components based on amplifying the first pair of radio frequency input signal components;
a second Doherty amplifier configured to generate a second pair of amplified signal components based on amplifying the second pair of input signal components; and
a combiner configured to generate a radio frequency output signal based the first pair of amplified signal components and the second pair of amplified signal components, the combiner including first and second conductive coils at least partially overlaid with respect to one another to provide inductive coupling.

US Pat. No. 11,070,173

WIDE BAND DOHERTY POWER AMPLIFIER

Honeywell International I...


1. A wideband power amplifier configured to be coupled to a load having an impedance ZL, where the wideband power amplifier comprises:a quadrature coupler, implemented with lumped element impedance transformation circuitry, comprising an input, a first output, and a second output;
a carrier amplifier comprising an input and an output, where the input of the carrier amplifier is coupled to the first output of the quadrature coupler;
a peak amplifier comprising an input and an output, where the input of the peak amplifier is coupled to the second output of the quadrature coupler;
wherein the carrier amplifier saturates at an input power level lower than an input power level at which the peak amplifier saturates;
wherein each of the carrier amplifier and the peak amplifier has a termination impedance of approximately Ropt, where Ropt is the optimum impedance at which the carrier amplifier and the peak amplifier will deliver rated maximum powers;
a quarter wave transmission line impedance inverter, implemented with lumped element impedance transformation circuitry, comprising an input and an output, and having a characteristic impedance of 2*Ropt, wherein the input of the quarter wave transmission line impedance inverter is coupled to the output of the carrier amplifier;
an impedance transformer, implemented with lumped element impedance transformation circuitry, comprising an input and an output, and where the input of the impedance transformer is coupled to the output of the peak amplifier and the output of the quarter wave transmission line impedance inverter;
wherein the impedance transformer is configured transform a load impedance ZL to 2*Ropt;
wherein a change in a phase shift over frequency of the impedance transformer is cancelled by a corresponding opposite change in phase shift of the quadrature coupler over at least a bandwidth, of fifteen percent or more of a center frequency, about the center frequency; and
wherein the quadrature coupler comprises:a first capacitor comprising a first port and a second port;
a second capacitor comprising a first port and a second port;
wherein the second port of the first capacitor and the second port of the second capacitor are coupled and form an input of the quadrature coupler;
a third capacitor comprising a first port and a second port;
a fourth capacitor comprising a first port and a second port;
a first inductor comprising a first port and a second port;
a second inductor comprising a first port and a second port;
wherein the first port of the first capacitor and the first port of the third capacitor are coupled to the first port of the first inductor;
wherein the first port of the second capacitor and a first port of the fourth capacitor are coupled to the first port of the second inductor;
a first resistor comprising a first port and a second port, where the first port of the first resistor is coupled to the second port of the third capacitor to form a first output of the quadrature coupler, and the second port of the first resistor is coupled to the second port of the fourth capacitor;
a fifth capacitor comprising a first port and a second port;
a sixth capacitor comprising a first port and a second port;
a third inductor comprising a first port and a second port, where the first port of the third inductor is coupled to the first port of the fifth capacitor, the second port of the fourth capacitor, and the second port of the first resistor;
wherein the second port of the fifth capacitor is coupled to the second port of the sixth capacitor;
wherein the second port of the fifth capacitor and the second port of the sixth capacitor are coupled to a ground terminal; and
wherein the second port of the third inductor is coupled to the first port of the sixth capacitor to form a second output of the quadrature coupler.


US Pat. No. 11,070,172

METHOD AND DEVICE FOR REDUCING POWER CONSUMPTION OF PA

Huawei Technologies Co., ...


11. A device for reducing power consumption of a power amplifier (PA), wherein the device for reducing the power consumption of the PA comprises a processor, a memory, and a communications interface, whereinthe memory is configured to store a computer executable instruction, the processor, the communications interface, and the memory are connected by using a bus, and when the device for reducing the power consumption of the PA is run, the processor executes the computer executable instruction stored in the memory, the device for reducing the power consumption of the PA is enabled to perform operations comprising:
receiving, by the device, a first link status indication from a station B, wherein the first link status indication comprises a parameter of a status of a link from the device to the station B; and
in response to the parameter comprised in the first link status indication being greater than a first threshold, decreasing, by the device, a drain voltage of the PA, to reduce the power consumption of the PA.

US Pat. No. 11,070,171

APPARATUS AND METHODS FOR BIASING OF POWER AMPLIFIERS

Skyworks Solutions, Inc.,...


1. A mobile device comprising:a transceiver configured to generate a radio frequency input signal;
a front end system including a power amplifier configured to receive the radio frequency input signal and to output a radio frequency output signal, the power amplifier including a power amplifier transistor configured to amplify the radio frequency input signal and a bias network configured to bias an input of the power amplifier transistor with a DC bias voltage, the bias network having a reactance operable to flatten a phase response of the power amplifier, the power amplifier transistor includes a plurality of transistor elements operating in parallel with one another, and the bias network includes a plurality of resistors and a plurality of capacitors, each of the plurality of resistors connected in parallel with a corresponding one of the plurality of capacitors between the DC bias voltage and an input to a corresponding one of the plurality of transistor elements; and
an antenna configured to wirelessly transmit the radio frequency output signal.

US Pat. No. 11,070,170

OSCILLATOR CIRCUIT ARRANGEMENT

ams AG, Premstaetten (AT...


1. An oscillator circuit arrangement, comprising:an inverter having an input terminal and an output terminal to be connected to a crystal device and having a supply terminal;
an automatic gain control device connected to the output terminal of the inverter and connected to a controllable current source that is connected to the supply terminal of the inverter; and
a first diode device and a second diode device having different orientation and connected between the input and the output of the inverter,
wherein the first diode device has a gate terminal and a drain terminal that are connected with each other and are connected to the input of the inverter and has a source terminal that is connected to the output of the inverter.

US Pat. No. 11,070,169

VIBRATION ELEMENT AND OSCILLATOR

Seiko Epson Corporation


1. A vibration element comprising:a quartz crystal substrate having a first vibration part and a second vibration part;
a pair of first excitation electrodes formed at two main surfaces of the quartz crystal substrate, at the first vibration part; and
a pair of second excitation electrodes formed in such a way as to sandwich the second vibration part in a direction of thickness of the quartz crystal substrate, at the second vibration part, wherein
at least one second excitation electrode of the pair of second excitation electrodes is formed at an inclined surface inclined to the two main surfaces, and
the first vibration part and the second vibration part have different frequency-temperature characteristics from each other.

US Pat. No. 11,070,168

OSCILLATOR CIRCUIT

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


1. An oscillator circuit comprising:a variable-frequency oscillator structured to generate an oscillator clock having a frequency that corresponds to a control signal;
a programmable frequency divider structured to divide the oscillator clock so as to generate a divided clock;
a F/V (frequency/voltage) converter circuit comprising a capacitor and a switch structured to switch at a frequency that corresponds to the divided clock, and structured to generate a detection voltage that corresponds to a reference current;
a reference voltage source comprising a resistor, and structured to output a reference voltage that corresponds to an electric potential that occurs across the resistor due to the reference current;
a feedback circuit having low-pass filter characteristics that adjusts the control signal such that the detection voltage approaches the reference voltage;
a temperature sensor structured to detect a temperature; and
a correction circuit structured to change a frequency-dividing ratio to be set for the programmable frequency divider, based on a modulation signal modulated according to a correction coefficient that corresponds to the temperature.

US Pat. No. 11,070,167

SYSTEMS AND METHODS FOR REWORKING SHINGLED SOLAR CELL MODULES

SunPower Corporation, Sa...


1. An apparatus comprising:a first super cell and a second super cell physically arranged in parallel rows;
each super cell comprising a plurality of solar cells arranged with sides of adjacent solar cells overlapping in a shingled manner and conductively bonded to each other in series;
the first super cell comprising a defective solar cell that is bonded to two adjacent solar cells in the first super cell; and
a bypass conductor electrically connecting a contact pad on the defective solar cell in the first super cell to a contact pad of a solar cell in the second super cell providing an electrically conductive path between these two solar cells, the electrically conductive path not comprising a bypass diode.

US Pat. No. 11,070,166

ADJUSTABLE MOUNTING DEVICE

ENERGY CONSULTANTS GROUP,...


1. An adjustable mounting device, comprising:a baseplate comprising a top face, a bottom face, a plurality of holes, a through hole, and a recess having a larger dimension than the through hole, the recess formed in the bottom face;
a bracket comprising a horizontal element, a vertical element, and a plurality of holes;
a headed rod having a head portion coupled to the baseplate by being received within the recess in the bottom face such that the head portion is flush with the bottom face, a rod portion coupled to the bracket, and a screw thread;
an elevating nut threaded on the screw thread of the headed rod; and
a locking nut threaded on the screw thread of the headed rod;
wherein the baseplate comprises a fitted hole for retaining the head portion between the top and bottom faces of the baseplate;
wherein the headed rod is configured to provide an adjustable spaced distance between the baseplate and bracket,
wherein the elevating nut is threaded onto the headed rod between the baseplate and the bracket, and forced against a bottom face of the bracket's horizontal element,
wherein the locking nut is threaded onto the headed rod between the baseplate and bracket and forced against the top face of the baseplate in order to rigidly hold the headed rod in a desired orientation with respect to the baseplate, and
wherein the headed rod comprises a free portion between the locking nut and the elevating nut, and wherein adjustment to the elevating nut results in a change to the adjustable spaced distance between the baseplate and the bracket.

US Pat. No. 11,070,165

AUTONOMOUS AND MOVABLE DEVICE FOR GENERATING, STORING AND DISTRIBUTING ELECTRICAL POWER TO DEDICATED MOVABLE BATTERIES

SOLARPLEXUS, Saint Benoi...


1. An autonomous device for generation, storage and distribution of electrical power, wherein the device comprises:at least one supporting element,
means for generating electrical power, resting on the at least one supporting element,
the supporting element enclosing means for internal storage of the electrical power generated by the generation means, the supporting element also enclosing means for converting signals from the generation means into signals capable of supplying power to the electrical power storage means,
at least one electrical connector for connecting the device to external electrical power storage devices, and
electronic telecommunications means,
wherein the supporting element also incorporates a controlling system comprising means for managing storage and distribution of the electrical power generated by the generation means connected to sensors provided on a plurality of components of the device for measuring operating parameters, the controlling system comprising means for identification of the external electrical power storage devices, and
wherein the external electrical power storage devices are movable batteries forming an integral part of the device, wherein each of the movable batteries includes an identifier capable of being identified by the means for identification of the controlling system, the controlling system being capable of authorizing or refusing charging of the movable batteries, the movable batteries being the only load capable of being charged by the at least one electrical connector.

US Pat. No. 11,070,164

POWER TOOL AND CONTROL METHOD OF THE SAME

Nanjing Chervon Industry ...


1. A power tool, comprising:a functional component for realizing a function of the power tool;
a motor for driving the functional component, the motor having a plurality of windings;
a power supply module configured to provide a power supply current, the power supply module comprising a first power terminal and a second power terminal;
a drive circuit electrically connected to the motor, the drive circuit comprising:a first drive terminal electrically connected with the first power terminal;
a second drive terminal electrically connected with the second power terminal;
a plurality of high-side switches wherein high-side terminals of the plurality of high-side switches are respectively electrically connected to the first drive terminal;
a plurality of low-side switches wherein low-side terminals of the plurality of low-side switches are respectively electrically connected to the second drive terminal; and

a controller configured to:output a first control signal to a one of the plurality of high-side switches to place the one of the plurality of high-side switches in an on state or an off state; and
output a second control signal to a one of the plurality of low-side switches to place the one of the plurality of low-side switches in the other of the on state and the off state;

wherein the low-side terminal of the one of the plurality of high-side switches is connected to the high-side terminal of the one of the plurality of low-side switches, and
wherein an interval between a falling edge of the first control signal and a rising edge of the second control signal is a first preset duration.

US Pat. No. 11,070,163

DRIVING POWER SUPPLY DEVICE

AISIN AW CO., LTD., Anjo...


1. A driving power supply device that supplies electric power to a plurality of drive circuits that individually drive a plurality of switching elements included in an inverter that converts electric power between direct current and alternating current of a plurality of phases, the driving power supply device comprising:a plurality of transformers each including a primary-side coil and a secondary-side coil coupled to the primary-side coil in an electrically isolated state, the secondary-side coils being individually connected to the respective corresponding drive circuits;
a plurality of transformer driving units each including a driving switching element that is connected to a corresponding one of the primary-side coils and controls supply of electric power to the corresponding one of the primary-side coils; and
a power supply control device that provides transformer drive signals for driving the transformer driving units,
wherein
the power supply control device drives the transformer driving units by the transformer drive signals having different phases.

US Pat. No. 11,070,162

AC/DC POWER TOOL


1. A power tool comprising:a housing;
a multi-phase brushless motor including a rotor and a stator having a plurality of stator windings corresponding to at least three phases of the motor, the rotor being moveable by the stator;
a power switch circuit comprising a plurality of high-side power switches and a plurality of low-side power switches configured as a multi-phase inverter circuit for driving the phases of the motor, the power switch circuit outputting at least three phase voltage signals to the motor;
a power supply interface having a first set of nodes configured to receive alternating-current (AC) power from an AC power supply having a root-mean-square (RMS) voltage value and a second set of nodes configured to receive battery direct-current (DC) power from one or more battery packs together outputting at a nominal voltage;
a rectifier coupled to the first set of nodes of the power supply interface configured to convert the AC power to a rectified DC voltage and output the rectified DC voltage on a bus line;
a capacitor disposed across the bus line parallel to the rectifier such that, when powered by the AC power supply, within each full cycle of the AC power voltage waveform, the power switch circuit draws current from the AC power supply within a first time period and from the capacitor within a second time period, the capacitor having a capacitance value such that the first time period is greater than the second time period but an average voltage of the rectified DC voltage on the bus line is smaller than the RMS voltage of the AC power; and
a controller outputting a plurality of drive signals to the power switch circuit to control a supply of power to the motor from one of the AC power supply and the one or more battery packs; whereinthe second set of nodes of the power supply interface is coupled to the bus line such that the power switch circuit receives one of the battery DC power or the rectified AC power via the bus line, wherein
the motor operates at an operating voltage that is approximately equal to or smaller than the RMS voltage of the AC power supply such that the rectified DC voltage is supplied to the phases of the motor at its average voltage when the motor is operating at full speed, wherein
the operating voltage of the motor is greater than the nominal voltage of the DC battery power, wherein
each phase is associated with a conduction band (CB) within which the controller outputs the drive signals to corresponding high-side and low-side power switches to energize the corresponding stator windings, wherein
the controller is configured to set the conduction band for each phase to a first CB value when receiving power from the AC power supply and to a second CB value that is less that the first CB value when receiving power from the one or more battery packs to obtain substantially the same maximum power output from the one or more battery packs as the AC power supply.


US Pat. No. 11,070,161

ELECTRIC-MOTOR DRIVING DEVICE AND REFRIGERATION-CYCLE APPLICATION APPARATUS INCLUDING ELECTRIC-MOTOR DRIVING DEVICE

Mitsubishi Electric Corpo...


1. An electric-motor driving device comprising:an inverter connected to terminals connected to windings of an electric motor including the windings, the inverter applying an alternating-current voltage to the electric motor;
switching circuitry being capable of switching a connection state between the terminals, the switching circuitry being connected to the terminals;
a detector to detect at least one of a voltage on an input side of the inverter and an electric current of the inverter; and
processing circuitry to determine, on a basis of a detection value detected by the detector, that an abnormality occurs in the switching circuitry and control the inverter to short-circuit at least two of the terminals.

US Pat. No. 11,070,160

ELECTRIC POWER TOOL

Koki Holdings Co., Lid., ...


1. An electric power tool comprising:a brushless motor having a plurality of stator windings;
a rectifier circuit configured to rectify an AC voltage;
a smoothing capacitor connected to the rectifier circuit and configured to smooth the AC voltage rectified by the rectifier circuit to a pulsation voltage and to output the pulsation voltage and a motor-current;
an inverter circuit connected to the smoothing capacitor and the brushless motor, the inverter circuit being configured to perform switching operations to output the pulsation voltage and the motor-current to the plurality of stator windings by rotation;
an end tool configured to be driven in accordance with the rotation of the brushless motor;
a motor-current detecting circuit configured to detect the motor-current flowing through the brushless motor; and
an arithmetic section connected to the inverter circuit and the motor-current detecting circuit, the arithmetic section being configured to control the inverter circuit, whereinthe smoothing capacitor has a capacitance value so that each of the pulsation voltage and the motor-current includes ripples, each ripple included in the motor-current having a variable peak which is variable in accordance with a variable load applied to the brushless motor, and wherein
the arithmetic section is configured to control the inverter circuit to restrain the variable peak of the ripples included in the motor-current such that the variable peak is variable in a range where the variable peak does not exceed a target current, and wherein
the arithmetic section is configured to control the inverter circuit to restrain the variable peak of the ripples included in the motor-current such that the variable peak is variable in a range where the variable peak does not exceed a target current, and wherein
the arithmetic section is configured to:set the target current to a first current value while the rotational speed of the brushless motor is a first speed value, and
set the target current to a second current value smaller than the first current value while the rotational speed of the brushless motor is a second speed value lower than the first speed value.



US Pat. No. 11,070,159

MULTI LANE MOTORS

ZF Automotive UK Limited


1. A motor apparatus comprising:a permanent magnet synchronous motor circuit having a plurality of lanes, each lane comprising a plurality of unbalanced phases,
a current demand circuit which receives a torque demand signal having a value equal to a torque that is to be generated by the motor apparatus and generates a respective current demand signal for each lane indicative of a current to be applied to each phase of the lane to achieve a torque indicated by the torque that is to be generated,
a first drive circuit which comprises a plurality of switches which selectively connect the phases of a first of the plurality of lanes to a supply such that PWM modulated currents flow in each of the phases that correspond to the current corresponding to the respective current demand signal,
a second drive circuit which comprises a plurality of switches which selectively connect the phases of a second of the plurality of lanes to a supply such that the PWM modulated currents flow in each of the phases that correspond to the demanded current,
wherein the current demand circuit is configured to modify one or both of the current demand signals such that one or both lanes additionally generate a set of radial forces that are applied to a rotor of the motor that do not net to zero, and
wherein the current demand circuit is configured to receive a modulated radial force demand signal that causes the current demand circuit to modify the current demand signals such that the rotor vibrates in a range of 10 Hz to 1 kHz.

US Pat. No. 11,070,158

ROTARY ELECTRIC MACHINE CONTROL APPARATUS

DENSO CORPORATION, Kariy...


1. A rotary electric machine control apparatus that controls energization of a rotary electric machine having a plurality of winding sets, comprising:an energization control circuit that is provided for each of the winding sets and has a switching element related to switching of energization of each coil of the plurality of winding sets;
a driver circuit for each winding set that outputs a drive signal to each respective switching element of a respective winding set through a signal line connected to each respective switching element; and
a protection element that is connected to the signal line of each respective switching element and in parallel with the switching element, wherein
for a state in which combinations of the plurality of winding sets and electronic components including the energization control circuit provided for each of the winding sets are regarded as systems, in at least one of the systems, performance of protection elements of winding sets of the at least one of the systems are differentiated from those in the other system to make noise resistance different from noise resistance in the other system, and
the rotary electric machine control apparatus further comprising:a master control unit that generates a command value related to all the systems and outputs a control signal for controlling on/off operations of the switching element in an own system to the driver circuit in the own system; and
at least one slave control unit that, based on the command value transmitted from the master control unit, generates a control signal for controlling on/off operations of the switching element in an own system and outputs the same to the driver circuit in the own system, wherein
for a state in which a system including the master control unit is regarded as a master system and a system including the at least one slave control unit is regarded as a slave system, noise resistance of the master system is higher than noise resistance of the slave system.


US Pat. No. 11,070,157

MOTOR DRIVE UNIT, COMPRESSOR, AND AIR CONDITIONER

Mitsubishi Electric Corpo...


1. An electric motor drive unit comprising:a winding switching circuit to switch a configuration of windings of an electric motor;
an arithmetic processing unit to generate an instruction signal for the winding switching circuit; and
a winding configuration retention circuit to which the instruction signal generated by the arithmetic processing unit is input, and in a first case in which the input instruction signal has a first value, to output a signal corresponding to the input instruction signal to the winding switching-circuit, and in a second case in which the input instruction signal has a second value different from the first value, to continue outputting a signal that has been output to the winding switching circuit before the reception of the second value, the first value indicating an instruction on the configuration of the windings,
wherein
the instruction signal upon occurrence of a reset in the arithmetic processing unit is caused to have the second value, and
the arithmetic processing unit receives feedback of a signal output from the winding configuration retention circuit to the winding switching circuit, and determines the first value upon changing the instruction signal from the second value to the first value on a basis of the signal that has been fed back.

US Pat. No. 11,070,156

POWER SYSTEM

Honda Motor Co., Ltd., T...


1. A power system, comprising: a high voltage circuit, having a high voltage power source;a low voltage circuit, having a low voltage power source, wherein a used voltage range of the low voltage power source with respect to a closed circuit voltage overlaps with the high voltage power source, and a static voltage of the low voltage power source is lower than the high voltage power source;
a voltage converter, converting a voltage between the high voltage circuit and the low voltage circuit;
a power converter, converting power between the high voltage circuit and a driving motor;
a required power obtaining section, obtaining required power in the driving motor;
a power control section, operating the power converter based on the required power; and
a state obtaining section, obtaining a state of the low voltage power source,
wherein the power control section calculates a limit power, which is an upper limit with respect to output power of the high voltage power source, based on a state of the low voltage power source, and operates the power converter so that the output power of the high voltage power source does not exceed the limit power.

US Pat. No. 11,070,155

INPUT VECTOR SET FOR POSITION DETECTION OF PM MOTORS

TEXAS INSTRUMENTS INCORPO...


1. A motor control system comprising:an analog-to-digital converter (ADC) for receiving N-phase measurements from stator windings;
a processor wherein the processor receives digital values of the N-phase measurements from the ADC; wherein the processor is configured to generate N-dimension voltage vectors from superposition of selected ones of the digital values of the N-phase measurements;
a program memory wherein the program memory includes an angular position determination (APD) algorithm; wherein APD algorithm determines the angular position based on the N-dimension voltage vectors;
a pulse-width modulation (PWM) driver wherein the PWM driver generates a set of input vectors;
an APD controller for controlling a signal generator; wherein the signal generator generates signals for the PWM driver.

US Pat. No. 11,070,154

ENGINE GENERATOR

HONDA MOTOR CO., LTD., T...


1. An engine generator comprising:an engine;
a generator driven by the engine to generate power;
a supply unit configured to supply the power generated by the generator to an external load;
a switch configured to connect or disconnect the generator and the supply unit;
a control unit configured to control the engine in one of a plurality of control states including a power generation state in which the generator and the supply unit are connected by the switch, and an engine speed, an air fuel ratio, and an advance of an ignition timing are controlled in accordance with the external load, a first standby state in which the generator and the supply unit are connected by the switch, and power is not supplied to the external load, and a second standby state in which the generator and the supply unit are disconnected by the switch;
an acceptance unit configured to accept a switching instruction between the first standby state and the second standby state,
wherein when the acceptance unit accepts a switching instruction from the first standby state to the second standby state, the control unit controls the switch to disconnect the generator and the supply unit, and reduces the engine speed of the engine from an engine speed in the first standby state to an engine speed in the second standby state.

US Pat. No. 11,070,153

LINEAR MOTOR TRACK SYSTEM WITH AUTOMATIC GRAVITY DETECTION

Rockwell Automation Techn...


1. A system for propelling a mover, comprising:a track segment defining a path along which a mover travels, the track segment comprising a drive coil for propelling a mover and a sensor for detecting an orientation of the track segment; and
a controller in communication with the track segment, the controller executing a program stored in a non-transient medium to control power to the drive coil for propelling the mover along the track segment with a force for achieving a motion profile,
wherein the force is compensated by the orientation of the track segment as detected by the sensor.

US Pat. No. 11,070,152

OPTICAL DRIVING MECHANISM

TDK TAIWAN CORP., Yangme...


1. An optical driving mechanism, comprising: a movable portion, configured to connect an optical element; a fixed portion, wherein the movable portion is movable relative to the fixed portion; a first driving assembly, configured to drive the movable portion to move relative to the fixed portion, including: a first magnetic element; and a first coil, corresponding to the first magnetic element; and a control assembly, configured to control the first driving assembly, wherein the control assembly outputs: a first driving signal, which is input to the first coil, configured to drive the movable portion to move relative to the fixed portion; and a first input signal, wherein the first input signal and the first driving signal are simultaneously input to the first coil, the first coil receives the first input signal and outputs a first output signal to the control assembly, after the control assembly receives the first output signal, movement information of the movable portion relative to the fixed portion can be obtained, and the first output signal changes according to the relative position of the first coil and the first magnetic element; wherein the optical driving mechanism does not directly or indirectly use a magnetic sensor or an optical sensor when sensing the movement of the movable portion relative to the fixed portion; wherein the optical driving mechanism does not use additional coils to sense the first coil when sensing the movement of the movable portion relative to the fixed portion, wherein movement information of the movable portion is related to the movement of the first coil from an initial position to a predetermined position relative to the first magnetic element.

US Pat. No. 11,070,151

SYSTEMS AND METHODS FOR CALCULATING MOTOR POSITION, INERTIA AND REST POSITION IN SENSORLESS BRUSHED DC MOTOR CONTROL SYSTEMS

Gentherm Incorporated, N...


14. A system comprising:a motor position determination module configured to:determine a first position of a motor at a first time when power supply to the motor is initially discontinued based on ripples in current supplied to the motor during a first period before the first time; and
predict a second position of the motor at a second time when the motor stops rotating after power supply to the motor is discontinued based on the first position of the motor and a rotational speed of the motor at the first time, wherein the motor position determination module is configured to predict the second position of the motor at a third time that is before the second time when the motor stops rotating; and

a target motor stop position module configured to determine when to discontinue power supply to the motor based on the second position and a target position.

US Pat. No. 11,070,150

NOISE FILTERING METHOD FOR MOTOR, RECORDING MEDIUM THEREOF AND MOTOR CONTROL CIRCUIT

Lite-On Singapore Pte Ltd...


1. A noise filtering method for a motor, the motor rotating according to an operating voltage, wherein the noise filtering method comprises:setting an inspection period and a minimum threshold;
generating a pulse signal according to the operating voltage;
determining whether a time corresponding to each sub-pulse signal in the pulse signal meets the inspection period; and
determining whether a pulse width corresponding to each sub-pulse signal is equal to or greater than the minimum threshold,
wherein the step of determining whether the time corresponding to each sub-pulse signal in the pulse signal meets the inspection period comprises:
calculating a time interval between a rising edge time point corresponding to the sub-pulse signal and another rising edge time point corresponding to a previous valid sub-pulse signal; and
determining that the sub-pulse signal meets the inspection period when the time interval is equal to or greater than the inspection period.

US Pat. No. 11,070,149

SYSTEM FOR CONVERTING ELECTROMAGNETIC RADIATION TO ELECTRICAL ENERGY USING METAMATERIALS

Redwave Energy, Inc., Bo...


1. A system for harvesting electricity from electromagnetic radiation, comprising:a metamaterial that is heated by a heat source and has a surface that is tuned to generate an electric field at a tuned frequency; and
a rectenna, placed over the electric field at a distance to interact with the electric field, that includes:
an antenna element that is configured to resonate at the tuned frequency to generate an electron flow; and
a transfer element that is configured to receive the electron flow and output electricity.

US Pat. No. 11,070,148

TRIBOELECTRIC NANOGENERATOR STRUCTURE, SENSING SYSTEM AND DISINFECTING SYSTEM

NATIONAL TSING HUA UNIVER...


1. A triboelectric nanogenerator structure consisting of an upper electrode layer, a lower triboelectric layer, a lower electrode layer and an electric connecting member, wherein:the upper electrode layer consists of a hybrid gel, wherein the hybrid gel is conductive;
the lower triboelectric layer corresponding to the upper electrode layer has a first surface and a second surface, wherein the first surface faces toward the upper electrode layer;
the lower electrode layer is disposed at the second surface; and
the electric connecting member connects the upper electrode layer to the lower electrode layer, wherein an electron flows from the lower electrode layer to the upper electrode layer or from the upper electrode layer to the lower electrode layer via the electric connecting member;
wherein the first surface of the lower triboelectric layer contacts and separates from the upper electrode layer repeatedly.

US Pat. No. 11,070,147

RESONANT INVERTER APPARATUS

DENSO CORPORATION, Kariy...


1. A resonant inverter apparatus that supplies a high AC voltage to a discharge load, the resonant inverter apparatus comprising:a DC voltage power supply that outputs a DC voltage;
an inverter circuit that converts the outputted DC voltage to an AC voltage by on/off switching of a plurality of switching elements;
a transformer that steps up the converted AC voltage and generates the high AC voltage;
a DC voltage detecting unit that detects a value of the DC voltage that is supplied from the DC voltage power supply to the inverter circuit; and
a control unit that generates a driving pulse for performing the on/off switching of each of the plurality of the switching elements, wherein
the plurality of switching elements include at least one first switching element and at least one second switching element other than the at least one first switching element, and
the control unit includes a phase angle control unit that performs phase angle control of the driving pulse, the phase angle control unit setting a switching phase angle of the second switching element relative to the first switching element that serves as reference, based on a magnitude of the value of the DC voltage, in response to the value of the DC voltage detected by the DC voltage detecting unit being greater than a reference value.

US Pat. No. 11,070,146

EFFICIENT SWITCHING FOR CONVERTER CIRCUIT

Solaredge Technologies Lt...


1. An apparatus comprising:a first switch leg comprising:a first switch, and
a second switch connected in series to the first switch,

a controller configured to:for a first half of a switching cycle, control the first switch and the second switch to be OFF, and
for a second half of the switching cycle, control the first switch to alternate between being ON and being OFF and to control the second switch to be ON.


US Pat. No. 11,070,145

POWER CONVERSION CONTROL METHOD AND POWER CONVERSION CONTROL DEVICE

Nissan Motor Co., Ltd., ...


9. A power conversion control device including a first and a second single-phase or multiphase bridge circuit connected in parallel to a DC power supply and respectively connected to inductive loads; and a control device configured to generate PWM signals that are output to the first bridge circuit and the second bridge circuit,the control device comprising:
a first carrier wave generator configured to generate a first carrier wave for outputting the PWM signal to the first bridge circuit;
a second carrier wave generator configured to generate a second carrier wave with a predetermined phase difference to the first carrier wave; and
a carrier wave switching unit configured to select one of the first carrier wave and the second carrier wave, and based on the carrier wave selected, perform switching control of the carrier wave for outputting the PWM signal to the second bridge circuit,
the carrier wave switching unit comprising:
a pre-switching pulse time calculation unit configured to calculate a pre-switching pulse time being a time from a first conductive state switching timing being a conductive state switching timing of the second bridge circuit immediately before a predetermined carrier wave switching timing, to the carrier wave switching timing; and
a post-switching pulse time calculation unit configured to calculate a post-switching pulse time being a time from the carrier wave switching timing to a second conductive state switching timing being an initial conductive state switching timing after the carrier wave switching timing,
the carrier wave switching unit configured to:
when a conductive state of the second bridge circuit is not switched at the carrier wave switching timing, determine that switching of the carrier wave is disabled when a sum of the pre-switching pulse time and the post-switching pulse time is less than a predetermined pulse time sum threshold value; and
when the conductive state of the second bridge circuit is switched at the carrier wave switching timing, determine that the switching of the carrier wave is disabled when the pre-switching pulse time or the post-switching pulse time is less than a predetermined pulse time threshold value.

US Pat. No. 11,070,144

CONVERTER PROVIDED WITH A CIRCUIT FOR MANAGING ALTERNATING POWER IN AN ALTERNATING PART

SUPERGRID INSTITUTE, Vil...


1. A multilevel modular voltage converter for converting alternating voltage into direct voltage and inversely, comprising:a direct part intended to be connected to a direct electric power supply network;
an alternating part intended to be connected to an alternating electric power network;
a plurality of legs, each leg comprising an upper arm and a lower arm, each arm comprising a plurality of sub-modules controllable individually by a control member specific to each sub-module and each sub-module comprising a capacitor connectable in series in the arm when the control member of the sub-module is in a controlled state, each arm modelled by a modelled voltage source connected to a duty cycle dependent on a number of capacitors placed in series in the arm, the modelled voltage source connected in parallel to a modelled capacitor corresponding to a total capacitance of the arm; and
a control circuit of the converter comprising a computer of an internal command setpoint of the converter by application of a function having an adjustable input parameter,
wherein the control circuit further comprises an energy management circuit configured to deliver an operating power setpoint as a function of the voltage at the terminals of each modelled capacitor, the operating power setpoint being utilised to determine a power setpoint to be transmitted to the alternating electric power supply network, the control circuit being configured to regulate the voltage at the point of connection of the converter to the direct electric power supply network and the voltage at the terminals of each modelled capacitor as a function of the internal command setpoint and of the power setpoint to be transmitted to the alternating electric power supply network.

US Pat. No. 11,070,143

POWER CONVERSION DEVICE WITH SELECTIVE VOLTAGE CONTROL


1. A power conversion device comprising:power conversion circuitry configured to switch on/off a plurality of switching elements during a power conversion process for driving a motor in order to switch each of a plurality of phase voltages to one or more voltages selected from the group consisting of a first voltage, a second voltage higher than the first voltage, and a third voltage higher than the second voltage, wherein a concurrent combination of the second voltage with either of the first voltage or the third voltage results in a low voltage control during the power conversion process, and wherein a concurrent combination of the first voltage with the third voltage results in a high voltage control during the power conversion process; and
control circuitry configured to:identify a power conversion setting associated with a maximum voltage rating of the motor in order to selectively control the power conversion circuitry so as to convert direct current power into alternating current power based on the maximum voltage rating of the motor;
select a first control mode of the power conversion process when the power conversion setting indicates that the maximum voltage rating of the motor is greater than a predetermined threshold value, wherein during the first control mode of the power conversion process the power conversion circuitry is allowed to perform the high voltage control depending on a voltage command of the power conversion circuitry; and
select a second control mode of the power conversion process when the power conversion setting indicates that the maximum voltage rating of the motor is less than the predetermined threshold value, wherein during the second control mode of the power conversion process the power conversion circuitry is prohibited from performing the high voltage control regardless of the voltage command.


US Pat. No. 11,070,142

POWER CONVERSION DEVICE WITH CONTROL OF SWITCHING ELEMENT BASED ON CURRENT DETECTION

Mitsubishi Electric Corpo...


1. A power conversion device comprising:a rectifier to convert an alternating-current voltage to a direct-current voltage;
a capacitor connected in parallel with the rectifier;
a plurality of chopper circuits that is arranged between the rectifier and the capacitor, each of the chopper circuits includinga reactor connected to a positive output terminal of the rectifier,
a first switching element connected in parallel with the rectifier, and
a second switching element connected to a positive terminal of the capacitor at one end and to its corresponding reactor and its corresponding first switching element at another end;

a plurality of first current detectors, each of the first current detectors being associated with a corresponding chopper circuit, each of the first current detectors being connected between its corresponding reactor and a connection point arranged between its corresponding first switching element and its corresponding second switching element, each of the first current detectors bidirectionally detecting a current flowing through its corresponding reactor; anda controller to control an operation of each first switching element by using a detection result from each corresponding first current detector.


US Pat. No. 11,070,141

HYBRID MULTILEVEL INVERTER TOPOLOGY WITH REDUCED SWITCH COUNT AND DC VOLTAGE SOURCES

King Abdulaziz University...


1. A hybrid multilevel inverter, comprising:a level generation module having a first voltage level output, the level generation module including k voltage generation cells, k+1 DC voltage sources, Vdc, and 3k unidirectional switches;
an auxiliary module in series with the level generation module, the auxiliary module including two unidirectional switches and an auxiliary voltage source, Va;
a polarity changing unit in series with the level generation module and the auxiliary module, the polarity changing unit having four unidirectional switches connected to two load terminals and arranged in an H-bridge configuration; and
a controller having circuitry operatively connected to the 3k unidirectional switches located in the level generation module, the two unidirectional switches in the auxiliary module and the four unidirectional switches in the polarity changing unit, wherein the controller has program instructions stored therein that, when executed by one or more processors, cause the one or more processors to perform hybrid modulation,
wherein the controller is configured toapply a first set of k square wave modulation pulses having a first frequency and first bandwidth to each of the 3k unidirectional switches in the level generation module, to generate a first voltage level output, wherein the first voltage level output ranges from one to k+1 times a voltage value of a voltage source, Vdc, within a voltage generation cell;
in a first mode, apply to each of the two unidirectional switches in the auxiliary voltage generation module, a second set of square wave modulation pulses having a variable second frequency and a variable second bandwidth, wherein the second set of square wave modulation pulses places the auxiliary voltage source in series with the first voltage level output, thereby generating an auxiliary module voltage level output which is a sum of the first voltage level output and a voltage level of the auxiliary voltage source;
in a second mode, apply to each of the two unidirectional switches in the auxiliary voltage generation module, a third set of square wave modulation pulses having a variable third frequency and a variable third bandwidth, wherein the third set of square wave modulation pulses bypasses the auxiliary voltage source, generating the auxiliary module voltage level output equal to the first voltage level output;
apply to each of four unidirectional switches in the polarity changing module, a fourth set of square wave modulation pulses which change an operational status of each unidirectional switch of the four unidirectional switches of the polarity changing module to either ON or OFF;
wherein, when a first two diagonally located unidirectional switches of the four unidirectional switches both have an ON status and a second two diagonally located unidirectional switches of the four switches both have an OFF status, a positive auxiliary module voltage level output is applied across the load terminals of the H-bridge;
wherein, when the first two diagonally located unidirectional switches of the four unidirectional switches both have an OFF status and the second two diagonally located unidirectional switches of the four unidirectional switches both have an ON status, a negative auxiliary module voltage level output is applied across load terminals of the H-bridge;
wherein, when two parallel, oppositely opposed, unidirectional switches of the four unidirectional switches both have an ON status or both have an OFF status, the auxiliary module voltage level output applied across the load terminals of the H-bridge is a zero level output: wherein
when Va=Vdc, the number of voltage levels generated across the load terminals of the H-bridge is given by: Nlevels=2(k+1); and
when Va=½ Vdc, the number of voltage levels generated across the load terminals of the H-bridge is given by: Nlevels=4(k+1)+1.


US Pat. No. 11,070,140

LOW INDUCTANCE BUS ASSEMBLY AND POWER CONVERTER APPARATUS INCLUDING THE SAME

Eaton Intelligent Power L...


1. An apparatus comprising:first, second and third core bus plates arranged in a parallel overlapped arrangement;
a first bus extension plate extending from the first core bus plate at a first angle with respect to the first core bus plate;
a second bus extension plate extending from the second core bus plate in a direction away from the first bus extension plate at a second angle with respect to the second core bus plate; and
a third bus extension plate extending from the third core bus plate and disposed parallel to and overlapping the first bus extension plate;
a fourth bus extension plate extending from the third core bus plate and disposed parallel to and overlapping the second bus extension plate;
a first semiconductor switching device electrically connected to and positioned at ends of the first and third bus extension plates;
a second semiconductor switching device electrically connected to and positioned at ends of the second and fourth bus extension plates;
a first capacitor;
a second capacitor;
a fifth bus extension plate joined to the first bus core plate, extending at an angle therefrom and electrically connected to a first terminal of the first capacitor;
a sixth bus extension plate joined to the second bus core plate, extending at an angle therefrom and electrically connected to a first terminal of the second capacitor; and
a common plate parallel to the fifth and sixth bus extension plates and electrically connected to second terminals of the first and second capacitors,
wherein the third bus core plate has a portion extending between the fifth and sixth bus extension plates and through an opening in the common plate.

US Pat. No. 11,070,139

SYSTEMS AND METHODS TO ESTIMATE MAGNETIC FLUX IN A SWITCHED MODE POWER SUPPLY

Illinois Tool Works Inc.,...


1. A welding-type power supply, comprising:a switched mode power supply, comprising:
a transformer configured to transform an input voltage to a welding-type voltage;
a capacitor in series with a primary winding of the transformer; and
switches configured to control a voltage applied to a series combination of the primary winding of the transformer and the capacitor;
a voltage estimator coupled to the transformer and configured to output a signal representative of an alternating-current (AC)-coupled voltage at the capacitor, wherein the voltage estimator comprises an integrator and a filter configured to convert a current measurement to a measurement of the AC-coupled voltage across the capacitor;
a flux accumulator configured to determine a net flux in the transformer based on the voltage applied to the series combination of the primary winding of the transformer and the capacitor; and
a controller configured to control the switches based on the net flux in the transformer and the signal representative of the AC-coupled voltage at the capacitor.

US Pat. No. 11,070,138

SYSTEM FOR CONTROLLING A DIRECT-CURRENT-TO-DIRECT-CURRENT CONVERTER TO PROVIDE ELECTRICAL ENERGY TO A VEHICLE IMPLEMENT


1. A system for controlling a direct-current-to-direct-current converter comprising:a primary converter, the primary converter having primary semiconductor switches;
a primary controller providing control signals to the primary semiconductor switches;
a plurality of secondary converters comprising a first secondary converter and a second secondary converter, the first and second secondary converters coupled in parallel to the primary converter via a set of conductors, each of the first and second secondary converters having secondary semiconductor switches;
a plurality of transformers, each one of the first and second secondary converters associated with a corresponding one of the transformers, each of the transformers comprising a primary winding associated with a primary alternating current signal of the primary converter and a secondary winding associated with a secondary alternating current signal of a corresponding one of the first and second secondary converters;
a plurality of primary sensors, at least one of the primary sensors associated with a corresponding one of the first and second secondary converters, each of the primary sensors configured for measuring or detecting a respective observed reference phase of the corresponding primary alternating current signal transmitted to each one of the first and second secondary converters, each of the primary sensors coupled via an inductance to the corresponding one of the transformers associated with its respective one of the first and second secondary converters; and
a plurality of secondary controllers comprising a first secondary controller and a second secondary controller, the first and second secondary controllers providing secondary control signals to the respective secondary semiconductor switches of the first and second secondary converters with time-synchronized, target phase offsets with respect to the observed reference phase of the primary alternating current signals, to provide the target phase offsets commensurate with or sufficient to support a required electrical energy transfer between the primary controller and at least one of the first and second secondary controllers;
the first secondary controller providing first secondary control signals for a first phase, a second phase and a third phase of first secondary semiconductor switches of the first secondary converter with time-synchronized, target phase offsets with respect to the respective observed reference phase of the first phase, the second phase or the third phase of the primary alternating current signal;
the second secondary controller providing second secondary control signals for a first phase, a second phase and a third phase of second secondary semiconductor switches of the second secondary converter with time-synchronized, target phase offsets with respect to the respective observed reference phase of the first phase, the second phase or the third phase of the primary alternating current signal;
wherein a bi-directional power transfer is supported between the primary converter and each of the first and second secondary converters; and wherein:
a vehicle energy system providing electrical energy to a primary direct current bus of the primary converter, wherein the vehicle energy system comprises:
a generator; and
an internal combustion engine for providing rotational energy to the generator.

US Pat. No. 11,070,137

RESONANT CORE POWER SUPPLY


1. A resonant core power supply comprising:a core having magnetic properties and a controller;
excitation, resonant, and load windings on the core;
the resonant winding galvanically isolated from the load winding;
the excitation winding receiving an excitation signal to cause an excitation flux flow;
the resonant winding connected to a resonant capacitor to form a tank circuit having a constant resonant frequency FRES that equals an excitation signal frequency;
the excitation flux flow passes through the resonant winding to induce a voltage therein;
the excited resonant winding causes a resonant flux flow which resonates with the tank circuit;
the resonant flux flow passes through the load winding to induce a voltage therein and to power an electrical load; and,
sensors including ones that a) sense current through the resonant winding and b) sense voltage across the resonant capacitor;
wherein a) the sensors provide controller feedback to influence phase, amplitude, and waveform of the excitation signal to maintain phase, amplitude, and waveform of the resonant flux flow and b) the core does not saturate.

US Pat. No. 11,070,136

SYSTEM FOR CONTROLLING A DIRECT-CURRENT-TO-DIRECT-CURRENT CONVERTER TO PROVIDE ELECTRICAL ENERGY TO A VEHICLE IMPLEMENT


1. A system for controlling a direct-current-to-direct-current converter comprising:a primary converter, the primary converter having primary semiconductor switches;
a primary controller providing control signals to the primary semiconductor switches;
a plurality of secondary converters comprising a first secondary converter and a second secondary converter, the first and second secondary converters coupled in parallel to the primary converter via a set of conductors, each of the first and second secondary converters having secondary semiconductor switches;
a plurality of transformers, each one of the first and second secondary converters associated with a corresponding one of the transformers, each of the transformers comprising a primary winding associated with a primary alternating current signal of the primary converter and a secondary winding associated with a secondary alternating current signal of a corresponding one of the first and second secondary converters;
a plurality of primary sensors, at least one of the primary sensors associated with a corresponding one of the transformers, each of the primary sensors configured for measuring or detecting a respective observed reference phase of an output phase of the corresponding primary alternating current signal transmitted to one of the first and second secondary converters; and
a plurality of secondary controllers comprising a first secondary controller and a second secondary controller, the first and second secondary controllers providing secondary control signals to the respective secondary semiconductor switches of the first and second secondary converters with time-synchronized, target phase offsets with respect to the observed reference phase of the primary alternating current signals, to provide the target phase offsets commensurate with or sufficient to support a required electrical energy transfer from the primary controller to at least one of the first and second secondary controllers;
the first secondary controller providing first secondary control signals for a first phase, a second phase and a third phase of first secondary semiconductor switches of the first secondary converter with time-synchronized, target phase offsets with respect to the respective observed reference phase of the first phase, the second phase or the third phase of the primary alternating current signal; and
the second secondary controller providing second secondary control signals for a first phase, a second phase and a third phase of second secondary semiconductor switches of the second secondary converter with time-synchronized, target phase offsets with respect to the respective observed reference phase of the first phase, the second phase or the third phase of the primary alternating current signal,
wherein each of the primary sensors comprises a phase detector that is associated with the primary winding or a primary terminal of the corresponding transformer for measuring or detecting the respective observed reference phase of the corresponding primary alternating current signal transmitted to a respective one of the first and second secondary converters.

US Pat. No. 11,070,135

CONVERTER WITH SOFT-START PERIOD OF OUTPUT VOLTAGE

DELTA ELECTRONICS, INC., ...


1. A converter, comprising:an input capacitor configured to receive an input voltage;
a primary-side switch circuit coupled to the input capacitor, comprising:a first bridge arm comprising at least two switches, the at least switches being coupled in series; and
a second bridge arm comprising at least two switches, the at least switches being coupled in series;

a transformer coupled to the primary-side switch circuit;
an inductor coupled to the primary-side switch circuit, wherein the inductor is a leakage inductor of the transformer or an external inductor coupled between the transformer and the primary-side switch circuit;
a secondary-side switch circuit coupled to the transformer; and
an output capacitor coupled to the secondary-side switch circuit;
wherein a soft-start period of an output voltage from the converter comprises a voltage rising period of the output voltage, wherein a turn-on time of one of the at least two switches of the first bridge arm is less than ½ of a switching period, a turn-on time of one of the at least two switches of the second bridge arm is a value selected from zero to 1/100 of the switching period, wherein the inductor and parasitic capacitors of the at least two switches of the second bridge arm oscillate, and energy generated from an oscillation is transmitted to the second-side switch circuit.

US Pat. No. 11,070,134

CONTROL METHOD FOR DC/DC CONVERTER AND DC/DC CONVERTER

DELTA ELECTRONICS (SHANGH...


1. A control method for a DC/DC converter, the DC/DC converter comprising a primary side circuit and a secondary side circuit electrically isolated with each other, wherein the secondary circuit comprises a first secondary side bridge arm consisting of a fifth switch and a sixth switch in series, and a second secondary side bridge arm consisting of a seventh switch and an eighth switch in series, and the first secondary side bridge arm is parallel to the second secondary side bridge arm, the method comprising:providing a primary side driving signal to drive one or more primary side switches of the primary side circuit;
providing a sixth signal, a fifth signal, a seventh signal and an eighth signal, wherein a phase shift angle exists between the sixth signal and the primary side driving signal, and the sixth signal, the fifth signal, the seventh signal and the eighth signal in turn have a predetermined phase difference;
driving the sixth switch, the fifth switch, the seventh switch and the eighth switch according to the sixth signal, the fifth signal, the seventh signal and the eighth signal, respectively;
wherein the switching frequency of the sixth signal, the fifth signal, the seventh signal or the eighth signal is half of the switching frequency of the primary side driving signal.

US Pat. No. 11,070,133

POWER SYSTEM

Honda Motor Co., Ltd., T...


1. A power system, comprising:a high voltage circuit, having a high voltage power source;
a low voltage circuit, having a low voltage power source, wherein a used voltage range of the low voltage power source with respect to a closed circuit voltage overlaps with the high voltage power source, and a static voltage of the low voltage power source is lower than the high voltage power source;
a voltage converter, converting a voltage between the high voltage circuit and the low voltage circuit;
a power converter, converting power between the high voltage circuit and a driving motor;
a passing current obtaining section, obtaining a passing current which is a current flowing through the voltage converter;
a passing current control section, operating the voltage converter so that the passing current becomes a target current; and
a failure determining section, determining failure of the voltage converter based on a difference between the passing current and the target current,
wherein the failure determining section determines that the voltage converter fails in a case where the difference is greater than a predetermined value and the passing current flows from a side of the high voltage circuit to a side of the low voltage circuit.

US Pat. No. 11,070,132

SLOPE COMPENSATION METHOD FOR DC-DC CONVERTER

Analog Devices Internatio...


1. A voltage regulator circuit comprising:a switching circuit configured to adjust a switching duty cycle to produce a regulated output voltage from an input voltage using an error signal representative of a difference between a target voltage value and the output voltage;
a dynamic clamp circuit configured to:convert the input voltage and the output voltage to an input current and an output current;
generate a multiplier using a ratio including the input current and the output current;
produce a maximum clamp voltage using a base clamp voltage and the generated multiplier; and
convert the maximum clamp voltage to a maximum peak inductor current command value; and

a comparison circuit configured to:set a maximum peak inductor current value equal to a difference between the maximum peak inductor current command value and a slope compensation current, wherein the maximum peak inductor current value is constant for different values of output voltage, and the maximum peak inductor current command value varies with the different values of output voltage;
compare a sensed inductor current to a peak inductor current value; and
enable switching of the voltage regulator system according to the comparison.


US Pat. No. 11,070,131

METHODS, APPARATUS AND CIRCUITS TO CONTROL TIMING FOR HYSTERETIC CURRENT-MODE BOOST CONVERTERS

TEXAS INSTRUMENTS INCORPO...


1. A device to control timing of a current-mode boost converter, the device comprising:a first input terminal to receive an input voltage of the current-mode boost converter;
a second input terminal to receive an output voltage of the current-mode boost converter;
a generator to generate a first timing signal from the input voltage and the output voltage, the generator including a transistor having a control terminal, a first current terminal and a second current terminal and the generator further including a capacitor connected between the first current terminal and the second current terminal of the transistor;
a third input terminal to receive a second timing signal from the current-mode boost converter;
a selector to select between the first timing signal and the second timing signal to generate a third timing signal based on a comparison of a first off time duration of the first timing signal and a second off time duration of the second timing signal, the selector including an inverter having an input connected to the second timing signal and the selector operable to output a first control signal;
an output terminal to control off times of the current-mode boost converter based on the third timing signal; and
wherein the control terminal is coupled to the first control signal and the transistor is operable to charge the capacitor in response to the first control signal.

US Pat. No. 11,070,130

SYSTEM AND METHOD FOR RESONANT BUCK REGULATOR

Northwestern University, ...


1. A system, comprising:a buck regulator circuit including a first switch, a second switch, and a load current; and
a resonant tank circuit connected to an input of both the first switch and the second switch of the buck regulator circuit, wherein the resonant tank circuit comprises an inductor, a first capacitor and a second capacitor configured to form the resonant tank circuit to jointly switch both the first switch and the second switch of the buck regulator to reduce a switching power from a switching frequency of the first switch and the second switch, wherein the inductor resonates with a first gate capacitance of the first capacitor and a second gate capacitance of the second capacitor, wherein the switching frequency is at least 2 GHz when the load current is in a range of 10 mA to 40 mA.

US Pat. No. 11,070,129

ULTRA LOW-VOLTAGE CIRCUITS

Oregon State University, ...


1. An apparatus comprising:a first inverter coupled to a first reference node and a second reference node, the first inverter to receive an input and to generate an output which is an inverse of the input;
a second inverter coupled to a first supply node and a second supply node, wherein the second inverter is to receive the input and generate an output which is coupled to the first reference node;
a third inverter coupled to the first supply node and the second supply node, wherein the third inverter is to receive the input and generate an output which is coupled to the second reference node; and
a charge pump coupled to an output of the first inverter to receive a clock from the first inverter.

US Pat. No. 11,070,128

CHARGE PUMP REGULATION CIRCUIT TO INCREASE PROGRAM AND ERASE EFFICIENCY IN NONVOLATILE MEMORY

STMicroelectronics Intern...


1. A circuit, comprising:a charge pump circuit configured to generate a charge pump output signal at a first node, the charge pump circuit being enabled as a function of at least one charge pump control signal;
a diode having a first terminal coupled to the first node and a second terminal coupled to a second node, said diode supplying a reverse current to the second node;
a comparator having a first input coupled to the second node and a second input coupled to a third node, the comparator configured to generate the at least one charge pump control signal; and
a current mirror configured to draw a first current from the second node and apply a second current to the third node.

US Pat. No. 11,070,127

SEMICONDUCTOR DEVICE

FUJI ELECTRIC CO., LTD., ...


1. A semiconductor system comprising:two or more semiconductor devices connected in parallel and configured to be continuously ON/OFF-driven with a common input signal, each semiconductor device including:a control circuit;
a power semiconductor element; and
a gate driving circuit connected between the control circuit and the power semiconductor element, the gate driving circuit further including:a resistor having a resistance value exhibiting a positive temperature characteristic;
a diode having a forward voltage drop exhibiting a negative temperature characteristic; and
a metal-oxide semiconductor (MOS) switch connected to the diode and the resistor,
wherein the resistor and the diode are connected in parallel with each other, and
wherein upon switching ON of the MOS switch, a gate voltage of the power semiconductor element is pulled down to a source potential of the power semiconductor element, to thereby turn OFF the power semiconductor element,


wherein the positive temperature characteristic of the resistor and the negative temperature characteristic of the diode in each of the semiconductor devices are so set as to balance thermal biases and current drains between the two or more semiconductor devices,
wherein in each semiconductor device, the MOS switch is in direct electrical connection with a cathode of the diode, and
wherein the MOS switches of the gate driving circuits of the two or more semiconductor devices are switched ON and OFF in response to a common input signal to the two or more semiconductor devices.

US Pat. No. 11,070,126

POWER SUPPLY CIRCUIT HAVING IMPROVED NOISE SUPPRESSION

PANASONIC INTELLECTUAL PR...


1. A power supply circuit comprising:a first input terminal which is connected to an AC power supply via a rectifying section, the first input terminal directly connected to the rectifying section;
a second input terminal which is connected to an AC power supply via a rectifying section, the second input terminal directly connected to the rectifying section;
a first reactor;
a second reactor;
a first switching element;
a second switching element;
a third switching element;
a fourth switching element;
a first capacitor;
a first output terminal;
a second output terminal;
a control circuit;
a first inductor;
a second inductor; and
a bypass capacitor,
wherein the first input terminal is connected to a first end of the first reactor, a second end of the first reactor is connected to a first end of the third switching element, and a second end of the third switching element is connected to the first output terminal,
the first input terminal is connected to a first end of the second reactor, a second end of the second reactor is connected to a first end of the fourth switching element, and a second end of the fourth switching element is connected to the first output terminal,
the second input terminal is connected to the second output terminal,
a first end of the first switching element is connected to a first connection point on a path linking the second end of the first reactor to the first end of the third switching element, and a second end of the first switching element is connected to the second output terminal,
a first end of the second switching element is connected to a second connection point on a path linking the second end of the second reactor to the first end of the fourth switching element, and a second end of the second switching element is connected to the second output terminal,
a first end of the first capacitor is connected to the first output terminal, and a second end of the first capacitor is connected to the second output terminal,
a first end of the first inductor is directly connected to a path linking the first input terminal to the first connection point, and a second end of the first inductor is directly connected to a first end of the bypass capacitor,
a first end of the second inductor is directly connected to a path linking the first input terminal to the second connection point, and a second end of the second inductor is directly connected to the first end of the bypass capacitor,
a second end of the bypass capacitor is connected to the second output terminal,
the first reactor and the first inductor are magnetically coupled to each other, and the second reactor and the second inductor are magnetically coupled to each other, and
the control circuit performs switching control over the first switching element and the second switching element, using an interleaving method.

US Pat. No. 11,070,125

VOLTAGE REGULATOR HAVING SELF-TEST MODE

Infineon Technologies Aus...


1. A fault-tolerant multiphase voltage regulator, comprising:a plurality of power stages, each of which is configured to deliver a phase current to a processor; and
a controller configured to:control the plurality of power stages to regulate an output voltage provided to the processor;
detect and disable a faulty power stage;
generate a throttling signal to indicate that one or more of the power stages is faulty and disabled;
communicate the throttling signal to the processor over a physical line running between the processor and the controller; and
place the multiphase voltage regulator in a self-test mode in which the processor is operated at a known computational load and the controller operates each power stage independently to determine if any of the power stages is faulty under the known computational load.


US Pat. No. 11,070,124

POWER CONVERSION DEVICE

MITSUBISHI ELECTRIC CORPO...


1. A power conversion device configured to perform power conversion between a DC circuit and an AC circuit, the power conversion device comprising:power conversion circuitry including a plurality of converter cells connected in series to each other,
the converter cells each including an energy storage device and being configured to be capable of discharging stored energy;
a control device configured to generate, at a first interval, control commands for controlling operation of each of the converter cells;
a protection device configured to generate, at a second interval shorter than the first interval protection commands for instructing whether to cause each of the converter cells to operate based on the control command or to stop operation of each of the converter cells regardless of the control commands; and
a repeating device configured to generate, at a third interval shorter than the first interval, control-and-protection commands by combining a latest of the control commands and a latest of the protection commands, and output the generated control-and-protection command to each of the converter cells at the third interval.

US Pat. No. 11,070,123

ENERGY STORAGE AND ENERGY STORAGE DEVICE

THE BOEING COMPAN, Chica...


1. An energy storage device comprising:multiple bulk superconductor rings;
at least one superconductor wire coil between the multiple bulk superconductor rings, the multiple bulk superconductor rings and the at least one superconductor wire coil interconnected to define a closed geometric shape; and
a spacer between two or more bulk superconductor rings of the multiple bulk superconductor rings, wherein the spacer electrically isolates a first bulk superconductor ring of the multiple bulk superconductor rings from a second bulk superconductor ring of the multiple bulk superconductor rings, and wherein the first bulk superconductor ring is configured to induce a magnetic field in the second bulk superconductor ring.

US Pat. No. 11,070,122

MULTI-DEGREE-OF-FREEDOM ELECTROMAGNETIC MACHINE

HONEYWELL INTERNATIONAL I...


1. A multi-degree-of-freedom electromagnetic machine, comprising:a spherical armature having a first axis of symmetry, a second axis of symmetry, a third axis of symmetry, the first, second, and third axes of symmetry disposed perpendicular to each other;
a first coil wound on the spherical armature about the first axis of symmetry;
a second coil wound on the spherical armature about the second axis of symmetry;
a third coil wound on the spherical armature about the third axis of symmetry;
a structure coupled to the spherical armature and extending therefrom along the first axis of symmetry;
a stator spaced apart from, and surrounding at least a portion of, the spherical armature, the stator mounted for rotation about the third axis of symmetry, and including an outer surface, an inner surface, and a plurality of spaced-apart stator coils, each stator coil configured, upon being electrically energized, to generate a magnetic field; and
a bracket rotationally coupled to the outer surface of the stator and rotationally coupled to the structure,
wherein:the spherical armature and the structure are rotatable together, relative to the bracket and the stator, about the first axis of symmetry,
the spherical armature, the structure, and the bracket are rotatable together, relative to the stator, about the second axis of symmetry, and
the spherical armature, the structure, the bracket, and the stator are rotatable together about the third axis of symmetry.


US Pat. No. 11,070,121

VIBRATION GENERATING APPARATUS

JAHWA ELECTRONICS CO., LT...


5. A vibration generating apparatus, comprising:a bracket coupled to a rectangular shaped case to form an inner space;
a stator including a circuit board coupled to an upper surface of the bracket and a permanent magnet fixed to the bracket or the case; and
a vibrator including a coil electrically connected to the circuit board to generate magnetic force corresponding to the permanent magnet and a polygonal weighted body coupled to the coil, and configured to moves up-and-down; and
an elastic member connecting the stator and the vibrator, having a spiral shape and elastically supporting the vibrator,
wherein the weighted body has corners forming a polygonal shape, some of the corners of the weighted body face sides of the case, and the other corners of the weighted body face corners of the case.

US Pat. No. 11,070,120

ACTUATOR

NIDEC SANKYO CORPORATION,...


1. An actuator, comprising:a support;
a movable body;
an elastic member, disposed between the support and the movable body;
a first magnetic drive circuit, comprising:a first coil, held by one side member of the support and the movable body, and
a first magnet, held by other side member of the support and the movable body and opposed to the first coil in a first direction,
the first magnetic drive circuit being configured to generate a driving force for driving the movable body in a second direction orthogonal to the first direction;

a second magnetic drive circuit, comprising:a second coil, held by the one side member, and
a second magnet, held by the other side member and opposed to the second coil in the first direction,
the second magnetic drive circuit being configured to generate a driving force for driving the movable body in a third direction orthogonal to the first direction and crossing the second direction; and

a third magnetic drive circuit, comprising:a third coil, held by the one side member, and
a third magnet, held by the other side member and opposed to the third coil in the first direction,
the third magnetic drive circuit being configured to generate a driving force for driving the movable body in the second direction,

wherein the first magnetic drive circuit, the second magnetic drive circuit and the third magnetic drive circuit are arranged to be sequentially stacked from one side to the other side in the first direction.

US Pat. No. 11,070,119

MANUFACTURING METHOD OF VIBRATING ACTUATOR

Lofelt GmbH, Berlin (DE)...


1. A method for manufacturing a vibrating actuator, comprising:assembling a magnetic part by assembling at least two magnets in a dedicated assembly jig using at least one rod, wherein the at least two magnets face each other with the same polarity and have a gap between them;
assembling a moving part by wrapping at least one coil of self-bonding copper wire around a hollow member c, wherein each end of the hollow member is open and further comprises two slots with the at least one coil located in a longitudinally central part of the hollow member between the two slots;
heating the at least one coil and the hollow member such that the at least one coil becomes solid and binds with the hollow member;
inserting the magnetic part into the moving part;
attaching an elastic material to longitudinally outer ends of the magnetic part and to outer ends of the hollow member; and
attaching the magnetic part to a chassis via attachment members, wherein the attachment members are attached to the longitudinally outer ends of the magnetic part and extend through the two slots in the hollow member.

US Pat. No. 11,070,118

ELECTRICAL MACHINE DISCONNECTION SYSTEMS

Hamilton Sundstrand Corpo...


1. A hybrid drive system, comprising:a shaft; and
an electrical machine, comprising:a stator; and
a rotor attached to the shaft to rotate with the shaft relative to the stator; and

a rotor electromagnetic property modifying system configured to modify an electromagnetic property of the rotor to cause the rotor and the stator to be fully electromagnetically inactivated.

US Pat. No. 11,070,117

APPARATUS AND METHOD TO CENTRIFUGALLY CAST COPPER ROTOR ASSEMBLIES FOR INDUCTION MOTOR OF ELECTRIC VEHICLE

SF Motors, Inc., Santa C...


1. An apparatus to centrifugally cast copper rotor assemblies for induction motors of electric vehicles, comprising:a rotor assembly with a cylindrical shape that defines a central axis, the rotor assembly terminates in a first end and a second end;
an inner die component;
an outer die component, each of the inner die component and the outer die component disposed at the first end of the rotor assembly;
a spinner assembly, comprising:a lower structure disposed beneath the rotor assembly, comprising:a base plate;
a spindle component to mate with the outer die component;
a first bearing assembly having a first inner ring component and a first outer ring component, the first outer ring component fixedly coupled with the base plate and the first inner ring component fixedly coupled with the spindle component such that the spindle component is permitted to rotate with the rotor assembly about the central axis relative to the base plate;

an upper structure disposed above the rotor assembly, comprising:an upper plate;
a drive wheel component to mate with the rotor assembly;
a second bearing assembly having a second inner ring component and a second outer ring component, the second outer ring component fixedly coupled with the upper plate and the second inner ring component fixedly coupled with the drive wheel component such that the drive wheel component is permitted to rotate with the rotor assembly about the central axis relative to the upper plate; and

a sidewall structure that couples the lower structure with the upper structure; and

a motor to drive rotation of the drive wheel component.

US Pat. No. 11,070,116

ROTOR FOR A ROTATING ELECTRICAL MACHINE

ABB Schweiz AG, Baden (C...


1. A rotating electrical machine comprising:a rotor with a hollow cylindrical shape disposed around and defining an axis line between a drive end and an non-drive end of the rotating electrical machine, the rotor including a support annulus axially aligned with the axis line and made of a fiber composite material with the fibers generally aligned parallel with the axis line, the support annulus including a plurality of magnet cavities disposed therein and spaced radially around the support annulus, each magnet cavity receiving a magnetic bar;
an outer stator disposed concentrically about the rotor and defining an outer annular gap there between, the outer stator including a first plurality of conductive windings wound thereon; and
an inner stator disposed concentrically within the rotor and defining an inner annular gap there between, the inner stator including a second plurality of conductive winding wound thereon, the inner stator operatively connected to a shaft.

US Pat. No. 11,070,115

MOTOR/GENERATOR SYSTEM AND METHOD

Prototus, Ltd., Ambergri...


1. An electromagnetic motor/generator, comprising:a flux assembly having at least one coil and at least one magnetic field source, separated by a first gap and a second gap;
an interference drum having an axis, the interference drum including a first rotor plate having a first outward facing surface and a first inward facing surface, a second rotor plate having a second outward facing surface and a second inward facing surface, a hub connecting the first rotor plate and the second rotor plate in a spaced apart relationship with the first inward facing surface of the first rotor plate and the second inward facing surface of the second rotor plate facing each other, at least one first magnetically permeable section attached to the first inward facing surface of the first rotor plate, and at least one second magnetically permeable section attached to the second inward facing surface of the second rotor plate, the at least one first magnetically permeable section and the at least one second magnetically permeable section arranged substantially directly opposite each other; and
wherein the interference drum is movable through a circular path relative to the at least one coil and to the at least one magnetic field source to position the at least one first magnetic field permeable section and the at least one second magnetic field permeable section inside the first and second gaps at substantially a same instant in time.

US Pat. No. 11,070,114

SHAFT-GROUNDING RING


1. A shaft-grounding ring for dissipating induced voltages or electric charges away from a first machine element into a second machine element, the shaft-grounding ring comprising:an annular housing comprised of electrically conductive material and configured to be conductively connected to the first machine element;
at least one first dissipation element comprised of an electrically conductive material, wherein the at least one first dissipation element is electrically conductively connected to the annular housing and is configured to be electrically conductively connected to the second machine element;
wherein the at least one first dissipation element is a disk-shaped dissipation body extending at least over a portion of a circumference of the at least one first dissipation element;
wherein two or more of said at least one first dissipation element are combined to a package of dissipation elements, wherein the shaft-grounding ring further comprises a spring element resting against one side of the package of dissipation elements, wherein the spring element has at least approximately a same shape and a same size as the two or more of said first dissipation elements.

US Pat. No. 11,070,113

ELECTRIC ROTATING MACHINE

Mitsubishi Electric Corpo...


1. An electric rotating machine comprising:an output shaft of the electric rotating machine;
a magnetic body fixed inside a case of the electric rotating machine surrounding the output shaft;
a sensor magnet fixed to the output shaft and generating a magnetic field for detecting a rotational angle of the output shaft; and
a rotation sensor fixed inside the case of the electric rotating machine, arranged between the magnetic body and the sensor magnet in an axial direction of the output shaft and outputting a signal in accordance with the intensity of the magnetic field for detecting the rotational angle,
wherein N-pole and S-pole are magnetized in a circumferential direction around the output shaft in the sensor magnet, and
the rotation sensor is arranged in an area in which, when an amplitude ratio between a radial-direction component and a circumferential-direction component around the output shaft in a magnetic flux density of the magnetic field is “k”, an n-order angle error fn (k) expressed by the amplitude ratio “k” satisfies a required rotational angle detection accuracy E,
wherein “n” is an even number.

US Pat. No. 11,070,112

SENSOR MAGNET, ROTOR, ELECTRIC MOTOR, AND AIR CONDITIONER

Mitsubishi Electric Corpo...


1. A sensor magnet comprising:a first magnetic-pole part including a magnetic pole of first polarity;
a second magnetic-pole part including a magnetic pole of second polarity; and
an inter-pole part formed between the first magnetic-pole part and the second magnetic-pole part, wherein
the first magnetic-pole part, the inter-pole part, and the second magnetic-pole part are arranged in a circumferential direction around an axis line,
a width of the inter-pole part in a radial direction is larger than both of a width of the first magnetic-pole part in a radial direction and a width of the second magnetic-pole part in a radial direction and more than 1.5 times as large as the width of the first magnetic-pole part, and
an area of a detection target surface of the inter-pole part in an axial direction parallel to the axis line is larger than both of an area of a detection target surface of the first magnetic-pole part in the axial direction and an area of a detection target surface of the second magnetic-pole part in the axial direction.

US Pat. No. 11,070,111

ELECTRIC PUMP DEVICE

NIDEC TOSOK CORPORATION, ...


1. An electric pump device comprising:a motor;
an inverter substrate that is electrically connected to the motor;
a housing that accommodates the motor and the inverter substrate; and
a pump section that is driven by motive power of the motor,
wherein the inverter substrate has a plurality of heat generating elements that are mounted on the inverter substrate and are disposed at intervals from each other,
the housing has an inverter housing section that accommodates the inverter substrate,
the inverter housing section hasa first member that faces one plate surface of a pair of plate surfaces of the inverter substrate,
a second member that faces the other plate surface of the pair of surfaces, and
a plurality of heat conductive sheets that are disposed between the first member or the second member and the inverter substrate and is brought into contact with the first member or the second member and the inverter substrate,

the heat conductive sheets are thermally connected to the heat generating elements, and
the plurality of heat conductive sheets are individually disposed at positions at which the heat conductive sheets overlap the plurality of heat generating elements in a plan view of the inverter substrate.

US Pat. No. 11,070,110

COOLING SYSTEM FOR ROTARY ELECTRIC MACHINE

HONDA MOTOR CO., LTD., T...


1. A cooling system for a rotary electric machine comprising:a rotary electric machine;
a pump configured to increase and decrease a flow rate of a coolant according to a magnitude of a rotational speed of the rotary electric machine and pump the coolant;
a first coolant flow path extending from the pump to the rotary electric machine and configured to guide the coolant to the rotary electric machine;
a second coolant flow path branching off from the first coolant flow path and configured to guide the coolant to the pump;
a pressure regulation part provided in the first coolant flow path and configured to regulate a pressure in the first coolant flow path;
a flow rate regulation part provided at a position downstream than the pressure regulation part in the second coolant flow path in a flow direction of the coolant and configured to regulate a flow rate of the coolant;
a third coolant flow path branching off from a position between the pressure regulation part and the flow rate regulation part in the second coolant flow path and joining to a position downstream than the branching position of the second coolant flow path in the first coolant flow path in the flow direction of the coolant; and
a flow path switching part provided in the third coolant flow path and configured to allow a flow of the coolant to the first coolant flow path when experiencing a pressure of a threshold or more.

US Pat. No. 11,070,109

MOBILE ELECTRIC POWER GENERATION FOR HYDRAULIC FRACTURING OF SUBSURFACE GEOLOGICAL FORMATIONS

TYPHON TECHNOLOGY SOLUTIO...


11. A system for providing mobile electric power, the system comprising:a first transport having a gas turbine with an intake and an exhaust, the first transport having a first side, the first side comprising an inlet plenum in communication with the intake and comprising an exhaust collector in communication with the exhaust; and
a second transport separate from the first transport, such that the first and second transports are independently movable, the second transport having a second side positionable adjacent to the first side of the first transport, the second transport comprising:an air side port disposed on the second side and configured to communicate with the inlet plenum,
an exhaust side port disposed on the second side and configured to communicate with the exhaust collector,
an exhaust stack disposed on the second transport and having an exhaust passage, the exhaust stack being movable between a first position and a second position, the exhaust stack in the first position being lowered on the second transport, the exhaust stack in the second position being raised on the second transport and pointing the exhaust passage vertically, and
first hydraulics disposed with the exhaust stack and configured to move the exhaust stack at least from the first position to the second position,
wherein at least a part of the exhaust stack is configured to be positioned above the exhaust side port when in the second position.


US Pat. No. 11,070,108

ELECTROMAGNETIC ROTARY DRIVE AND A ROTATIONAL DEVICE


1. An electromagnetic rotary drive, which is designed as an external rotor, having a rotor comprising:a ring-shaped magnetically effective core arranged around a stator and having a magnetic central plane, the stator being a bearing and a drive stator with drive coils, with which, in an operating state, the rotor being contactlessly magnetically drivable about an axis of rotation defining an axial direction, and with which the rotor is contactlessly magnetically levitatable with respect to the stator, the rotor actively magnetically levitated in a radial plane perpendicular to the axial direction, and passively magnetically stabilized in the axial direction and against tilting, the rotor comprising a magnetically effective bearing ring arranged radially externally disposed and spaced from the magnetically effective core of the rotor, and a bearing stator having a magnetically effective stator ring configured to interact with the bearing ring, the bearing stator configured and arranged such that the stator ring passively magnetically stabilizes the rotor against tilting with the drive coils disposed radially inwardly of both the magnetically effective core and the magnetically effective stator ring, and the bearing ring is connected to the magnetically effective core of the rotor via a connecting element made of a material configured to decouple the bearing ring and the magnetically effective core.

US Pat. No. 11,070,107

OPEN-CORE FLYWHEEL ARCHITECTURE

The Boeing Company, Chic...


1. A flywheel rotor for use in a hollow open-core flywheel assembly for storing and releasing energy, said flywheel rotor comprising:a rotor, the rotor having an inner surface and an outer surface;
at least one flexible upper stability permanent magnet affixed on the inner surface of the rotor;
at least one flexible lower stability permanent magnet affixed on the inner surface of the rotor;
wherein the rotor in use establishes an attractive force value in a position at rest between the flywheel rotor and a stator, said stator positioned in close proximity with the rotor, said stator comprising at least one stator magnet dimensioned wider than at least one of the at least one flexible upper stability permanent magnet;
wherein the at least one flexible upper stability permanent magnet and the at least one flexible lower stability permanent magnet are dimensioned to substantially maintain the attractive force value with the stator nearly uniformly as the rotor grows outward radially when the rotor is operating at circumferential velocities of from about 300 m/s to about 3000 m/s;
wherein the at least one flexible upper stability permanent magnet and the at least one flexible lower stability permanent magnet comprise FeBNd powder; and
wherein the at least one flexible upper stability permanent magnet and the at least one flexible lower stability permanent magnet comprise a material having a Young's modulus of from about 0.01 MPa to about 2 MPa.

US Pat. No. 11,070,106

ELECTRIC OIL PUMP

NIDEC TOSOK CORPORATION, ...


1. An electric oil pump comprising:a motor unit having a shaft centered on a central axis that extends in an axial direction of the shaft, wherein the axial direction includes a first axial direction and a second axial direction opposite to the first axial direction; and
a pump unit which is disposed on the first axial direction of the shaft is driven by the motor unit via the shaft, and discharges oil,
wherein the motor unit comprisesa rotor that is fixed on the second axial direction of the shaft;
a stator that is disposed outside the rotor in a radial direction of the rotor;
a resin housing in which the rotor and the stator are housed, wherein the resin housing further comprises a substrate housing chamber being disposed on the second axial direction of the shaft and houses a circuit board;
a connector assembly comprising a terminal part including one end side that is connected to the circuit board and the other end side that is connected to an external connector disposed outside the resin housing; and
a connector body part holding the terminal part, wherein the connector assembly is integrally molded with the resin housing, and
wherein the connector body part has a surface part that is disposed on the first axial direction with respect to the circuit board housed in the substrate housing chamber and extends along a surface of the circuit board on the first axial direction,
wherein the other end side of the terminal part protrudes from the surface part,
wherein the surface part has a terminal support that surrounds a periphery of a base part of the terminal part and protrudes from the surface part, and
wherein the terminal support has a fitting part that is configured to be fitted to a positioning part of a mold for positioning the connector body part with respect to the resin housing,
wherein the pump unit comprises
a pump rotor installed on the shaft; and
a pump housing in which the pump rotor is housed.


US Pat. No. 11,070,105

MOTOR AND PUMP DEVICE

NIDEC SANKYO CORPORATION,...


1. A motor comprising:a rotor comprising an output shaft and a rotor main body which holds the output shaft from an outer peripheral side;
a bearing member structured to support the output shaft movable in a direction of an axial line and rotatable around the axial line; and
a bearing holding member which holds the bearing member;
wherein when one side of the output shaft in the direction of the axial line is referred to as an output side and another side of the output shaft is referred to as an opposite-to-output side, the bearing member comprises:
a tube part which supports a shaft portion on the opposite-to-output side of the output shaft with respect to the rotor main body in a penetrated state; and
a slidably contacting part which is capable of slidably contacting with the rotor main body from the opposite-to-output side;
wherein the bearing holding member comprises an opposed face which faces the rotor main body from the opposite-to-output side, and a recessed part which is provided in the opposed face;
wherein the tube part of the bearing member is inserted into the recessed part;
wherein the tube part is separated from a bottom face of the recessed part;
wherein a space between the bottom face of the recessed part and the tube part on an inner side of the recessed part is structured as a lubricant storage part where a lubricant is stored;
wherein a communication path is provided between the bearing holding member and the bearing member so as to be extended from the lubricant storage part to the output side and opened in the opposed face;
wherein the communication path comprises a groove part which is formed on an outer peripheral face of the tube part;
wherein the bearing member comprises a flange part which is enlarged from an end part on the output side of the tube part to an outer peripheral side and is abutted with the opposed face from the output side;
wherein an end face on the output side of the flange part is the slidably contacting part;
wherein a contour of the flame part when viewed in the direction of the axial line comprises a straight contour portion and a circular arc contour portion which connects both ends of the straight contour portion;
wherein an opening edge of the recessed part of the bearing holding member is provided with a chamfer part in a taper shape which is inclined to the opposite-to-output side toward a side of the recessed part; and
wherein the communication path is opened between the chamfer part and the straight contour portion of the flange part.

US Pat. No. 11,070,104

STATOR OF AN ELECTRICAL MACHINE, AN ELECTRICAL MACHINE, AND METHOD FOR PRODUCING SAME

Robert Bosch GmbH, Stutt...


1. A stator (16) of an electrical machine (10), the stator having a pole housing (15) with an inner wall (115), and the stator having winding carriers (36) that are contiguous with the inner wall (115) and that carry electrical coils (17), wherein the winding carriers (36) have a stator tooth (120), which is formed on a yoke element (118) that is radially contiguous with the inner wall (115), and arranged on the winding carrier (36) is an insulation mask (61), which insulates an electrical coil (17) with respect to the winding carrier (36), and the insulation mask (61) extends axially, with an axial extension (102), beyond the yoke element (118), characterized in that the axial extension (102) includes a collar (108) that is located at a distal end of the axial extension (102), that is spaced from the yoke element (118) and that extends in the circumferential direction (2), wherein the collar (108) is radially contiguous with the inner wall (115) of the pole housing (15).

US Pat. No. 11,070,103

MOTOR

PANASONIC INTELLECTUAL PR...


1. A motor comprising:a stator including a stator core and teeth respectively protruding from the stator core in predetermined directions of protrusion; and
coils respectively wound onto the teeth n, n is an integer of 2 or greater, turns including first to n-th turns,
wherein
each of the coils is respectively wound onto the teeth in the predetermined directions of protrusion of the teeth, a first turn of each of the coils lies adjacent to a center of the motor, and a k-th, k is an integer, 1 the first turn when each of the coils is cut in a corresponding one of the predetermined directions of protrusion is greater in cross-sectional area than each of the k-th turn and the n-th turn, the first turn of each of the coils is largest in cross-sectional area among the first to n-th turns,
each of the coils gradually reduces in cross-sectional area from the first turn to the n-th turn, and
mutually adjacent turns are different from each other in cross-sectional area.

US Pat. No. 11,070,102

MOTOR USING PRINTED CIRCUIT BOARD AND METHOD FOR MANUFACTURING THE SAME

Hyundai Motor Company, S...


1. A motor using a printed circuit board, comprising:a first base part forming a first circuit board on which a coil pattern is printed;
a second base part forming a second circuit board on which the coil pattern is printed, the second base part spaced apart from the first base part; and
a plurality of side parts forming side circuit boards on which the coil pattern is printed, the plurality of side parts connected to the first base part and the second base part, respectively, such that the coil pattern successively connects the first base part, the second base part, and the plurality of side parts,
wherein each of the side parts is formed by bending a portion of the first base part or a portion of the second base part,
wherein an end portion of each of the side parts bent on the first base part is coupled to the second base part, and
wherein an end portion of each of the side parts bent on the second base part is coupled to the first base part.

US Pat. No. 11,070,101

METHOD AND APPARATUS FOR COOLING AN ROTOR ASSEMBLY

GE AVIATION SYSTEMS LLC, ...


1. A rotor assembly for an inside-out electric machine comprising:an annular rotor core defining a set of rotor posts, the annular rotor core rotatable about an axis of rotation;
a set of rotor windings wound around the respective set of rotor posts; and
a thermally conductive wedge disposed between adjacent rotor windings of the set of rotor windings, the thermally conductive wedge defining a first distal end and a second distal end, spaced from the first distal end and having an inner surface defining a hollow cavity extending through the thermally conductive wedge in an axial direction between the first distal end and the second distal end;
a cap disposed entirely within the rotor core and fully enclosed thereby, the cap positioned radially outward from the thermally conductive wedge and configured to prevent a radial movement of the thermally conductive wedge during a rotational movement of the rotor assembly; and
wherein the thermally conductive wedge receives an airflow at the first distal end, through the entire hollow cavity to the second distal end and heat from the set of rotor windings is thermally transferred to the inner surface of the thermally conductive wedge and the airflow therein.

US Pat. No. 11,070,100

STATOR FOR AN ELECTRIC MACHINE, ELECTRIC MACHINE AND PRODUCTION METHOD

SIEMENS AKTIENGESELLSCHAF...


1. A stator for an electric machine, said stator comprising:a stator carrier having a plurality of grooves, each said groove having a groove base; and
a motor winding including a first strand, with a predetermined number of first grooves of the plurality of grooves being assigned to the first strand, said first strand having coil sections which are introduced in the first grooves, respectively, said first strand including a plurality of individual wires which are connected electrically in parallel, with each wire embodied as a round wire, at least a few of the individual wires in each of the coil sections being arranged above one another in a radial direction of the stator, said coil sections being arranged in the first grooves such that an average radial distance of the individual wires from the groove base is equal for all of the individual wires, said first strand configured to have at least two electrically parallel branches and having in each of the branches a transposition area, at which, after winding of a first coil, at a transition to a subsequent chained coil, the parallel individual wires are turned by 180° and then further turned by 180° within a winding so that the coil sections and the individual wires are arranged in opposite directions between the first grooves.

US Pat. No. 11,070,099

COOLING STRUCTURE OF STATOR OF ROTATING ELECTRICAL MACHINE

MEIDENSHA CORPORATION, T...


1. A cooling structure of a stator of a rotating electrical machine that conducts cooling of stator coil ends by a refrigerant, the cooling structure being equipped with an oil guide, the oil guide comprising:an arc-shape tube that has a first refrigerant passage therein, the arc-shape tube being opposed to an axial end portion of a stator coil end and being along arrangement of the stator coil end, the arc-shape tube being configured such that the refrigerant is introduced into the first refrigerant passage; and
a first tubular portion that projects from a surface of the arc-shape tube toward the stator coil end of each unit coil, the first tubular portion having therein a second refrigerant passage communicating with the first refrigerant passage such that the refrigerant passes from the first refrigerant passage through the second refrigerant passage, and then is discharged from a tip end of the first tubular portion toward the stator coil end of each unit coil.

US Pat. No. 11,070,098

WIRELESS CHARGER WITH ADAPTIVE ALIGNMENT ASSISTANCE

Google LLC, Mountain Vie...


1. A wireless charger comprising:a power transmission coil configured to wirelessly provide power at a charging area of the wireless charger through inductive coupling;
a magnetic sensor arranged to detect whether a magnet is present at the charging area;
an electromagnet configured to generate a magnetic field in the charging area when the electromagnet is energized to align a mobile device to be charged by the power transmission coil; and
control circuitry configured to:(i) selectively energize the electromagnet to align the mobile device, based on receiving a signal from the magnetic sensor indicating that a magnet is present at the charging area;
(ii) detect wireless communication from the mobile device while the electromagnet remains energized; and
(iii) terminate or decrease power to the electromagnet based on having detected the wireless communication from the mobile device.


US Pat. No. 11,070,097

DEVICE AND METHOD FOR TRANSMITTING OR RECEIVING DATA IN WIRELESS POWER TRANSMISSION SYSTEM

LG Electronics Inc., Seo...


1. A wireless power receiver device, comprising:a power pickup circuit configured to receive a wireless power generated based on magnetic coupling from a wireless power transmitter device in a power transfer phase; and
a communication/control circuit configured to receive, from the wireless power transmission device, information for a first buffer size
wherein the information for the first buffer size informs a size of a first buffer for the wireless power transmitter device to receive a data transfer,
wherein the first buffer size is defined as a multiplication of a minimum buffer size k and 2n, and
wherein the information for the first buffer size is the n.

US Pat. No. 11,070,096

ELECTRONIC EQUIPMENT, METHOD AND DEVICE FOR CONTROLLING CHARGING, AND STORAGE MEDIUM

BEIJING XIAOMI MOBILE SOF...


1. A method of wireless charging, comprising:determining an energy region from a plurality of energy regions associated with electronic equipment that covers second electronic equipment by scanning the plurality of energy regions in which energy can be radiated by the electronic equipment in distinct directions corresponding to the plurality of energy regions;
determining an energy sub-region that covers the second electronic equipment by scanning energy sub-regions of the determined energy region covering the second electronic equipment, the energy sub-regions being coverable respectively by the energy radiated in distinct directions; and
radiating a wireless charging signal toward the determined energy sub-region covering the second electronic equipment.

US Pat. No. 11,070,095

METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR

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


1. A method of detecting a foreign object in a wireless power transmitter, the method comprising:measuring a first quality factor value at a first frequency within an operating frequency band;
measuring a second quality factor value at a second frequency within the operating frequency band;
determining whether the foreign object is present in a charging area based on the first quality factor value and the second quality factor value, wherein the second frequency is greater than the first frequency;
determining at least one of the foreign object and a misaligned wireless power receiver is present in the charging area, when the second quality factor value is greater than the first quality factor value; and
determining at least one of the foreign object is not present in the charging area and the wireless power receiver is not misaligned in the charging area, when the second quality factor value is less than the first quality factor value.

US Pat. No. 11,070,094

APPARATUS AND METHOD FOR WIRELESS POWER TRANSMISSION

Samsung Electronics Co., ...


1. A wireless power transmission method comprising:receiving a communication signal from a wireless power receiver;
determining, based on the communication signal, phases of polarization channels of a reference antenna array, at which the wireless power receiver receives maximum power;
determining, by activating a first antenna array together with the reference antenna array, phases of polarization channels of the first antenna array such that the wireless power receiver receives maximum power;
determining, by deactivating the first antenna array and activating a second antenna array together with the reference antenna array, phases of polarization channels of the second antenna array such that the wireless power receiver receives maximum power; and
transmitting, to the wireless power receiver, a power signal generated by using the reference antenna array, the first antenna array, and the second antenna array,
wherein the determining of the phases of the polarization channels of the first antenna array comprises:determining, in a state in which only a first polarization channel of two polarization channels of the first antenna array is activated, a first phase of the first polarization channel, at which the wireless power receiver receives maximum power; and
after determining the first phase, determining, by activating a second polarization channel, a second phase of the second polarization channel, at which the wireless power receiver receives maximum power.


US Pat. No. 11,070,093

POWER TRANSFER FOR RADIO-FREQUENCY RECTIFIERS

Atmosic Technologies Inc....


1. A wireless device comprising:a first radio-frequency (RF) rectifier configured to generate a first voltage from an RF signal;
a second RF rectifier configured to generate a second voltage from the RF signal, wherein the second voltage is an open circuit output voltage;
a voltage regulator coupled to the first RF rectifier and configured to regulate the first voltage to provide power to the wireless device; and
a controller configured to control power transfer from the first RF rectifier to the voltage regulator by adjusting an input impedance of the voltage regulator based at least in part on the first voltage and the second voltage.

US Pat. No. 11,070,092

METHOD AND APPARATUS FOR RADIO-FREQUENCY POWER HARVESTING CONTROL

Atmosic Technologies Inc....


1. An apparatus comprising:a first power harvester configured to generate a first unregulated voltage from a first radio-frequency (RF) signal within a first range of frequencies;
a second power harvester configured to generate a second unregulated voltage from a second RF signal within a second range of frequencies different from the first range of frequencies;
a reset signal generator configured to generate a sequence of reset signals; and
a switch controller configured to selectively couple the first power harvester and the second power harvester to a charge-storage device based at least in part on the first unregulated voltage, the second unregulated voltage, and the sequence of reset signals.

US Pat. No. 11,070,091

WIRELESS POWER TRANSFER BASED ON TRANSMITTER COIL VOLTAGE SENSING

MICROCHIP TECHNOLOGY INCO...


1. A system for wireless power transfer based on transmitter coil voltage sensing, said system comprising:a wireless power transmitter comprisinga DC-to-AC power inverter, wherein an input of the power inverter is adapted for coupling to a DC power source,
a transmitter tuned circuit comprising a series connected capacitor and a transmitter power coil, wherein the series connected capacitor and transmitter power coil are coupled to an output of the DC-to-AC power inverter,
a circuit for sampling voltage on the transmitter power coil, whereby amplitude and phase of the voltage are determined; and

a wireless power receiver comprisingan AC-to-DC power converter,
a receiver tuned circuit comprising a receiver power coil and at least one capacitor, wherein the receiver tuned circuit is coupled to an AC input of the AC-to-DC power converter,
a voltage control circuit coupled to a DC output of the AC-to-DC power converter and providing a DC voltage to a load, and
a data communications circuit for modulating voltage control data onto the receiver tuned circuit;

wherein the receiver power coil is inductively coupled to the transmitter power coil, receives power therefrom and transmits modulated voltage control data thereto for controlling the voltage amplitude on the transmitter power coil.

US Pat. No. 11,070,090

RESONANCE-TYPE CONTACTLESS POWER SUPPLY, INTEGRATED CIRCUIT AND CONSTANT VOLTAGE CONTROLLING METHOD THEREFOR

SILERGY SEMICONDUCTOR TEC...


1. A resonance-type contactless power supply comprising:an inverter configured to receive electric energy and output an AC current with a self-inductance resonance frequency in a first state, and to stop its operation in a second state;
a transmitter-side resonant circuit comprising a transmitting coil for receiving said AC current from said inverter;
a receiver-side resonant circuit comprising a receiving coil which is separated from but electrically coupled to said transmitting coil in a contactless manner, and configured to receive electric energy from said transmitting coil;
a rectifier circuit being electrically coupled to said receiver-side resonant circuit;
an output capacitance being connected in parallel at an output of said rectifier circuit; and
a control circuit configured to switch said inverter between said first state and said second state so that said rectifier circuit outputs a constant output voltage,
wherein under said first state, switches included in the inverter are controlled by said control circuit in accordance with a feedback voltage of said output voltage, so as to generate said AC current based on said electric energy,
under said second state, said switches included in the inverter are controlled by said control circuit in accordance with said feedback voltage, so as to stop generating said AC current.

US Pat. No. 11,070,089

POWER RECEIVING APPARATUS, POWER TRANSMISSION SYSTEM, CHARGING APPARATUS AND POWER TRANSMISSION METHOD

Sony Corporation, Tokyo ...


1. A power receiving apparatus comprising:an excitation element;
rectification circuitry configured to rectify alternating current of a specific resonance frequency to generate a direct current;
switching circuitry configured to cut off a supplying path of said alternating current to said rectification circuitry; and
a resonance element having said specific resonance frequency and configured tocouple in a first non-contacting relationship to a first resonance element through a first resonance relationship,
couple in a second non-contacting relationship to a second resonance element through a second resonance relationship, and
couple in a third non-contacting relationship to said excitation element through electromagnetic induction,

wherein said resonance element is coupled to said first resonance element and said second resonance element when said supplying path of said alternating current to said rectification circuitry is blocked by said switching circuitry, and
wherein said resonance element is configured to hold a current path in a form of a loop to maintain said coupling to said first resonance element and said second resonance element when said supplying path of said alternating current to said rectification circuitry is blocked by said switching circuitry.

US Pat. No. 11,070,088

WIRELESS POWER TRANSFER

Apple Inc., Cupertino, C...


1. An inductive power transmitter comprising:a power transmitting coil configured to produce an inductive power transfer field;
communication circuitry configured to communicate with an inductive power receiver using modulation of the inductive power transfer field;
monitoring circuitry operatively connected to the communication circuitry and configured to determine a communication fault condition that includes one or more of a corrupt, unreadable, incomplete, invalid, or missing communication; and
a converter configured to provide an alternating current voltage to the power transmitting coil and adjust a control parameter upon a determination of a communication fault condition, wherein the converter is configured to adjust an additional control parameter if the communication fault condition is not removed after adjustment of the control parameter.

US Pat. No. 11,070,087

WIRELESS POWER SYSTEM WITH IN-BAND COMMUNICATION

Apple Inc., Cupertino, C...


1. An electronic device configured to receive wireless power from a power transmitting device, comprising:a coil that is configured to receive alternating-current magnetic signals transmitted from the power transmitting device and configured to produce corresponding alternating-current voltages having a first frequency;
a rectifier coupled to the coil that is configured to rectify the alternating-current voltages and produce a corresponding rectified direct-current voltage; and
wireless transceiver circuitry coupled to the coil that is configured to generate a carrier wave having a second frequency that is different than the first frequency and transmit the carrier wave to the power transmitting device using the coil while the coil is receiving the alternating-current magnetic signals at the first frequency.

US Pat. No. 11,070,086

POWER RECEIVING UNIT, POWER TRANSMISSION SYSTEM, AND METHOD OF CONTROLLING THE POWER RECEIVING UNIT

FUJITSU LIMITED, Kawasak...


1. A power receiving unit comprising:a secondary resonant coil configured to receive electric power from a primary resonant coil using magnetic resonance or electric field resonance occurring between the primary resonant coil and the secondary resonant coil;
a secondary coil capable of changing a number of turns or a pitch of a winding, the secondary coil being configured to receive the electric power from the secondary resonant coil using electromagnetic induction;
a rectification circuit connected to an output side of the secondary coil configured to perform rectification of an alternating current power output from the secondary coil;
a smoothing circuit connected to an output side of the rectification circuit;
an output terminal for connecting an output side of the smoothing circuit with a DC-DC converter;
a storage unit for storing data representing an association between a load resistance of the DC-DC converter and the electric power received from the primary resonant coil, the data representing the association being stored for each number of turns or each of the pitches of the winding; and
a controller configured to
determine the number of turns or the pitch of the winding of the secondary coil such that the input voltage of the DC-DC converter does not exceed the upper limit, by calculating, for each number of turns or each of the pitches of the winding, the input voltage of the DC-DC converter when the electric power received from the primary resonant coil is a predetermined magnitude, based on the data in the storage unit; and
control the number of turns or the pitch of the winding of the secondary coil to the determined number of turns or the determined pitch.

US Pat. No. 11,070,085

METHODS AND APPARATUS FOR REGULATING A MAGNETIC FLUX IN AN INDUCTIVE POWER SUPPLY


1. A method, comprising:generating, by a voltage waveform generator, an alternating voltage periodic waveform that is supplied to a winding coupled to a magnetic core to regulate an alternating magnetic flux in the magnetic core, the alternating voltage periodic waveform being generated by selectively enabling one or more switches coupled to a storage device, and the alternating magnetic flux varying, during a first period of the alternating voltage periodic waveform, as a first function of time in accordance with a first pattern of variations; and
configuring, by a processor, the one or more switches in accordance with a configuration during at least part of a second period of the alternating voltage periodic waveform, the configuration causing the alternating magnetic flux to vary, during the second period, as a second function of time in accordance with a second pattern of variations, and the second pattern of variations being different from the first pattern of variations.

US Pat. No. 11,070,084

VEHICLE

Toyota Jidosha Kabushiki ...


1. A vehicle comprising:an undercover provided on a bottom surface of the vehicle, the undercover including multiple air-flow regulating panels configured to regulate air flow flowing on a bottom surface side in the vehicle, the multiple air-flow regulating panels being made of a metallic material having a lower electric resistance than that of iron; and
a power receiving apparatus provided on a lower surface of one of multiple the air-flow regulating panels, the power receiving apparatus being configured to wirelessly receive electric power from a power transmitting apparatus disposed outside the vehicle,
wherein, among the multiple air-flow regulating panels, the air-flow regulating panel on which the power receiving apparatus is disposed has higher rigidity than rigidities of the other air-flow regulating panels.

US Pat. No. 11,070,083

INDUCTIVE POWER TRANSFER UNIT, A SYSTEM FOR INDUCTIVE POWER TRANSFER AND A METHOD OF COMMUNICATING

Bombardier Primove GmbH, ...


1. An inductive power transfer unit for inductive power transfer to a vehicle, wherein the inductive power transfer unit comprises at least one winding structure and at least one flux guiding means, wherein the inductive power transfer unit further comprises at least one antenna element,wherein at least one portion of the at least one flux guiding means is a part of the at least one antenna element,
wherein the inductive power transfer unit comprises an arrangement of multiple flux guiding means, wherein the arrangement of flux guiding means comprises multiple rows of flux guiding elements, wherein the rows of flux guiding elements are arranged adjacent to each other, wherein a flux guiding means is designed as a bar, wherein the at least one antenna element is wound around at least one section of at least one flux guiding means,
wherein the at least one winding structure comprises multiple subwinding structures,
wherein successive subwinding structures of the at least one winding structure are arranged adjacent to one another along a longitudinal axis of the at least one winding structure,
wherein the at least one winding structure is configured to generate or receive an electromagnetic field for the inductive power transfer,
wherein the at least one flux guiding means is configured to guide a magnetic flux of the electromagnetic field generated or received by the at least one winding structure,
wherein at least one section of the flux guiding means extends into a volume or area enclosed by the multiple subwinding structures, and
wherein the at least one antenna element is configured to separate from the at least one winding structure and is an element for receiving or transmitting a communication signal.

US Pat. No. 11,070,082

SYSTEMS AND METHODS FOR MANAGING MESH-NETWORKED POWER CONTROL DEVICES USING TOKENS

CARBONTRACK PTY LTD., Vi...


1. An interface device for scheduling efficient power allocation to a plurality of power control devices for a localized mesh network, the device comprising:a local area wireless transceiver;
a memory storingprocessor-executable program code,
at least one function type representing a type of a function that is a power-consuming activity of at least one appliance,
at least one function priority associated with the function type,
at least one task representing a subtype of the at least one function type, and
at least one task priority associated with the at least one task; and

at least one processor having access to the program code and configured to communicate with the plurality of power control devices via the local area wireless transceiver,
wherein, when the at least one processor executes the program code, the device is configured to:receive a plurality of power allocation requests via the local area wireless transceiver from the plurality of power control devices forming part of the localized mesh network, each of the power allocation requests relating to proposed power usage by an appliance to which the respective power control device is coupled, each of the power allocation requests specifying a function type of the at least one function type and a task of the at least one task,
determine available power resources,
determine which of the power allocation requests to accommodate based on the available power resources, a priority level of the request, and an estimate of required power associated with the request, the priority level being determined by the at least one function priority and the at least one task priority associated with the request, and
respond to each of the power allocation requests to be accommodated by sending an approval message to each of the power control devices from which the accommodated power allocation requests were received indicating a time interval, at or during which the requested power will be allocated, the approval message comprising a resource allocation token defining a validity period corresponding to the time interval during which the respective power allocation request is considered valid to authorize performance of the function of the at least one appliance,

wherein any appliance of the at least one appliance manually activated by a user is immediately granted power, regardless of the priority level of the function and the task for which the appliance is manually activated.

US Pat. No. 11,070,081

BUILDING MANAGEMENT SYSTEM WITH SMART CIRCUIT BREAKER

Johnson Controls Technolo...


1. A smart circuit breaker configured for installation within a panel assembly, the smart circuit breaker comprising:a breaker device positioned between a power source and a subcircuit, the breaker device having a moveable contactor configured to change from an open state to a closed state, wherein in the closed state power flows from the power source to the subcircuit via a power line, and wherein in the open state power does not flow from the power source to the subcircuit;
a power meter configured to measure a power characteristic of the subcircuit at a predetermined sampling rate; and
a processing circuit configured to receive a power characteristic measurement from the power meter and downsample the power characteristic measurement to a predetermined downsample rate, the processing circuit having a communications interface configured to communicate power consumption data to an external device, the power consumption data based on the power characteristic measurement.

US Pat. No. 11,070,080

RESERVE POWER SUPPLY SYSTEM

Cattron North America, In...


1. A reserve power supply system, said system comprising:a first battery;
an electrical interface adapted for being coupled to a second battery;
a control unit;
a switch coupled to said first battery, to said electrical interface and to said control unit, said switch being controlled by said control unit;
a voltage sensor coupled to said control unit and to said electrical interface, said voltage sensor being adapted for measuring the voltage across said second battery when said second battery is coupled to said electrical interface and providing a corresponding voltage sensor signal to said control unit, wherein when said voltage sensor signal is below a predetermined value, said control unit controls said switch to coupled said first battery to said electrical interface.

US Pat. No. 11,070,079

INTEGRATED POWER SUPPLY SYSTEM FOR AUXILIARY SERVICES FOR POWER CONVERTERS


1. An integrated power supply system for auxiliary services for power converters, comprising:an auxiliary transformer which comprises at least: two inputs and an auxiliary AC power supply output;
at least two contactors;
a sinusoidal filter whose output is connected to an input of the auxiliary transformer with interconnection of a contactor;
at least one DC-AC inverter module which comprises an input and two outputs; where the input is connectable to a DC source, an output is connected to the input of the sinusoidal filter and the other output is connected to a shared AC line which in turn is connected to the auxiliary transformer with interconnection of a contactor and connectable to an AC network;
a connection/disconnection contactor to the AC network situated in the shared AC line, between the output of the DC-AC inverter module and the AC network;
a control module configured to send control commands and connected to at least:the connection/disconnection contactor to the AC network;
the contactors;
the DC-AC inverter module;


where the control module is configured to select a power supply mode from among:the DC source;
a set of batteries, and;
the auxiliary AC power supply output;such that in order to carry out said selection of the power supply mode, the control module, by means of control commands, opens the connection/disconnection contactor to the AC network, opens the output contactor of the DC-AC inverter module, closes the output contactor of the AC sinusoidal filter and adjusts a voltage and current at the output of the DC-AC inverter module which connects to the sinusoidal filter so that the auxiliary transformer generates the auxiliary AC power.


US Pat. No. 11,070,078

ASTS-LESS BLOCK REDUNDANT ELECTRICAL TOPOLOGY WITH VARIABLE UPS WALK-INS

VERIZON MEDIA INC., New ...


1. A method comprising:supplying power to a critical load using a stored energy device in response to detecting an outage of a utility;
transmitting an on bypass request to a reserve power system via an automatic bypass input upon determining that a capacity of the stored energy device has reached a pre-determined threshold, wherein the on bypass request is transmitted from a primary uninterruptible power supply (UPS) to a switchboard of the reserve power system; and
transferring the critical load to the reserve power system if the reserve power system is able to support the critical load, the transferring the critical load to the reserve power system comprising coupling the critical load to the switchboard via an automatic bypass input of the primary UPS.

US Pat. No. 11,070,077

HIBERNATE CONTROL CIRCUITS FOR BATTERY POWER SWITCHING

CALAMP CORP., Irvine, CA...


1. A hibernate control circuit comprising:hibernate clear logic having a first input terminal coupled to a main input power supply to sense a voltage thereof to enable usage of battery power by hibernatable circuits when the main input power supply is switched off, and a second input terminal coupled to a low frequency clock signal to periodically wake up hibernatable circuits to use battery power;
hibernate set logic having an input terminal to receive a hibernate input command signal, the hibernate set logic to disable usage of battery power by hibernatable circuits based on the hibernate input command signal to conserver battery power;
a debounce circuit coupled to an output terminal of the hibernate set logic to validate the hibernate input command signal before disabling usage of battery power by hibernatable circuits; and
hibernate state control logic coupled to an output of the debounce circuit to receive a valid hibernate input command signal to disable usage of battery power by hibernatable circuits, the hibernate state control logic further coupled to an output of the hibernate clear logic to enable usage of battery power by hibernatable circuits when the main input power supply is switched off or to periodically wake up hibernatable circuits to use battery power to perform a function, the hibernate state control logic to selectively control multiplexing battery power onto a hibernatable power bus coupled to the hibernatable circuits.

US Pat. No. 11,070,076

CHARGING METHOD, CHARGING SYSTEM, AND POWER ADAPTER

GUANGDONG OPPO MOBILE TEL...


1. A charging system, comprising:a battery;
a first rectification unit, configured to rectify an input alternating current (AC) and output a voltage of a first pulsating waveform;
a transformer, configured to output voltages of multiple pulsating waveforms at a secondary side of the transformer;
a synthesis unit, configured to synthesize voltages of multiple pulsating waveforms output at the secondary side of the transformer and output a second AC for charging the battery, wherein an absolute value of a peak voltage of a positive half of each cycle of the second AC is greater than an absolute value of a valley voltage of a negative half;
a sampling unit, configured to sample a voltage of the second AC to obtain a voltage sampling value; and
a modulation and control unit, configured to modulate the voltage of the first pulsating waveform according to the voltage sampling value and to apply the voltage of the modulated first pulsating waveform to a primary side of the transformer, and the transformer being configured to convert the voltage of the modulated first pulsating waveform to the voltages of the multiple pulsating waveforms, such that the second AC meets charging requirements.

US Pat. No. 11,070,075

ELECTRONIC DEVICE INCLUDING NON-CONTACT CHARGING MODULE AND BATTERY

Sovereign Peak Ventures, ...


1. A mobile terminal comprising:a wireless charging module including a charging coil formed of a wound conducting wire and a communication coil placed adjacent to the charging coil, the wireless charging module having a substantially planar shape, wherein a distance between the communication coil and the charging coil is non-uniform;
a battery pack having a substantially planar shape and configured to store power from the wireless charging module; and

at least one circuit board substrate configured to control operation of the mobile terminal, wherein the wireless charging module overlaps with the at least one circuit board substrate and is proximate to the battery pack, and the at least one circuit board substrate does not overlap with the battery pack.

US Pat. No. 11,070,074

APPARATUS AND METHOD FOR CHARGING BATTERY BASED ON TEMPERATURE

Samsung Electronics Co., ...


1. An electronic device comprising:a battery;
a temperature sensor;
a charging circuit configured to charge the battery;
a coil antenna; and
at least one processor configured to:measure a temperature corresponding to at least a part of the electronic device by using the temperature sensor;
charge the battery depending on a first charging characteristic by using the charging circuit and supply a current to the coil antenna to allow the coil antenna to emit heat, when the temperature satisfies a first specified condition; and
charge the battery depending on a second charging characteristic by using the charging circuit, when the temperature satisfies a second specified condition, after the current is supplied,

wherein a temperature range of the first specified condition is lower than a temperature range of the second specified condition, and
wherein the second charging characteristic includes a charging power, a charging current, and a fully charged voltage higher than a charging power, a charging current, and a fully charged voltage of the first charging characteristic.

US Pat. No. 11,070,073

MOBILE POWER SYSTEM WITH MULTIPLE DC-AC CONVERTERS AND RELATED PLATFORMS AND METHODS

MOBILE ESCAPES, LLC, Win...


1. A mobile power system comprising:an alternating current-direct current (AC-DC) converter configured to convert a grid AC signal to a power limited DC charging signal;
at least one DC-AC converter coupled to said AC-DC converter;
a battery module configured to provide a DC power signal;
a switching circuit coupled between said battery module, and said AC-DC converter and said at least one DC-AC converter, said switching circuit comprising a switch, and first and second diodes coupled in parallel to said switch; and
a controller coupled to said battery module, said switching circuit, and said at least one DC-AC converter, said controller configured to selectively switch said switching circuit between a first state, a second state, and a third state,
the first state comprising concurrently charging said battery module using the power limited DC charging signal and routing the DC power signal to said at least one DC-AC converter;
the second state comprising charging said battery module using the power limited DC charging signal and disabling said at least one DC-AC converter;
the third state comprising blocking charging of said battery module and routing the DC power signal to said at least one DC-AC converter.

US Pat. No. 11,070,072

BATTERY FUEL GAUGE APPARATUS

Taiwan Semiconductor Manu...


1. A method comprising:coupling a charge phase circuit and a battery phase circuit to a battery through a protection device, wherein the protection device comprises a first transistor, wherein the charge phase circuit comprises a first sensing device, the first sensing device comprising:a first sensing resistor having a positive temperature coefficient; and
a second sensing resistor having a negative temperature coefficient, the second sensing resistor connected in series with the first sensing resistor;

in a charge mode, turning on a plurality of first switches and turning off a plurality of second switches to connect the charge phase circuit to the battery; and
in a battery mode, turning on the plurality of second switches and turning off the plurality of first switches to connect the battery phase circuit to the battery, wherein during a duration of the charge mode and the battery mode the first transistor is turned on.

US Pat. No. 11,070,071

POWER SUPPLY APPARATUS

Dayton Technologies Limit...


1. A battery charger comprising a main housing, an internal compartment inside the main housing and extending between a first base surface and a second base surface, a main housing peripheral wall interconnecting the first base surface and the second base surface, a battery charging circuit inside the internal compartment, an engagement portion integrally formed with the main housing and protruding from the first base surface of the main housing and extending in an axial direction away from the internal compartment to define an end surface on an axial free end of the engagement portion distal from the first base surface, an engagement portion peripheral wall interconnecting the first base surface and the end surface, a pair of battery charging terminals or one battery charging terminal protruding axially from the end surface, a pair of self-engaging latches which is under a resilient bias of an internal spring arrangement to protrude laterally outwards and away from the engagement portion peripheral wall, and a pair of press buttons on opposite lateral sides of the main housing peripheral wall operable to retract the latches inwardly towards the pair of battery charging terminals and inwardly away from the engagement portion peripheral wall; wherein the protruding engagement portion has a lateral profile which is shaped and dimensioned for insertion into a correspondingly shaped and dimensioned battery charger receptacle along the axial direction, and the self-engaging latches are shaped dimensioned and positioned to retract inwardly towards the battery charging terminal upon encountering the battery charger receptacle until reaching a latching portion on the battery charger receptacle whereat the self-engaging latches are to move laterally outwards due to the resilient bias to enter into releasable latched engagement with the latching portion.

US Pat. No. 11,070,070

CHARGE CABLE DEADZONE MITIGATION

Snap Inc., Santa Monica,...


1. A system, comprising:a chargeable device including:a battery;
a battery charger circuit coupled to the battery; and
a cable plug including first and second charging contact pads coupled to supply power to the battery charger circuit of the chargeable device, and an insulator electrically separating the first and second charging contact pads;

a charging cable including:a power bus;
a ground bus;
a cable head having a recess configured to accept the cable plug when the cable head is rotatably coupled to the cable plug of the chargeable device;
power pins protruding into the recess of the cable head;
ground pins protruding into the recess of the cable head;
one or more power path switches coupled between the pins and the buses; and
switching logic circuitry configured to control the one or more power path switches to selectively connect a different one of the power pins to the power bus and a different one of the ground pins to the ground bus, in respectively different states.


US Pat. No. 11,070,069

DEVICE AND METHOD FOR POWER MANAGEMENT OF A TYPE-C CHARGER

MOTOROLA SOLUTIONS, INC.,...


1. A charger comprising:a USB type-C input port configured to receive power from a power supply;
a plurality of output ports each configured to couple to one of a plurality of devices to be charged; and
a control logic circuit operatively coupled to the plurality of output ports, the control logic circuit configured to manage power to the plurality of output ports,
wherein the control logic circuit is hardwired to prioritize power to a first output port of the plurality of output ports when the first output port is coupled to a device such that an amount of the received power is allocated to the first output port instead of at least one of the remaining plurality of output ports that is coupled to a second device, and
wherein the control logic circuit is non-programmable and does not include a general purpose microprocessor and wherein the allocation of the amount of received power to the first output port is performed independently of a general purpose microprocessor.

US Pat. No. 11,070,068

BATTERY PACK AND METHOD FOR DISCHARGING THE SAME AFTER A FAULT EVENT

INTERNATIONAL BUSINESS MA...


1. A battery pack configured for discharging to a desired state of charge (SoC) after a fault event, the battery pack comprising:a plurality of battery cells;
a balancing circuit connected to each of the battery cells;
a microcontroller configured to receive operational values of each of the battery cells, compare the operational conditions values of each of the battery cells to a prescribed threshold values and issue commands to selectively discharge one or more of the battery cells; and
a battery management system configured to receive the operational values from each of the battery cells,
wherein the battery management system communicates the operational conditions and values of each of the battery cells to the microcontroller or receives a command from the microcontroller to selectively discharge one or more of the battery cells, and
wherein the microcontroller disconnects the battery cells from itself upon completion of the discharge of one or more of the battery cells.

US Pat. No. 11,070,067

BATTERY MANAGEMENT UNIT AND BATTERY PACK INCLUDING SAME

LG CHEM, LTD., Seoul (KR...


1. A battery management unit for a battery module including a plurality of battery cells, the battery management unit comprising:a sensing unit electrically connected to the plurality of battery cells, wherein the sensing unit is configured to detect voltage of each battery cell of the plurality of battery cells and output a detection signal including voltage information representing the detected voltages;
a first power supply unit configured to generate a first operating voltage using a module voltage of the battery module; and
a communication unit which operates using the first operating voltage, the communication unit including an antenna, a wireless communication circuit and a first input port, wherein the communication unit is receiving the detection signal from the sensing unit through the first input port, testing at least one preset item based on the detection signal, and outputting a RF signal indicating a result of the testing through the antenna and the wireless communication circuit.

US Pat. No. 11,070,066

PASSIVE BATTERY CELL DISCHARGE

Caterpillar Inc., Peoria...


15. A system comprising:a battery that includes a plurality of cells;
a plurality of bleed resistors coupled to the plurality of cells; and
a battery controller configured to:determine that a charging operation associated with the battery has ended;
compare, based on determining that the charging operation has ended, states of charge associated with the plurality of cells;
determine, based on comparing the states of charge, that a first state of charge of a first cell of the plurality of cells is unbalanced relative to a second state of charge of a second cell of the plurality of cells;
estimate, based on a difference between the first state of charge and the second state of charge, an amount of energy that is to be removed from the first cell to balance the first state of charge with the second state of charge;
discharge, via a bleed resistor of the plurality of bleed resistors, energy from the first cell based on the estimated amount of energy;
identify a length of time that the bleed resistor has been activated; and
resume, based on the length of time that the bleed resistor has been activated, passive discharging of the first cell upon startup of a machine associated with the battery.


US Pat. No. 11,070,065

METHOD AND APPARATUS OF A MODULAR MANAGEMENT SYSTEM FOR ENERGY STORAGE CELLS

VRIJE UNIVERSITEIT BRUSSE...


1. A management system for rechargeable energy storage devices comprising:series connected energy storage cells,
a cell splitting circuit comprising switches configured for splitting the series connected energy storage cells into groups of cells,
a control unit, and
a mode selection circuit comprising switching devices and a single ohmic device, wherein the switching devices are configured to select anyone of:
externally powered cell balancing, wherein externally powered cell balancing is a passive balancing mode during charging or discharging of the rechargeable energy storage devices,
internally powered cell balancing, wherein internally powered cell balancing is a series-parallel mode balancing during a rest time, and
an internally powered diagnostic test for state-of-health or state-of-charge estimation, wherein a first group of cells of said groups of cells split with the cell splitting circuit is adapted to apply an excitation current for testing a second group of cells of said groups of cells,
and wherein said single ohmic device is configured to determine a level of balancing current for said passive and for said series-parallel mode balancing.

US Pat. No. 11,070,064

POWER PLANTS USING INCONGRUENT LOAD IMBALANCE RESPONSE

Mitsubishi Power Americas...


1. A method of controlling an imbalance response in a power plant comprising a first gas turbine engine, a second gas turbine engine and a steam turbine driven by steam generated by exhaust from the first gas turbine engine and the second gas turbine engine, the method comprising:operating the first gas turbine engine at a first power output;
operating the second gas turbine engine at a second power output;
monitoring load demand from a power grid operating at a steady state condition;
detecting a load imbalance on the power grid that causes a deviation from the steady state condition; and
adjusting the first power output and the second power output incongruently during the imbalance response to change the first power output and the second power output to match the deviation from the steady state condition, the incongruence depending on contemporaneous efficiency states of the first gas turbine engine and the second gas turbine engine.

US Pat. No. 11,070,063

METHOD FOR ALTERNATING CONVERSION SOLAR POWER

AMPT, LLC, Fort Collins,...


2. A method of solar energy power creation comprising the steps of:accepting DC input to each of a plurality of photovoltaic DC-DC power converters, wherein each photovoltaic DC-DC power converter comprises a boost and buck power conversion circuit in any order, and is connected in series to at least one other photovoltaic DC-DC power converter of said plurality of photovoltaic DC-DC power converters;
converting said DC input into a converted photovoltaic DC output by each of said plurality of photovoltaic DC-DC power converters; and
controlling each of said plurality of photovoltaic DC-DC power converters to alternate, while producing operational power, between:maximum power point tracking,
overcurrent boundary condition control of said converted photovoltaic DC output at other than maximum power point, and
overvoltage boundary condition control of said converted photovoltaic DC output at other than said maximum power point.


US Pat. No. 11,070,062

PHOTOVOLTAIC CONVERSION SYSTEMS

AMPT, LLC, Fort Collins,...


1. A solar power system comprising:a plurality of DC-DC power converters, wherein each one of said DC-DC power converters:is connected in series to at least one other DC-DC power converter of said DC-DC power converters, and
comprises boost conversion circuitry and buck conversion circuitry; and

converter functionality control that is capable of individually controlling an operational point of said each one of said DC-DC power converters during operation of said solar power system to produce operational power, by alternating said operational point of said each one of said DC-DC power converters between:maximum power point for said each one of said DC-DC power converters,
an overcurrent boundary on DC output of said each one of said DC-DC power converters, wherein said overcurrent boundary is at other than said maximum power point, and
an overvoltage boundary on said DC output of said each one of said DC-DC power converters, wherein said overvoltage boundary is at other than said maximum power point.


US Pat. No. 11,070,061

VIRTUAL RESERVOIR STORING ENERGY FOR A HYDROELECTRIC POWER PLANT

AES Gener S.A., Santiago...


1. A load management system for a hydroelectric power plant, the system comprising:a power generator configured to generate electrical energy from a flow of water for supplying a power grid;
a virtual reservoir configured to store the generated electrical energy and dispatch the stored electrical energy to the power grid;
a step-up transformer connected between the virtual reservoir and the power grid;
a plurality of circuit breakers that connect an output of the power generator to the power grid and to the virtual reservoir, wherein a first of the plurality of circuit breakers is connected between the virtual reservoir and the step-up transformer and a second of the plurality of circuit breakers is connected between the step-up transformer and the power grid;
one or more sensors configured to measure grid frequency; and
a control unit,
wherein the control unit is configured to control operating states of the plurality of circuit breakers so that the generated electrical energy is stored at the virtual reservoir and so at least one of the generated electrical energy is provided to the power grid and the stored electrical energy is dispatched to the power grid,
wherein the control unit is configured to control the operating states of the plurality of circuit breakers based on the measured grid frequency received from the one or more sensors, and
wherein the control unit is configured to control, according to a frequency droop in the measured grid frequency, dispatch of a specified percentage of the stored electrical energy to the power grid within a specified time frame.

US Pat. No. 11,070,060

PREDICTIVE GRID CONTROL SYSTEM AND METHOD BASED ON SENSITIVITY OF VARIANCE WITH RESPECT TO ELECTRIC POWER PREDICTION

Eaton Intelligent Power L...


1. A method for controlling assets that provide and/or consume energy on an electric power grid, the method comprising:a system controller generating a prediction of an electric power consumption and/or a generation of at least one of a load and a source coupled to the electric power grid responsive to a forecast of an event;
the system controller determining a set point for a controller of an asset on the grid responsive to the prediction;
the system controller determining a sensitivity of the set point to a variance of the electric power consumption and/or a generation of the at least one of a load and a source with respect to the prediction of the electric power consumption and/or a generation of the at least one of a load and a source; and
the system controller determining a functional representation of a control scheme for the asset based on the determined sensitivity of the set point, wherein the functional representation describes an interdependence of the set point and at least one other control parameter of the asset-, wherein the functional representation includes a first function that relates real power to a voltage frequency and a voltage magnitude and a second function that relates reactive power to the voltage frequency and the voltage magnitude;
the system controller transmitting the functional representation to a local controller associated with one of the assets; and
the local controller controlling the one of the assets responsive to the functional representation.

US Pat. No. 11,070,059

FREQUENCY CONVERTER AND METHOD IN CONNECTION WITH A FREQUENCY CONVERTER

ABB Schweiz AG, Baden (C...


1. A frequency converter adapted to drive an electrical load, wherein the frequency converter comprisesa communications interface through which the frequency converter is adapted to receive external requests to change input power of the frequency converter,
means adapted to hold one or more conditions for allowing to change the input power of the frequency converter, and
processing means adapted to change the input power of the frequency converter upon receipt of the external request in limits set by the one or more conditions.

US Pat. No. 11,070,058

FORECASTING NET LOAD IN A DISTRIBUTED UTILITY GRID

GREEN POWER LABS INC., D...


1. A method for generating a net load forecast for a utility grid or portion thereof by a net load forecasting system, the utility grid or portion thereof including one or more intermittent distributed energy resources and one or more loads, the method comprising:using a processor of the net load forecasting system, defining two or more load forecast zones, each load forecast zone being associated with a load profile type and a climate zone type;
assigning each of the one or more loads to one of the two or more load forecast zones based on the load profile type and the climate zone type associated with the load;
assigning each of the one or more intermittent distributed energy resources to at least one of the two or more load forecast zones based on the climate zone type associated with the intermittent distributed energy resource;
for each load forecast zone, generating an electrical energy consumption forecast for loads assigned thereto using at least one of actual electrical energy consumption measurements for the one or more loads received by the net load forecasting system from at least one respective sensor and virtual electrical energy consumption measurements for the one or more loads, an electric power generation forecast for intermittent distributed energy resources assigned thereto using at least one of actual electric power generation measurements for the one or more intermittent distributed energy resources received by the net load forecasting system from at least one respective sensor and virtual electric power generation measurements for the one or more intermittent distributed energy resources, and a net load forecast from the electrical energy consumption forecast and the electric power generation forecast;
combining the net load forecast for each load forecast zone to generate the net load forecast for the utility grid or portion thereof; and,
presenting the net load forecast for the utility grid or portion thereof on a display.

US Pat. No. 11,070,057

METHOD FOR STARTING AN ENERGY GENERATION NETWORK

Wobben Properties GmbH, ...


1. A method for starting a wind farm grid of a wind farm, wherein the wind farm grid has at least one grid connection point connected to an electrical supply grid, and wherein the wind farm grid, in a normal operating mode, exchanges electrical power with the electrical supply grid via the grid connection point, the method comprising:selecting an establishment mode, different than the normal operating mode, in response to the electrical supply grid having a voltage drop or the wind farm grid being isolated from the electrical supply grid; and
operating the wind farm grid in the establishment mode, wherein in the establishment mode:at least one voltage-influencing wind power installation provides a wind farm grid voltage,
at least one current-influencing wind power installation synchronizes to the wind farm grid voltage provided via the at least one voltage-influencing wind power installation, and
the at least one voltage-influencing wind power installation and the at least one current-influencing wind power installation in total provide an electrical power in the wind farm grid,

wherein operation of the at least one voltage-influencing wind power installation is based on at least a first droop and operation of the at least one current-influencing wind power installation is based on at least a second droop, wherein the first droop has a smaller gradient than the second droop, and wherein each droop of the first and second droops describes a respective relationship between:a voltage of the wind farm grid and a reactive power to be supplied or that has been supplied; or
a frequency of the wind farm grid and a real power to be supplied or has been supplied.


US Pat. No. 11,070,056

SHORT-TERM INTERVAL PREDICTION METHOD FOR PHOTOVOLTAIC POWER OUTPUT

DALIAN UNIVERSITY OF TECH...


1. A short-term interval prediction method for photovoltaic power output, comprising steps of:(1) data preprocessing and correlation determination
cleaning collected industrial data firstly, and then analyzing the correlations of influencing factors on photovoltaic power output to reduce the dimension of a sample set and improve the accuracy and computation efficiency of a model; using Person correlation coefficient to measure the degree of correlation between two variables, and the form is shown in formula (1):




wherein xi represents potential influencing factors of temperature and weather on day i, and yi is corresponding photovoltaic power output data; x and y respectively represent the average values of the influencing factors and photovoltaic power output in the data set; the method is used to quantify the correlation between photovoltaic power output and potential factors of temperature, humidity and weather index;
(2) similar day clustering
1) numerical similarity
based on the correlation analysis results of step (1), constructing a sample set as shown in formula (2):[rTPT;rHPH;rWPW]??(2)

wherein T, H and W respectively represent average temperature, average humidity and weather index, and rTP, rHP and rWP respectively represent correlation coefficients between temperature, humidity and weather factors and power; formula (2) is clustered by FCM algorithm according to numerical similarity; the FCM algorithm obtains the membership of each sample point to all class centers by optimizing an objective function, and is a partition-based fuzzy clustering algorithm; the objective function is:




wherein dvt=?zv?st? represents an Euclidean distance between the tth sample point st and the vth clustering center zv in the sample set, e is a weighted index, uvt is the degree to which st belongs to zv, and N is the number of samples; then, a constraint condition is expressed in the form of formula (4):




by introducing a Lagrange multiplier, calculating the membership and the clustering center as shown in formulas (5) and (6):




then, updating the membership and the clustering center through iteration, and judging the convergence of the clustering center according to a given threshold; if the clustering center reaches the number of iterations or converges to the given threshold, stopping the iteration, and obtaining multiple similar day sets and respective clustering centers;
2) pattern similarity
discrete Fre'chet distance is a description mode based on spatial path similarity, is used to evaluate the similarity between two time series, and thus used to correct the clustering result; a formula is shown in (7):




wherein DF(L1, L2) represents the discrete Fre'chet distance between curves L1 and L2, and represent ordered substrings composed of discrete points of L1 and L2, and n and m represent the lengths of L2 and L1 respectively; d(L1,n, L2,m) represents the Euclidean distance between L1,n and L2,m; formula (7) is solved by a recursive method; when two discrete substrings recurse to and , the calculation is terminated; then,DF(,)=d(L1,1,L2,1)??(8)

a similar day correction formula based on the discrete Fre'chet distance is shown in formula (9):D=min(DF(Daypq,c1), . . . ,DF(Daypq,cd))??(9)

wherein DF(Daypq, cn) represents the discrete Fre'chet distance between a sample day q and class d clustering center in class p similar day weather, and D is a minimum value of all discrete Fre'chet distances; when D=DF(Daypq,cd), p?d, this indicates that the pattern similarity between the sample day q and the class d weather clustering center of the class p similar day weather is maximal and is added to the class d similar day weather; all similar days are corrected by the method, and the result after correction is a similar day division result;
(3) construction of sample observation values based on an adaptive scale coefficient interval estimation method
constructing a prediction sample set, and showing an input and an output of the prediction sample set in formula (10) and formula (11):[t?h,Th,H?h,Wh,Th+1,H?h+1,Wh+1]??(10)
[Hh+1,Lh+1]??(11)

wherein t? is time, T is temperature, H? is humidity and W is a weather type index; h and h+1 respectively represent a current time and a prediction time, and Hh+1 and Lh+1 are respectively upper and lower limits of a prediction interval at h+1 time; because the sample set lacks observation values of the upper and lower limits of the photovoltaic power output interval, a variable scale coefficient is constructed to determine the observation values; a specific formula is shown in formula (12):




wherein ? and ? are fixed upper limit scale factor and lower limit scale factor; a+bk? is a penalty function; a and b are constants; k? is a penalty factor, which is expressed as formula (13):




wherein P is an average power value of the observed samples, and Pg is a corresponding power value at g time; ?, ?, a and b values are obtained by NSGA-II multi-objective optimization algorithm; the penalty factor k? dynamically adjusts the scale of the upper and lower limits of the interval according to the power amplitude;
(4) construction of the interval prediction model based on NSGA-II-DLSSVM method
step 1: randomly initializing M populations, and each population comprising a set of parameters: a, ?, a, b, ?1, ?1, ?2 and ?2, wherein ?1 and ?1 are the parameters of a vector machine 1, ?2 and ?2 are the parameters of a vector machine 2, and other parameters are the parameters of the estimation method of the upper and lower limits of the variable scale interval in formula (12);
step 2: substituting initialization parameters into the model, and obtaining the upper and lower limits of interval prediction by training samples based on DLSSVM combined with the estimation method of the upper and lower limits of the variable scale interval;
step 3: calculating the function values of two objectives of interval coverage probability and average width according to prediction results, wherein the interval coverage probability represents the proportion or probability that actual data are distributed in the prediction interval, and the size of the probability is one of important indexes to determine the accuracy of interval prediction, and a formula is shown as follows:




wherein PIC represents the interval coverage probability; K represents the number of the samples; the value of ar is 0 or 1; if a target value yr of the rth sample is in the prediction interval, ar is 1; otherwise, ar is 0; and a definition is shown in formula (15):




the average width of the interval is used as another interval prediction index to improve interval prediction quality; the expression of the average width of the interval is:




wherein WI represents the average width of the interval; Hl and Ll respectively represent the upper limit and the lower limit of interval prediction at l time; and R is a range of the upper limit and the lower limit of the prediction interval, and is used to normalize WI;
step 4: sorting an objective function solution corresponding to each individual in the populations based on improved fast non-dominated sorting to reduce sorting complexity and shorten sorting time;
step 5: calculating and sorting congestion for the individuals in the same layer after non-dominated sorting, and reserving good individuals in a parent generation by an elitist retention strategy;
step 6: copying, crossing and mutating parent and son and merging, and updating the population parameters;
step 7: repeating steps 2-6 until the number of iterations reaches a set number or the model performance improvement is less than the given threshold.

US Pat. No. 11,070,055

METHOD AND APPARATUS FOR INCREASING CURRENT CAPACITY OF A DISTRIBUTED DRIVE SYSTEM

Rockwell Automation Techn...


1. An apparatus for reducing ripple current on a shared DC bus in a distributed motor drive system, wherein the distributed motor drive system includes a plurality of motor drives, each connected to the shared DC bus, and the DC bus includes a set of DC bus wires extending between at least a first portion of the plurality of motor drives and a second portion of the plurality of motor drives, the apparatus comprising:a first capacitance module mounted adjacent to the first portion of the plurality of motor drives, the first capacitance module including:a first set of terminals configured to receive a DC bus voltage via a first set of DC bus bars from a motor drive in the first portion of the plurality of motor drives,
a second set of terminals configured to provide the DC bus voltage to the set of DC bus wires, and
a first internal DC bus electrically connected in series between the first set of terminals and the second set of terminals; and

a second capacitance module mounted adjacent to the second portion of the plurality of motor drives, the second capacitance module including:a third set of terminals configured to receive the DC bus voltage from the set of DC bus wires,
a fourth set of terminals configured to provide the DC bus voltage to a motor drive in the second portion of the plurality of motor drives via a second set of DC bus bars, and
a second internal DC bus electrically connected in series between the third set of terminals and the fourth set of terminals.


US Pat. No. 11,070,054

POWER CONTROLLER

MITSUBISHI ELECTRIC CORPO...


1. A power controller configured to be connected to a load and a plurality of power supplies which supply electric power, the power controller comprising:a plurality of switching elements which are provided in one-to-one correspondence with the plurality of power supplies, and each of which switches on or off to switch between supplying and stopping supplying the load with electric power from a corresponding one of the plurality of power supplies;
a processing circuit configured to compute an operation amount for adjusting an amount of electric power supplied to the load; and
a signal generator configured to
determine, for each control cycle, a switching-element count indicating a total number of switching elements to be turned on among the plurality of switching elements and a duty ratio of the switching-element count, based on the operation amount, and
generate a drive signal for driving the plurality of switching elements successively, based on the switching-element count and the duty ratio, wherein
an order in which the plurality of switching elements drive to on or drive to off is predetermined, and
the signal generator generates the drive signal which causes the plurality of switching elements to drive to on or off in the predetermined order.

US Pat. No. 11,070,053

FAST FAULT CURRENT LIMITER

Koolbridge Solar, Inc., ...


1. A fault current limiting circuit operative to limit an instantaneous fault current, let through from an alternating current source to a load, to a maximum desired value under fault conditions, comprising:an inductor in series with a current path from source to load operative to limit a rate of rise of current under fault conditions;
a first semiconductor switch in series with the current path from source to load comprising two series transistors connected in reverse and configured to be independently controlled to close and pass alternating current with low voltage drop, or to open to block alternating current flow from said alternating current source;
a second semiconductor switch in shunt with the current path from said source to said load comprising two series transistors connected in reverse and configured to be independently controlled to maintain current flow through said inductor in one or both of a first direction and a second direction, when said first semiconductor switch is opened, thereby limiting the development of inductor flyback voltages;
a current sensor operative to sense instantaneous current flowing through said inductor and further operative to output a signal indicative of the instantaneous current; and
a controller operative to receive said output signal from said current sensor and determine a fault condition exists, and further operative to independently control the two transistors of each of said first semiconductor switch and said second semiconductor switch to close said first semiconductor switch and open said second semiconductor switch in the absence of a fault condition so as to pass current from the source to the load, and to limit fault current to a predetermined value when a fault condition exists, by repetitively, and oppositely, opening and closing said first semiconductor switch and said second semiconductor switch in a sequence to control the mean current flow.

US Pat. No. 11,070,052

CIRCUIT PROTECTION SYSTEM

ABB S.p.A., Milan (IT)


1. A circuit protection system, comprising:a plurality of circuit protection devices for a plurality of protected circuits, each circuit protection device including a protection switch and a sensing module, the protection switch configured to connect or disconnect a corresponding protected circuit, the circuit protection device being configured to transmit electrical power through the corresponding protected circuit to an electrical machine that is particularly associated with the corresponding circuit protection device, the protection switch a solid state switch having a gate, the solid state switch being adapted to interrupt a fault current upon detection of a short-circuit fault current in the corresponding protected circuit, the sensing module connected in series with the protection switch and positioned between the protection switch and a load center, the sensing module adapted to sense electrical parameter data in the corresponding protected circuit; and
a central controller in communication with each of the circuit protection devices, wherein the central controller is electrically coupled to the sensing module of each circuit protection device and constructed to receive, via an analog electric signal, the electrical parameter data from the sensing module of each circuit protection device; determine, from the electrical parameter from the analog signal, whether a short-circuit fault current condition has occurred in the corresponding protected circuit based on the electrical parameter data; and send a digital signal to at least one protection switch of the plurality of circuit protection devices that, based on the determination of the short-circuit fault current condition occurring, opens the protection switch for each protected circuit experiencing a short-circuit fault current condition.

US Pat. No. 11,070,051

ARC DETECTION AND PREVENTION IN A POWER GENERATION SYSTEM

Solaredge Technologies Lt...


1. A method comprising:drawing, by a power device, input power from a photovoltaic generator, wherein the input power comprises a voltage at a first voltage level and a current at a first current level;
providing output power at an output of the power device;
reducing, by a power converter comprising a plurality of switches, the input power by reducing the voltage of the input power from the first voltage level to a second voltage level, or the current of the input power from the first current level to a second current level, that extinguishes an arc while maintaining at least some of the output power, wherein the reducing of the input power comprises setting the voltage of the input power to the second voltage level, or the current of the input power to the second current level, by controlling the plurality of switches of the power converter; and
responsive to the arc extinguishing, increasing, by the power converter, the voltage of the input power.

US Pat. No. 11,070,050

METHOD AND CIRCUIT FOR COMPLYING WITH MAXIMUM VALUES FOR OUTPUT PARAMETERS OF A POWER SUPPLY UNIT

Siemens Aktiengesellschaf...


1. A method for complying with specified maximum values for output parameters of at least one power supply unit comprising at least a non-floating switch converter, a switch element, an output voltage control unit and an internal current limiter, the method comprising:measuring actual values of an output current of the at least one power supply unit and actual values of an output voltage of the at least one power supply unit continuously;
calculating, by an evaluation unit, actual output power values of the at least one power supply unit from the actually measured values of the output current and the output voltage;
comparing respective actually measured values of the output current and respective actually calculated output power values with corresponding specified maximum values by the evaluation unit; and
interrupting a current flow of the at least one power supply unit by the evaluation unit if at least one of the specified maximum values is exceeded by an actually measured value of at least one of (i) the output current and (ii) an actually calculated output power value.

US Pat. No. 11,070,049

SYSTEM, METHOD, AND APPARATUS FOR POWER DISTRIBUTION IN AN ELECTRIC MOBILE APPLICATION USING A COMBINED BREAKER AND RELAY

Eaton Intelligent Power L...


1. A breaker/relay, comprising:a fixed contact electrically coupled to a power bus;
a moveable contact selectively electrically coupled to the fixed contact;
an armature operationally coupled to the moveable contact, such that the armature in a first position prevents electrical coupling between the moveable contact and the fixed contact, and the armature in a second position allows electrical coupling between the moveable contact and the fixed contact;
a first biasing member biasing the armature into one of the first position or the second position;
a current response circuit structured to determine a current in the power bus, and further structured to command the armature to the first position in response to the current in the power bus indicating a high current value; and
a contact force spring operationally interposed between the armature and the moveable contact, such that in response to the armature being in the second position, the contact force spring is at least partially compressed, and wherein the contact force spring is configured such that a Lorentz force acting between the fixed contact and the moveable contact further compresses the contact force spring in response to a selected current value.

US Pat. No. 11,070,048

OVERCURRENT PROTECTION CIRCUIT, OVERCURRENT PROTECTION METHOD, AND DISPLAY DEVICE

HKC CORPORATION LIMITED, ...


1. An overcurrent protection circuit for a display device, wherein the overcurrent protection circuit comprises a voltage generation circuit, a current detection circuit, and a microcontroller, whereinan input end of the voltage generation circuit is connected to a power supply, an output end of the voltage generation circuit is connected to an input end of the current detection circuit, and a first output end of the current detection circuit is connected to a first input end of the microcontroller; and
the voltage generation circuit is connected to the power supply, generates a low-order voltage, and transmits the low-order voltage to the current detection circuit; the current detection circuit generates a first current value based on the low-order voltage and transmits the first current value to the microcontroller; and the microcontroller outputs, based on a total current value of the overcurrent protection circuit and the first current value, a set overcurrent protection value corresponding to a scanning clock signal,
the overcurrent protection circuit further comprising a serial bus connected to the current detection circuit and the microcontroller,
the current detection circuit transmits the first current value to the microcontroller via the serial bus; and
the microcontroller outputs the set overcurrent protection value via the serial bus.

US Pat. No. 11,070,047

OVERCURRENT PROTECTION DRIVING CIRCUIT AND DISPLAY APPARATUS

Chongqing HKC Optoelectro...


1. An overcurrent protection driving circuit, comprising: a power supply circuit configured to output a direct current voltage; a switching circuit connected in series between the power supply circuit and a display panel and configured to output or cease outputting the direct current voltage to the display panel according to a switch control signal; a current feedback circuit configured to convert a voltage signal transmitted from the power supply circuit to the display panel to a current signal and feed the current signal back to a current detection circuit; the current detection circuit configured to detect a magnitude of the current signal and output a first level signal when a current value corresponding to the current signal is smaller than an overcurrent protection current threshold value; and a level output circuit configured to control the switching-off of the switching circuit according to the first level signal to cut off the supply of power from the power supply circuit to the display panel, wherein the level output circuit comprises a signal latching circuit and a level conversion circuit, a first signal input terminal of the signal latching circuit is connected with a signal output terminal of the current detection circuit, a signal output terminal of the signal latching circuit is connected with a signal input terminal of the level conversion circuit, and a signal output terminal of the level conversion circuit, a control terminal of the switching circuit and a second signal input terminal of the signal latching circuit are directly interconnected; when the current detection circuit outputs the first level signal, the signal latching circuit is configured to output the first level signal to the level conversion circuit at the signal output terminal; and the level conversion circuit is configured to receive the first level signal output by the signal latching circuit and output a reverse level signal to the switching circuit and the second signal input terminal of the signal latching circuit, wherein the first level signal is a high level signal or a rise edge signal, and the reverse level signal is a low level signal or a falling edge signal.

US Pat. No. 11,070,046

SHORT-CIRCUIT PROTECTION CIRCUIT FOR SELF-ARC-EXTINGUISHING TYPE SEMICONDUCTOR ELEMENT

MITSUBISHI ELECTRIC CORPO...


1. A short-circuit protection circuit for a self-arc-extinguishing semiconductor element,the self-arc-extinguishing semiconductor element including a first main electrode, a second main electrode, and a control electrode, and is configured to be switched on to be conductive between the first main electrode and the second main electrode or switched off to be non-conductive between the first main electrode and the second main electrode, in response to a drive voltage supplied between the control electrode and the first main electrode,
the short-circuit protection circuit comprising:a first protection circuit configured to be in an operating state that reduces a voltage between the control electrode and the first main electrode when overcurrent flowing between the first main electrode and the second main electrode is detected; and
a second protection circuit including:a gate current detection circuit configured to detect current flowing in an interconnection adapted to supply the drive voltage;
an operation determination circuit configured to determine, based on the detected current, whether the first protection circuit is in the operating state; and
a gate block circuit configured to change, when the first protection circuit is in the operating state, the drive voltage to turn off the self-arc-extinguishing semiconductor element.



US Pat. No. 11,070,045

ELECTRICAL PROTECTIVE DEVICE FOR LOW-VOLTAGE DIRECT CURRENT (LVDC) NETWORK

Hong Kong Applied Science...


1. A method for operating an Electrical Protective Device for Low-Voltage DC networks (EPDL) comprising:closing a mechanical relay between a ground input and a ground output when a power-supply voltage is initiated;
after a first delay and a first gate signal is active, activating a second gate signal to enable a bipolar transistor to conduct current from a power input through a second current branch in a semiconductor switch to drive a load on a power output to generate an output voltage;
detecting when a voltage sensor measures that the output voltage exceeds a minimum target and in response activating a third gate signal to enable a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) to conduct current through a first current branch in the semiconductor switch to the power output;
when the voltage sensor does not measure that the output voltage exceeds the minimum target within a start-fault period of time, activating a first shut-down sequence by deactivating the second gate signal to disable the bipolar transistor from conducting current, and then after a second delay, deactivating the first gate signal to open the mechanical relay;
detecting when the voltage sensor measures the output voltage below the minimum target after the MOSFET has been enabled, and deactivating the third gate signal to disable the MOSFET and re-activating the third gate signal to re-enable the MOSFET when the voltage sensor again measures the output voltage above the minimum target, or activating the first shut-down sequence after a third period of time when the voltage sensor does not measure the output voltage above the minimum target within the third period of time; and
detecting when the voltage sensor measures that the output voltage exceeds a maximum target and in response activating a second shut-down sequence by deactivating the third gate signal to disable the MOSFET from conducting current, and then after a third delay, activating the first shut-down sequence to disable the bipolar transistor and then the mechanical relay.

US Pat. No. 11,070,044

SYSTEMS AND METHODS FOR DETECTING AND IDENTIFYING ARCING

Hubbell Incorporated, Sh...


1. A method for detecting and identifying arcing comprising:converting a current from a load to a proportional voltage;
converting the current to a digitized current at a sample frequency;
converting the proportional voltage to a digitized voltage at the sample frequency;
determining a waveform of a cycle of a primary load current based on the digitized current; and
determining at least one noise signal according to the determined waveform of the cycle of the primary load current and the digitized current;
setting a time window within a cycle of the digitized voltage by setting a start time and a stop time of a time interval based on voltage amplitude at the start time and the stop time being within a predetermined value of the peak voltage of the waveform of the cycle of the digitized voltage;
determining a probability density of the at least one noise signal according to the set time window;
comparing the probability density of the at least one noise signal with at least one model probability density; and
generating an output indicative of a positive arc detection based on the comparing when the time window is set based on values of the digitized voltage indicative of the arc.

US Pat. No. 11,070,043

CABLE SPLICE SLEEVE ASSEMBLIES

POWER FEED THRU SYSTEMS A...


1. A cable splice sleeve assembly, comprising:a sleeve for a lug to be disposed therein, the sleeve having:a first sleeve end for a portion of a first electrical cable terminal to be disposed therein; and
a second sleeve end for a portion of a second electrical cable terminal to be disposed therein;

a first gland body directly engaged to the first sleeve end;
a first seal disposed in the first gland body for sealable coupling to the first electrical cable terminal;
a first cap pressing a portion of the first gland body against the first seal;
a second gland body directly engaged to the second sleeve end;
a second seal disposed in the second gland body for sealable coupling to the second electrical cable terminal; and
a second cap pressing a portion of the second gland body against the second seal.

US Pat. No. 11,070,042

LIQUID EPOXY BRUSH BARRIER

HUBBELL INCORPORATED, Sh...


1. An electrical fitting, comprising:a body having an inner cavity for receiving a plurality of conductors;
an aperture within the inner cavity between a first portion of the inner cavity and a second portion of the inner cavity, the first portion having an exterior opening spaced apart from the aperture; and
a brush barrier positioned within or adjacent to said aperture, said brush barrier including an outer rim and a plurality of bristles attached to and extending inwardly from the outer rim, the bristles being displaceable by the conductors,
wherein said electrical fitting is configured to receive a sealing compound within the first portion of said inner cavity between the exterior opening of the first portion and said brush barrier, the sealing compound being at least partially prevented from propagating into the second portion of said inner cavity by said brush barrier.

US Pat. No. 11,070,041

EGRESS SEAL FITTING

Raytheon Technologies Cor...


1. An egress seal fitting for a bulkhead penetration, comprising:a housing separable into a first housing half and a second housing half, wherein the housing comprises an annular cylindrical structure extending between a flanged portion and a base portion;
a driver configured to couple to the housing in response to being inserted therewithin, wherein the driver comprises an annular cylindrical drive portion and a head, wherein the driver is separable into a first driver half and a second driver half, wherein the driver defines a first driver cavity within the housing; and
a seal member disposed within the driver cavity of the housing, wherein the driver is configured to pass a penetrating member through the housing between the first driver half and the second driver half and apply pressure to the seal member,
wherein the flanged portion of the housing includes a tool interface defined by a plurality of penetrations extending through the flanged portion, wherein the plurality of penetrations are arranged circumferentially about the first driver cavity and radially outward thereof, and wherein each penetration of the plurality of penetrations are circumferentially equidistant.

US Pat. No. 11,070,040

QUICK CONNECT ELECTRICAL JUNCTION BOX

VELOX TECHNOLOGY CORPORAT...


1. A Quick Connect Junction Box incorporated as a single molded part, that comprises:a Junction Box having an insulating body with a cavity, wherein the Junction Box is configured to securely fasten to a support surface, wherein the insulating body of the Junction Box comprises:a bottom section and a top section, wherein the bottom section and top section are configured to fasten together via tabs using one or more fasteners, thereby forming the Junction Box; an electrical circuit with internal connections securely positioned within the insulating body and electrically connected to an input power line using one or more conductors via input connections through a channel, wherein the electrical circuit is formed with one or more conductive traces;
one or more connectors extended from the one or more conductive traces, wherein the one or more connectors are outwardly positioned at a center portion of the insulating body of the Junction Box;
wherein the one or more conductive traces are separately positioned within the insulating body of the Junction Box using one or more insulating plates and fasteners;
wherein the one or more conductive traces and the one or more insulating plates incorporated as a single molded part;

an electrical component having an insulating body with an electrical circuit and one or more connectors, securely affixed to the Junction Box via mounting tabs using one or more fasteners, thereby securely and electrically connecting the electrical component to the Junction Box via the one or more connectors and outlet terminals of the electrical component, so as to distribute electrical power to electrical loads, and
one or more interlocking electrical connectors at a side location for supplying electrical power from the Junction Box to an adjacent Junction Box by utilizing the one or more conducting traces.

US Pat. No. 11,070,039

INSULATION SPACER AND GAS INSULATION SHUTOFF APPARATUS USING THE INSULATION SPACER

Hitachi, Ltd., Tokyo (JP...


1. An insulating spacer of a gas insulation shutoff apparatus including a grounded tank filled with an insulating gas, a high-voltage conductor provided within the grounded tank, and the insulating spacer supporting and fixing the high-voltage conductor within the grounded tank, the insulating spacer comprising:a conductor connected to the high-voltage conductor;
an insulating structure supporting and fixing the conductor within the grounded tank; and
a nonlinear resistance layer provided on a creepage surface of the insulating structure,
wherein the nonlinear resistance layer is provided in a portion that is a high-field portion of the creepage surface of the insulating structure, a first end of the nonlinear resistance layer is in contact with the grounded tank, a gap, in which the nonlinear resistance layer is not provided on the creepage surface, is arranged between the conductor and a second end of the nonlinear resistance layer that is opposite to the first end, and the second end is uncovered,
wherein the nonlinear resistance layer is provided so as to cover a motional range of a metal foreign substance on the creepage surface of the insulating structure, and
wherein the motional range essentially includes a first range from a bottom surface of the grounded tank to a maximum flying height of the metal foreign substance, and includes a second range from the maximum flying height to a height causing no dielectric breakdown starting from an end of the nonlinear resistance layer,
wherein the high-field portion has an electric field value of at least 70% of a maximum value of a creeping electric field of the insulating structure, and
wherein the nonlinear resistance layer has a thickness of at least 20 ?m and less than 5 mm.

US Pat. No. 11,070,038

CABINET SYSTEM

REV-A-SHELF COMPANY, LLC,...


1. A cabinet system comprising:a storage container mountable in a cavity of a cabinet to be movable between a first position where the storage container extends out of the cavity through an aperture of the cabinet, and a second position where the storage container is at least partially disposed inside the cabinet, wherein the storage container includes a base, a plurality of walls and a top, the walls coupled with the base proximate a first end of the walls and vertically extending perpendicular to the base to a second end of the walls, the top coupled with the walls proximate the second end such that a flat planar surface of the top is in a plane parallel with the base;
a pair of horizontal slide members configured to fixedly couple with the cabinet and the storage container and slidably connect the storage container and the cabinet;
a power connection point mounted in the flat planar surface of the top or a flat planar surface of one of the walls;
the power connection point comprising a cover and an electric outlet, the cover moveable between a closed position where the electric outlet is inaccessible by a power plug, and an open position where the electric outlet is accessible by the power plug; and
a bracket comprising symmetrical vertical sections respectively coupled with the pair of horizontal slide members, and a horizontal section extending horizontally between the vertical sections above the storage container,
wherein slidable movement of the storage container to move the power connection point from outside to inside the cabinet is denied due to the cover, in the open position, extending away from the storage container a predetermined distance greater than a distance between the storage container and the bracket.

US Pat. No. 11,070,037

MULTI-DIRECTIONAL IMPACT PROTECTION WITH MAGNITUDE AND DIRECTION INDICATOR

International Business Ma...


1. An apparatus comprising:a body with a first set of radial segments, wherein the body is coupled to a server rack frame such that the body is positioned on a first planar surface of a first rail of the server rack frame and a second planar surface of a second rail of the server rack frame adjacent to the first planar surface of the first rail of the server rack frame, wherein the first planar surface of the first rail of the server rack frame is oriented in a first plane, wherein the second planar surface of the second rail of the server rack frame is oriented in a second plane, wherein an angle of a mounting area of the body for coupling the body to the server rack frame equals an angle defined by the first plane and the second plane;
a first radial segment of the first set of radial segments having a first radius greater than a second radius of a second radial segment of the first set of radial segments, wherein an impact force is applied to the first radial segment of the first set of radial segments when initial contact is made on an impact surface of the first radial segment providing an exterior boundary surface for the body; and
a first notch of the first set of radial segments separating the first radial segment and the second radial segment and having a concave edge extending an angle equal to 360 degrees minus the angle defined by the first plane and the second plane,wherein the first radial segment and the second radial segment each extend beyond the concave edge of the first notch of the first set of radial segments,
wherein a combination of the first radial segment, the second radial segment, and the first notch is configured to provide a sequential collapse of the first set of radial segments.


US Pat. No. 11,070,036

MULTL-PHASE LAYERED BUSBAR FOR CONDUCTING ELECTRIC ENERGY WHEREIN THE LAYERS ARE GLUED TOGETHER, METHOD OF MANUFACTORING THE SAME AND SWITCHBOARD CABINET INCLUDING SUCH A BUSBAR

ABB SCHWEIZ AG, Baden (C...


2. A method of manufacturing a multi-phase busbar, the method comprising the following method steps:providing a base layer of an electrically insulating material;
applying a curable adhesive on the base layer;
arranging a first conducting layer of an electrically conducting material which is coated with an electrically insulating material on the base layer;
applying a curable adhesive on the insulating coating of the first conducting layer;
arranging a first prefabricated spacer, including a central layer of a rigid insulating material, on the first conducting layer;
applying a curable adhesive on the upper side of the first spacer;
arranging a second conducting layer which is coated with an electrically insulating material on the first spacer;
applying a curable adhesive to the upper side of the insulating coating on the second conducting layer;
arranging a second prefabricated spacer, including a central layer of a rigid insulating material, on top of the second conducting layer;
urging the base layer and the second prefabricated spacer against each other while curing the adhesive;
providing at least one first connecting pin at the first conducting layer;
providing communicating openings in the first and second spacers and in the second conducting layer through which the first connecting pin extends, or providing at least one further common recess in the conducting layers and the spacers;
filling up the communicating openings or the common recess with a curable liquid resin; and
curing the resin while urging the layers against each other.

US Pat. No. 11,070,035

MODULAR ELECTRO-MAGNETIC CONNECTIONS AND APPLICATIONS THEREOF

ECCO Design, Inc., New Y...


1. A modular system, comprising:a functional module comprising:at least a first and second ferrous conductor at least partially exposed to an exterior of the functional module,
a first magnet contacting the first ferrous conductor,
a second magnet contacting the second ferrous conductor and electrically isolated from the first magnet and the first conductor, and
circuitry electrically connected to the first and second ferrous conductors, wherein
the first and second ferrous conductors are configured to channel and focus magnetic flux from the first and second magnets, respectively, thereby increasing a strength of magnetic flux at the exposed portions of the ferrous conductors to a level greater than would be present there with the magnets alone, while at the same time the first and second ferrous conductors are configured to electrically conduct power to the circuitry;

a second functional module comprising:at least a first and second ferrous conductor at least partially exposed to an exterior of the second functional module,
a first magnet contacting the first ferrous conductor,
a second magnet contacting the second ferrous conductor and electrically isolated from the first magnet and the first conductor, and
circuitry electrically connected to the first and second ferrous conductors; and

a power delivery module comprising first and second ferrous power delivery conductors and a power supply electrically connected to the first and second ferrous power delivery conductors, wherein
the first and second ferrous conductors of the functional module are configured to be magnetically attracted to, contact, and receive power from the first and second ferrous power delivery conductors, respectively,
the first and second ferrous conductors are configured to channel and focus magnetic flux from the first and second magnets, respectively, thereby increasing a strength of magnetic flux at the exposed portions of the ferrous conductors to a level greater than would be present there with the magnets alone, while at the same time the first and second ferrous conductors are configured to electrically conduct power to the circuitry,
the power delivery module includes more ferrous power delivery conductors than either the functional module or the second functional module has ferrous conductors, and
the circuitry of the functional module and the circuitry of the second functional module are operational at least when the ferrous conductors of the functional module contact a set of ferrous power delivery conductors that is not identical to a set of ferrous power delivery conductors contacted by the ferrous conductors of the second functional module.

US Pat. No. 11,070,034

METHOD FOR CONTROLLING AN IONIC WIND GENERATOR WITH AN AC POWER SOURCE AND A DC POWER SOURCE

Toyota Jidosha Kabushiki ...


1. A method for controlling an ionic wind generator,the ionic wind generator comprising:
an electrode body, an AC power source, and a DC power source, wherein
the electrode body has a first electrode layer, a second electrode layer, a third electrode layer, and a dielectric layer,
the AC power source is connected between the first electrode layer and the second electrode layer, whereby an AC voltage can be applied between these electrode layers,
the DC power source is connected between the second electrode layer and the third electrode layer, whereby a DC voltage can be applied between these electrode layers,
the first and third electrode layers are arranged on a portion of a surface of the dielectric layer, opposite to one another and substantially parallel with one another,
a distance between the first electrode layer and the third electrode layer is 18 to 22 mm,
the second electrode layer is arranged on a portion of another surface of the dielectric layer,
such that when the AC voltage is applied between the first electrode layer and the second electrode layer by the AC power source, and the DC voltage is applied between the second electrode layer and the third electrode layer by the DC power source, an ionic wind can be generated in a direction away from the dielectric layer,
the AC voltage applied between the first electrode layer and the second electrode layer by the AC power source is set to 11 to 15 kVpp, and
the DC voltage applied between the second electrode layer and the third electrode layer by the DC power source is set to 11 to 13 kV.

US Pat. No. 11,070,033

OPTICAL AMPLIFIER


1. An optical amplifier device comprising:an input port for launching an input optical signal;
a first coupler including an input optically coupled to the input port, first and second input/outputs, and an output, wherein the first coupler is capable of separating the input optical signal into first and second sub-beams, and outputting the first and second sub-beams via the first and second input/outputs, respectively;
a gain medium optically coupled to the first and second input/outputs, capable of amplifying the first and second sub-beams forming first and second amplified sub-beams;
a reflector for reflecting the first and second amplified sub-beams back to the first coupler;
an output port optically coupled to the output of the first coupler for outputting the amplified optical signal; and
a first phase shifter capable of adjusting a phase of the first or second amplified sub-beam, so that the first amplified sub-beam combines coherently with the second amplified sub-beam causing coherent cancellation therebetween, and forming a combined amplified optical output signal, whereby substantially all of the combined amplified optical output signal exits the output of the first coupler;
wherein the first coupler is further capable of combining the first and second amplified sub-beams into the combined amplified optical output signal, and outputting the combined amplified optical output signal via the output to the output port.

US Pat. No. 11,070,032

LASER ASSEMBLY WITH SPECTRAL BEAM COMBINING

Daylight Solutions, Inc.,...


1. A laser assembly that generates an assembly output beam, the laser assembly comprising:a laser subassembly including a first laser module that emits a plurality of spaced apart, substantially parallel first laser beams, and a second laser module that emits a plurality of spaced apart, substantially parallel second laser beams;
a transform lens assembly positioned in a path of the laser beams, the transform lens assembly collimating the laser beams and directing the laser beams to spatially overlap at a focal plane of the transform lens;
a wavelength selective beam combiner positioned at the focal plane that combines the lasers beams to provide a combination beam that is directed along a combination axis; and
a path length adjuster positioned in a path of the first laser beams, the path length adjuster being adjustable to adjust of a path length the first laser beams relative to the second laser beams.

US Pat. No. 11,070,031

LOW VOLTAGE LASER DIODES ON {20-21} GALLIUM AND NITROGEN CONTAINING SURFACES

KYOCERA SLD Laser, Inc., ...


1. A light emitting apparatus comprising:a laser diode device comprising:a gallium and nitrogen containing material including a {20-21} crystalline surface region orientation;
an n-type cladding material overlying the gallium and nitrogen containing material;
an active region comprising at least two quantum wells and a plurality of barrier layers, each of the quantum wells having a thickness of 1 nm and greater, and each of the plurality of barrier layers having a thickness ranging from 1 nm to less than 3 nm, each adjacent pair of the quantum wells separated by one of the plurality of barrier layers;
a p-type cladding material overlying the active region, at least one of the n-type cladding material or the p-type cladding material being substantially free from AlGaN;
a p-type material overlying the p-type cladding material;
a laser stripe region overlying the crystalline surface region, the laser stripe region being aligned substantially in a projection of the c-direction, the laser stripe region comprising a first end and a second end;
a first facet formed on the first end; and
a second facet formed on the second end; and

a package coupled to the laser diode device.

US Pat. No. 11,070,030

WAVEGUIDE HETEROSTRUCTURE FOR DISPERSION COMPENSATION IN SEMICONDUCTOR LASER


1. A waveguide heterostructure for a semiconductor laser with an active part, comprising an active region layer depending on the type of semiconductor used, which is sandwiched between an electrode layer and a substrate, usable for dispersion compensation in a semiconductor laser frequency comb setup,wherein a passive part, comprising at least an intercladding layer and a passive part top cladding surrounding a passive core layer, the passive part being inserted into the sandwich between the substrate and the electrode layer in a direction of a growth axis on top of or below the active part, wherein the intercladding layer, the passive part top cladding and the passive core layer are semiconductors and the refractive indices of the active region layer and of the passive core layer are greater than the refractive indices of the intercladding layer and of the passive part top cladding,
wherein the active part and the passive part together form a coupled waveguide by coupling between a primary waveguide, whose core is the active region layer, and a secondary waveguide, whose core is the passive core layer, said coupling changing what would otherwise be respective uncoupled fundamental modes of the primary and secondary waveguides into an antisymmetric mode and a symmetric mode, the antisymmetric mode having a lower group velocity dispersion than that of the fundamental mode of the primary waveguide as well as having a larger overlap with the active region layer than that of the symmetric mode, so that the antisymmetric mode is selected for lasing.

US Pat. No. 11,070,029

METHOD OF FORMING AN ELECTRO-OPTICAL DEVICE WITH LATERAL CURRENT INJECTION REGIONS

International Business Ma...


1. A method of fabrication of an electro-optical device, the method comprising: forming an active region of the electro-optical device, said region comprising a stack of III-V semiconductor gain materials stacked along a stacking direction z, the active region formed as a slab having several lateral surface portions, each extending parallel to said stacking direction z; and selectively re-growing two paired elements, including: a pair of doped layers of III-V semiconductor materials, comprising an n-doped layer and a p-doped layer, wherein each of the n-doped layer and the p-doped layer includes a recess, wherein the recess of each of the p-doped layer and the n-doped layer is on a top surface portion thereof, and wherein the recess extends laterally along the slab and parallel to its length, so as for the active region and the contiguous pair of doped layers to have a rib waveguide configuration; and a pair of lateral waveguide cores, so as for the two paired elements to be laterally arranged on opposite sides of the slab, with said elements distinctly adjoining respective ones of the lateral surface portions of the slab, so as to be separated from each other by the slab, wherein: the slab has two pairs of opposite, lateral surface portions, each extending parallel to said stacking direction z, wherein the slab is a form factor, whereby a length of the slab is larger than a width thereof, wherein said width, said length, and said stacking direction z are perpendicular, the p-doped layer and the n-doped layer are arranged on respective sides of the slab, contiguously with the opposite, lateral surface portions of one of said two pairs of surface portions, wherein a maximum length of each of the p-doped layer and the n-doped layer is less than a length of said opposite, lateral surface portions of said one of said two pairs, and the lateral waveguide cores are laterally butt-jointed to the opposite, lateral surface portions of the other one of said two pairs of surface portions.

US Pat. No. 11,070,028

SEMICONDUCTOR LIGHT EMITTING ELEMENT

NUVOTON TECHNOLOGY CORPOR...


1. A semiconductor light emitting element, comprising:a GaN substrate;
a first semiconductor layer above the GaN substrate, the first semiconductor layer including a nitride semiconductor of a first conductivity type;
an active layer above the first semiconductor layer, the active layer including a nitride semiconductor including Ga or In;
an electron barrier layer above the active layer, the electron barrier layer including a nitride semiconductor including at least Al; and
a second semiconductor layer above the electron barrier layer, the second semiconductor layer including a nitride semiconductor of a second conductivity type different from the first conductivity type;
wherein when:
in the electron barrier layer, a stacking direction perpendicular to a main surface of the GaN substrate is an x-axis direction;
in the stacking direction: a position closest to the active layer is represented by position x=Xs; and a position farthest from the active layer is represented by position x=Xe;
in the stacking direction, a position having a highest Al composition ratio between position x=Xs and position x=Xe is represented by position x=Xm;
in the electron barrier layer, an Al composition ratio at position x that satisfies Xs?x?Xe is represented by function f(x); and
a first derivative of function f(x) with respect to x is f?(x), and a second derivative of function f(x) with respect to x is f?(x),
the electron barrier layer includes a first concave region that satisfies f?(x)>0 and f?(x)>0, the first concave region being included in a region that satisfies Xs the electron barrier layer includes a first decrease region and a second decrease region in order from a side of the active layer, the first decrease region having an Al composition ratio that decreases monotonically in a direction from position x=Xm toward the second semiconductor layer, the second decrease region having an Al composition ratio that decreases monotonically less than in the first decrease region in the direction from position x=Xm toward the second semiconductor layer.

US Pat. No. 11,070,027

VARIABLE WAVELENGTH LIGHT SOURCE AND METHOD FOR CONTROLLING WAVELENGTH SWITCHING OF VARIABLE WAVELENGTH LIGHT SOURCE

MITSUBISHI ELECTRIC CORPO...


1. A wavelength tunable light source, comprising:a wavelength tunable laser device configured to output a first emitted beam and a second emitted beam from M beams, M being 2 or more; and
a control device configured to perform control so as to switch wavelengths of the first emitted beam and the second emitted beam to a desired value by controlling the wavelength tunable laser device,
wherein the wavelength tunable laser device includes:M laser diodes configured to generate laser oscillation to output beams;
a multiplexer/demultiplexer configured to multiplex the beams output from the M laser diodes to bifurcate the beams into a first output beam and a second output beam for output;
a first semiconductor optical amplifier configured to amplify the first output beam output from the multiplexer/demultiplexer to output the first emitted beam; and
a second semiconductor optical amplifier configured to amplify the second output beam output from the multiplexer/demultiplexer to output the second emitted beam, and

wherein the control device is configured to perform wavelength switching control on the wavelengths of the first emitted beam and the second emitted beam by switching an electric power input to one of the M laser diodes and an electric power input to the second semiconductor optical amplifier while maintaining an electric power input to the first semiconductor optical amplifier before and after the wavelength switching, for temperature adjustment using the one of the M laser diodes and the second semiconductor optical amplifier as heat sources.

US Pat. No. 11,070,026

HIGH CURRENT NANOSECOND LASER DRIVER CIRCUIT WITH WIDE PULSE-WIDTH ADJUSTMENT RANGE

Analog Devices Internatio...


1. A laser diode driver circuit having an H-bridge configuration having first and second pairs of transistors, the laser diode driver circuit comprising:a load including a laser diode and a load inductance, the load coupled between the first and second pairs of transistors; and
a resonant circuit coupled between the first and second pairs of transistors, the resonant circuit including a capacitor coupled in parallel with the load, wherein the resonant circuit includes a series LC circuit, wherein the series LC circuit includes the capacitor and at least one inductor, and wherein the resonant circuit is sized to generate a resonance with the load inductance.

US Pat. No. 11,070,025

SEMICONDUCTOR RADIATION SOURCE

OSRAM OLED GmbH, Regensb...


1. A semiconductor radiation source comprising:at least one semiconductor chip that generates radiation;
a controller with one or more switching elements configured for pulsed operation of the semiconductor chip; and
at least one capacitor body,

whereinthe semiconductor chip directly electrically connects in a planar manner to the capacitor body,
the controller electrically connects to a side of the semiconductor chip opposite the capacitor body, and
the controller, the capacitor body and the semiconductor chip are stacked on top of each other so that the capacitor body is located between the controller and the semiconductor chip.

US Pat. No. 11,070,024

SEMICONDUCTOR LASER DEVICE

SHARP KABUSHIKI KAISHA, ...


1. A semiconductor laser device comprising: a semiconductor laser element that outputs light from an output portion; and a metal stem that holds the semiconductor laser element, wherein the metal stem includes: a base that has a reference surface on an upper surface and a plurality of notches on an outer circumferential surface of the base; and a protrusion portion that is bonded to, and protrudes upward from, the reference surface, the protrusion portion has an installation surface on which the semiconductor laser element is installed and a side surface which is disposed on an identical plane with a part of the outer circumferential surface, and upper sides of the notches are covered by the protrusion portion.

US Pat. No. 11,070,023

DIAMOND-COATED COMPOSITE HEAT SINKS FOR HIGH-POWER LASER SYSTEMS

PANASONIC INTELLECTUAL PR...


1. A method of heat sink preparation, the method comprising:providing a heat sink comprising a metal-matrix composite of a thermally conductive metal and a refractory metal, the heat sink containing the thermally conductive metal at a first concentration;
etching at least a portion of a surface of the heat sink to deplete at least a portion of the thermally conductive metal therefrom, thereby forming on the at least a portion of the surface a depleted region comprising the refractory metal; and
depositing a coating comprising diamond over the depleted region,
wherein (i) the heat sink comprises a fluid inlet and a fluid outlet, (ii) the at least a portion of the surface of the heat sink is disposed in a portion of the heat sink fluidly coupled to the fluid inlet and the fluid outlet, and (iii) a thickness of the coating ranges from approximately 2 ?m to approximately 5 ?m.

US Pat. No. 11,070,022

SECTOR-SHAPED CLOSELY-PACKED LASER

BWT BEIJING LTD.


1. A sector-shaped closely-packed laser generator, wherein the sector-shaped closely-packed laser generator comprises a module packaging unit and a closely-packed output unit; the module packaging unit is provided therein with a plurality of single-die modules, and each of the single-die modules has a coupling optical fiber; the closely-packed output unit is provided therein with a silicon wafer whose surface has a plurality of V-shaped grooves, and the plurality of V-shaped grooves are arranged into a sector shape; and the coupling optical fibers of the single-die modules protrude from the module packaging unit and enter the closely-packed output unit, and are arranged in the V-shaped grooves after coating layers being stripped, to emit laser lights in directions of the arrangement of the V-shaped grooves.

US Pat. No. 11,070,021

FIBER LASER DEVICE

FUJIKURA LTD., Tokyo (JP...


1. A fiber laser device comprising:a plurality of optical paths sharing a part thereof and causing light to be resonated thereon;
an amplification optical fiber serving as a part of each of the plurality of optical paths and amplifying respective light beams resonated on each of the plurality of optical paths; and
an acoustic optic modulation arranged at a part shared by each of the plurality of optical paths and switchable between a first state, in which the acoustic optic modulation vibrates at a predetermined cycle and emits light incident from the plurality of optical paths to the plurality of optical paths, and a second state, in which the acoustic optic modulation emits light incident from the plurality of optical paths to a path other than the plurality of optical paths,
wherein a resonance cycle of light having highest power out of the respective light beams resonated on each of the plurality of optical paths and the predetermined cycle at which the acoustic optic modulation vibrates in the first state have a non-integral multiple relationship,
wherein the plurality of optical paths include a specific optical path and an optical path including the specific optical path and a loop optical path which is connected in the middle of the specific optical path and is formed in a looped shape, and
wherein light propagating through the specific optical path deviates to the loop optical path at a predetermined branching ratio, and light propagating through the loop optical path couples with the specific optical path at the predetermined branching ratio.

US Pat. No. 11,070,020

SINUSOIDAL PHASE MODULATION OF MODE-LOCKED LASERS

Thorlabs, Inc., Newton, ...


1. An ultrafast mode-locked laser comprising:a mode-locked laser source configured to output laser pulses having a repetition rate;
a synchronous electro-optic modulator (SEOM), comprising:
a half wave plate;
a first polarizing beam splitter or polarizer;
an electro-optic modulator (EOM);
circuitry configured to drive the SEOM with a drive waveform, the drive waveform being a phase-coherent sinusoidal waveform at a frequency equal to half of the repetition rate of the mode-locked laser source; and
a second polarizing beam splitter;
wherein the SEOM is arranged to direct the laser pulses from the laser source through the half wave plate, the first polarizing beam splitter, the EOM, and then to the second polarizing beam splitter;
wherein the second polarizing beam splitter is configured to split the light pulses from the EOM into a first pulse train in a first direction having a first polarization state and a second pulse train in a second direction having a second polarization state;
wherein the ultrafast mode-locked laser further comprises one or more optical elements configured to feed the second pulse train back to the SEOM.

US Pat. No. 11,070,019

SYSTEM FOR PROCESSING AN END OF A CABLE

The Boeing Company, Chic...


1. A system for processing an end of a cable, the system comprising:a cable delivery system;
a plurality of cable processing modules situated at respective workstations accessible to the cable delivery system;
a pair of wheels operable to push the cable into one of the cable processing modules when the cable is in a nip between the wheels;
an apparatus configured to hold the wheels;
a motor having an output shaft operatively coupled to drive rotation of the wheels; and
a rotation encoder configured to output pulses representing incremental angular rotations of the output shaft of the motor,
wherein each cable processing module of the plurality of cable processing modules comprises:
respective cable processing equipment configured to perform a respective operation on the end of the cable;
a respective funnel affixed to the respective cable processing equipment in a location facing the pair of wheels; and
a respective photoelectric sensor positioned and configured to issue a cable tip position signal indicating that interruption of transmitted light in a scanning plane in front of the funnel has started, and
a computer system configured to perform the following operations when the cable arrives at each of the workstations in sequence:
activate the motor to drive rotation of the wheels in the cable pushing direction to cause the end of the cable to be inserted into the cable processing equipment of the cable processing module which the apparatus configured to hold the wheels is adjacent to;
start a count of pulses output by the rotation encoder in response to the cable tip position signal;
de-activate the motor in response to the count reaching a specified value corresponding to a specific target length of cable inserted in the cable processing equipment;
activate the cable processing equipment in which the end of the cable is inserted to perform the respective operation on the inserted end of the cable; and
activate the motor to drive rotation of the wheels in a cable pulling direction to cause the end of the cable to be removed from the cable processing equipment.