21st week of 2022 patent applcation highlights part 65 |
Patent application number | Title | Published |
20220166303 | INTEGRATED CIRCUIT AND POWER SUPPLY CIRCUIT - An integrated circuit for a power supply circuit that includes a transformer and a transistor. The integrated circuit includes a first terminal receiving a voltage corresponding to a coil voltage across an auxiliary coil of the transformer when the transistor is off, a second terminal receiving a feedback voltage corresponding to an output voltage of the power supply circuit, a third terminal receiving a voltage that corresponds to a current flowing through the transistor and the coil voltage respectively when the transistor is on and off, a detection circuit configured to detect whether the voltage at the third terminal when the transistor is off is lower than a reference voltage, and a control circuit configured to control switching of the transistor based on the feedback voltage, the voltage at the third terminal when the transistor is on, and a detection result of the detection circuit. | 2022-05-26 |
20220166304 | SYSTEMS AND METHODS FOR REDUCING PHYSICAL SIZE OF POWER CONVERTER WITH ACTIVE FILTER - Methods and systems for controlling a multipurpose power converter for converting power for a transport climate control system are provided. The multipurpose power converter includes a rectifier having a first leg, a second leg, and a third leg. The multipurpose power converter also includes a first switch, a second switch, and an inductor-capacitor network. The first switch and the second switch are connected to the third leg. The inductor-capacitor network is connected to the first switch. When the first switch is on and the second switch is off, the multipurpose power converter is configured as a single-phase AC power converter. When the first switch is off and the second switch is on, the multipurpose power converter is configured as a three-phase AC power converter. | 2022-05-26 |
20220166305 | GATE DRIVING POWER SOURCE DEVICE - A gate driving power source device can be miniaturized by sharing power source units, and a large current can be prevented from locally flowing in a single chip even when a short-circuit failure occurs in a multi-phase conversion circuit included in a power conversion device. There is provided a shared power source unit supplying a shared DC power source to a gate drive circuit provided in any one of a plurality of lower arms of multi-phase conversion circuits or any one of a plurality of upper arms of the multi-phase conversion circuit and gate drive circuits provided in upper arms or lower arms of other conversion circuits. | 2022-05-26 |
20220166306 | ELECTRICAL CIRCUITS FOR POWER FACTOR CORRECTION BY MEASUREMENT AND REMOVAL OF OVERTONES - Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter. | 2022-05-26 |
20220166307 | ELECTRICAL CIRCUITS FOR POWER FACTOR CORRECTION BY MEASUREMENT AND REMOVAL OF OVERTONES AND POWER FACTOR MAXIMIZATION - Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter. | 2022-05-26 |
20220166308 | BRIDGE RECTIFIER OPERATION AND POWER FACTOR CORRECTION CIRCUIT - A power factor correction “PFC” circuit for use in AC-DC conversion comprises first and second pairs of switches connected across input and output rails in a full bridge configuration, and a controller configured to control the operation of the switches such that one pair of switches is switched on and off at an AC input frequency and the other pair of switches is switched on and off at high frequency; and the switching frequency is alternated between the pairs of switches every n cycles of the AC input/output frequency. The circuit may include inductors on both input rails and may be used in a bidirectional power supply. | 2022-05-26 |
20220166309 | INTEGRATED CIRCUIT AND POWER SUPPLY CIRCUIT - A signal output circuit including a first transistor coupled to a power supply line to receive a power supply voltage, a diode provided between the power supply line and a gate electrode of the first transistor, and a current generation circuit provided on a ground side with respect to the diode, the current generation circuit being configured to generate a current for the diode, upon turning on of the first transistor, and to increase the current, upon the power supply voltage dropping below a predetermined level. | 2022-05-26 |
20220166310 | EMC FILTER FOR ELECTROMAGNETIC REGULATION OF CONVERTER AND MANUFACTURING METHOD THEREOF - Provided is an electro-magnetic compatibility (EMC) filter including a lower bobbin having a U-shaped cross-sectional shape, a lower core including a magnetic material having a U-shaped cross-sectional shape and disposed on the lower bobbin, a bus bar disposed on the lower core, an upper bobbin having a hollow inside, having a hexahedral shape with one side open, and configured to cover an upper portion of the lower bobbin, and an upper core including a magnetic material having a plate-like shape, disposed in an internal space of the upper bobbin, and disposed on the lower core (U core) to cover the bus bar with a gap maintained by the bus bar between the upper and lower cores when the lower bobbin and the upper bobbin are coupled to each other. | 2022-05-26 |
20220166311 | ELECTRIC CONDUCTIVE PART FOR POWER CONVERSION CIRCUIT - An electric conductive part for a power conversion circuit includes a connection conductive portion and a branch portion. The connection conductive portion is configured to connect a joint portion of a battery with a capacitor that is included in the power conversion circuit. The connection conductive portion includes a path portion, which is configured to connect the joint portion with the capacitor, and a branch portion that branches from the path portion. The branch portion extends toward a control circuit board and is connected with the control circuit board. The control circuit board is configured to control drive of a switch element of the power conversion circuit. | 2022-05-26 |
20220166312 | SWITCHED CAPACITOR CONVERTER CIRCUIT AND SWITCHING CONVERTER UNIT THEREOF - A switched capacitor converter circuit includes: plural capacitors and plural switches which switch the connections of the plural capacitors periodically. In a first period, the plural switches control a first capacitor to be electrically connected between a first power and a second power, and control a second capacitor and a third capacitor to be electrically connected in series between the second power and a ground level. In a second period, the plural switches control the first capacitor and the second capacitor to be electrically connected in series between the second power and the ground, and control the third capacitor and the second capacitor to be electrically connected in parallel with the second power, thereby a second current of the second power is 4 times of a first current of the first power. | 2022-05-26 |
20220166313 | DIRECT CURRENT-DIRECT CURRENT CONVERSION CIRCUIT - A direct current-direct current conversion circuit includes: an input inductor, a first capacitor, a second capacitor, a flying capacitor, a first switch, a second switch, a first inductor, a first diode, a first buffer circuit, a third switch, a fourth switch, a second inductor, a second diode, and a second buffer circuit. A power supply, the input inductor, the first diode, the second diode, the first capacitor, and the second capacitor are sequentially connected in series. A first terminal of the flying capacitor is connected between the first diode and the second diode. A second terminal of the flying capacitor is connected between the first switch and the third switch, and the second terminal of the flying capacitor is further connected between the second switch and the second inductor. | 2022-05-26 |
20220166314 | SYSTEM AND METHOD FOR MODULAR HIGH VOLTAGE CONVERSION RATIO POWER CONVERTER - According to various embodiments, a power converter circuit is disclosed. The power converter circuit includes a plurality of voltage splitting units (VSUs) coupled to a plurality of current splitting units (CSUs). The VSUs are connected to each other in series and the CSUs are connected to each other in parallel. The VSUs each have a fixed voltage conversion ratio and are operated at a lower frequency than the CSUs. The CSUs each have an adjustable voltage conversion ratio and are operated at a higher frequency than the VSUs. | 2022-05-26 |
20220166315 | CHARGE PUMP CIRCUIT, CORRESPONDING DEVICE AND METHOD - Charge pump stages are coupled between flying capacitor pairs and arranged in a cascaded between a bottom voltage line and an output voltage line. Gain stages apply pump phase signals having a certain amplitude to the charge pump stages via the flying capacitors. A feedback signal path from the output voltage line to the bottom voltage line applies a feedback control signal to the bottom voltage line. Power supply for the gain stages is provided by a voltage of the feedback control signal in order to control the amplitude of the pump phase signals. An asynchronous logic circuit generates the switching drive signals for the gain stages with a certain switching frequency which is a function of a logic supply voltage derived from the voltage of the feedback control signal. | 2022-05-26 |
20220166316 | POWER SUPPLY CIRCUIT - A power supply circuit includes a first regulator and a second regulator. The first regulator is configured to generate a first output signal according to an input signal. A voltage value of the first output signal decreases according to the input signal and a first voltage threshold value at a power-off stage. The second regulator is configured to be enabled according to the first output signal to generate a second output signal according to the input signal. A voltage value of the second output signal decreases according to the input signal and a second voltage threshold value at the power-off stage. The second voltage threshold value is greater than the first voltage threshold value. | 2022-05-26 |
20220166317 | HALF-BRIDGE MODULE WITH PRECISE TEMPERATURE DETECTION - A half-bridge module having two switching units, each of which includes multiple transistors connected in parallel and/or in series, in particular IGBTs or MOSFETs. The transistors are arranged on a first substrate. The half-bridge module has a temperature sensor matrix having a plurality of temperature sensors, and the temperature sensors are thermally connected to the transistors at least in some regions. A temperature sensor matrix is also provided. | 2022-05-26 |
20220166318 | SOFT-START OF A DC-DC CONVERTER BASED ON CAPACITOR SWITCHING - In an embodiment a direct current to direct current (DC-DC) converter includes a first switching circuit configured to switch a supply of an input voltage to an energy storage circuit configured to generate an output voltage, a driving circuit configured to drive the first switching circuit according to a comparison between the output voltage and a comparison voltage and a soft-start circuit configured to raise the comparison voltage from a start voltage to a target voltage during a soft-start phase of the DC-DC converter having a soft-start duration, wherein the soft-start circuit comprises a soft-start capacitor configured to provide the comparison voltage during the start phase, the soft-start capacitor having a soft-start capacitance, an auxiliary capacitor having an auxiliary capacitance, a second switching circuit configured to alternately charge and discharge the auxiliary capacitor with an auxiliary current according to a clock signal having a clock frequency and a charging circuit. | 2022-05-26 |
20220166319 | DRIVER CIRCUIT FOR SWITCHING CONVERTERS - A DC-DC switching converter includes power switches selectively coupling an output terminal with a first voltage or with a second voltage. A driver stage is coupled with the power switches for driving the power switches. A driver control stage is coupled with the driver stage for controlling the operation of the driver stage. An output current sensing circuit is coupled with the output terminal and with the driver control stage, and is configured to sense a sign of an output current delivered by the DC-DC switching converter at the output terminal and to generate control signals for the driver control stage. The driver control stage controls the operation of the driver stage according to states of the control signals received from the output current sensing circuit, for selectively delaying the activation of the power switches depending on the sensed sign of the output current. | 2022-05-26 |
20220166320 | SWITCHING CONVERTER - In an embodiment, a switching converter includes: a switching stage including first and second switching devices for receiving an input voltage and for providing an output voltage; a driving stage including first and second driving devices for driving the first and second switching devices, respectively; a current sensing arrangement for sensing an output current provided by the switching stage; a voltage generation arrangement configured to generate a supply voltage for powering the driving stage, the voltage generation arrangement being configured to adjust the supply voltage according to the sensed output current; and a charge recovery stage configured to store a first electric charge being lost from the first driving device during driving of the first switching device and to release at least partially the stored first electric charge to the second driving device during driving of the second switching device. | 2022-05-26 |
20220166321 | SWITCHING CONVERTER - In an embodiment, a switching converter includes: a switching stage configured to receive a direct current input voltage, receive a driving signal for driving the switching stage, and provide a direct current output voltage according to the input voltage and the driving signal; a driving stage configured to provide the driving signal to the switching stage; a current sensing circuit configure to sense an output current provided by the switching stage; and a voltage generation circuit configured to generate at least one supply voltage for powering the driving stage, and adjust the at least one supply voltage according to the output current. | 2022-05-26 |
20220166322 | DRIVER CIRCUIT AND METHOD FOR PROVIDING A PULSE - A driver circuit may include a first inductor with a first terminal coupled to a first voltage terminal and a first switch with a first and a second terminal. The first terminal of the first switch is coupled to a second terminal of the first inductor via a first node and the second terminal of the first switch is coupled to a second voltage terminal. Moreover, the driver circuit may include a diode with a first terminal coupled to the first node, an output terminal, and a first capacitor with a first electrode coupled to a second terminal of the diode and a second electrode coupled to the output terminal. | 2022-05-26 |
20220166323 | RIPPLE SUPPRESSION IN MULTI-PHASE BUCK CONVERTERS - Methods and systems for ripple suppression in multi-phase buck converters may comprise a buck converter for providing an output voltage with controlled ripple current. The buck converter may include one or more main buck converter stages and one or more suppression buck converter stages coupled with the one or more main buck converter stages. The one or more suppression buck converter stages may provide suppression currents to reduce ripple currents generated in the one or main buck converter stages. | 2022-05-26 |
20220166324 | RESONANT SWITCHING POWER CONVERTER AND DRIVING CIRCUIT THEREOF - A resonant switching power converter includes: a power stage circuit and a driving circuit. The power stage circuit includes: a resonant capacitor, a resonant inductor and switches. The driving circuit includes: drivers for driving the switches; and a power supply circuit for providing driving powers to the drivers. The power supply circuit includes: a voltage booster circuit generating a booster power supply according to a clock signal, a DC voltage and an output related signal; driving capacitors, wherein a voltage across each driving capacitor corresponds to one driving power; and supply diodes, which are coupled in series from the booster power supply along a forward direction of the supply diodes. A backward end of each supply diode is coupled to a positive end of one corresponding driving power, to charge one corresponding driving capacitor, thus generating the corresponding driving power. | 2022-05-26 |
20220166325 | INPUT-PARALLEL OUTPUT-SERIES MULTI-CONVERTER SWITCHING POWER SUPPLY - A multi-converter switching power supply includes a first switching converter with a first output capacitor, a second switching converter with a second output capacitor, a bypass switch coupled across the second output capacitor, and a bypass control circuit for controlling the bypass switch. Input terminals of the first and switching converters are coupled in parallel, while output terminals of the first and switching converters are coupled in series to provide a total output voltage to a load. When detecting that the second output voltage approaches a negative voltage, the bypass control circuit turns on the bypass switch, so as to protect the second output capacitor from being damaged by a reverse DC voltage. | 2022-05-26 |
20220166326 | SWITCHING CIRCUIT WITH CONTROLLABLE ACTIVE CLAMP FUNCTION - A switching circuit includes a power switch, an active clamping circuit, and an active clamping control unit. When the power switch is modulated between an ON state and an OFF with a predetermined frequency, the active clamping control unit is configured to activate the function of the active clamping circuit for absorbing the energy of voltage surges. When the power switch is operating in the ON state or the OFF state, the active clamping control unit is configured to deactivate the function of the active clamping circuit for preventing the counter EMF from damaging the power switch. | 2022-05-26 |
20220166327 | RESONANT CONVERTER WITH PRECISE FEEDBACK CONTROL AND CONTROL METHOD THEREOF - A controller used in a resonant converter having a switching circuit and a resonant tank. The switching circuit has a high side switch and a low side switch. The controller has a feedback processing circuit for providing a reference signal based on a feedback signal. The reference signal changes at a first slope based on the feedback signal when the feedback signal is higher than a first voltage threshold, and the reference signal changes at a second slope based on the feedback signal when the feedback signal is lower than the first voltage threshold. The turning off of the high side switch is controlled by a high side off signal, which is generated based on the reference signal and a voltage sampling signal indicative a voltage across a resonant capacitor of the resonant tank. | 2022-05-26 |
20220166328 | DC-TO-DC CONVERTER HAVING A SECONDARY RESONANT CIRCUIT CAPACITOR, AND METHOD FOR OPERATING A DC-TO-DC CONVERTER - A DC-to-DC converter includes a primary side of a transformer element of the DC-to-DC converter and a secondary side of the transformer element, the primary side having a first rectifier circuit and a primary-side resonant circuit and the secondary side having a second rectifier circuit and a secondary-side stored energy source, the transformer element being arranged between the primary side and the secondary side in order to transfer electrical energy, the secondary side having a secondary resonant circuit capacitor. | 2022-05-26 |
20220166329 | POWER CONVERTER APPARATUS CONVERTING INPUT POWER INTO OUTPUT POWER HAVING OUTPUT VOLTAGE OVER WIDE RANGE WITH HIGHER EFFICIENCY - A power conversion device is equipped with at least one leg circuit containing two switching elements connected in series, respectively, a transformer having a primary winding and a secondary winding, a capacitor connected between the leg circuit and one end of the primary winding, a switch circuit, and a rectifier circuit. The switch circuit selectively connects one of a plurality of winding sections of the secondary winding that are different from each other to the rectifier circuit | 2022-05-26 |
20220166330 | SWITCHING POWER SUPPLY APPARATUS FOR REDUCING COMMON MODE NOISE DUE TO LINE-TO-GROUND CAPACITANCES - A switching power supply apparatus is provided with a switching circuit and an even number of transformers. The transformer are provided with: cores each having an identical shape; primary windings each having an identical arrangement around the cores, and each having first and second terminals; and secondary windings each having an identical arrangement around the cores, and each having third and fourth terminals. The primary windings of the transformers are connected so that when a current flows from the first terminal to the second terminal of a first transformer, a current flows from the second terminal to the first terminal of a second transformer. The secondary windings of the transformers are connected so that when a current flows from the third terminal to the fourth terminal of the first transformer, a current flows from the fourth terminal to the third terminal of the second transformer. | 2022-05-26 |
20220166331 | DC-TO-DC CONVERTER - A DC-to-DC converter includes a first DC side, a second DC side, a first capacitor, a first switch circuit, a magnetic element circuit, a second switch circuit, and a second capacitor. The DC-to-DC converter is adapted for converting between a first DC voltage and a second DC voltage. The magnetic element circuit is electrically coupled to the first switch circuit, and includes a plurality of magnetically coupled windings and an inductor. An oscillating current flowing in the first switch circuit is generated by controlling the first switch circuit and the second switch circuit, and an oscillating frequency of the oscillating current is determined by the capacitance of the first capacitor and the inductance of the inductor in the magnetic element circuit, and the first switch circuit and the second switch circuit are switched at a specific region of a wave trough of the oscillating current. | 2022-05-26 |
20220166332 | PARALLEL INTERLEAVING OPERATED BIDIRECTIONAL DC-DC CONVERTER AND METHOD AND APPARATUS FOR CONTROLLING THE SAME - The present disclosure relates to a new bidirectional low voltage DC-DC converter (LDC), that is, a DC-DC converter capable of satisfying a safety level required for an eco-friendly vehicle and an autonomous vehicle and improving power conversion performance, and a method and an apparatus for controlling the same. The LDC proposed in the present disclosure is a new concept bidirectional LDC in which a plurality of converters having the same power circuit topology are subjected to a parallel interleaving operation so as to enable both a buck operation and a boost operation, satisfy a high safety level, and improve power conversion performance. To this end, a plurality of bidirectional active-clamp flyback converters (for example, two or more bidirectional active-clamp flyback converters) are connected in parallel and are interleaved and controlled by a controller (for example, a microcomputer). | 2022-05-26 |
20220166333 | SYNCHRONOUS RECTIFICATION CONTROL CIRCUIT AND METHOD, AND FLYBACK SWITCHED-MODE POWER SUPPLY - A synchronous rectification control circuit and method, and a flyback switched-mode power supply (SMPS) are provided. A voltage adjustment circuit is used to adjust a value of a first voltage signal that represents an output voltage, such that a voltage-second product of a difference between the output voltage and a drain-source voltage of a secondary-side synchronous rectifier can be zeroed in time in a transient process, and no false accumulation occurs. In this way, when a primary-side transistor switch is turned on, the secondary-side synchronous rectifier is turned off, to avoid a case in which the primary-side transistor switch and the secondary-side synchronous rectifier are simultaneously turned on. | 2022-05-26 |
20220166334 | Step-Wise Power Transformation - A system for transforming the voltage of AC electrical energy by resonant charge exchange between a first node and a second node. The system includes a capacitor or series-connected column of capacitors and a controller that is configured to cause the system to repetitively conduct a primary charge exchange by resonantly exchanging energy between the capacitor or the series-connected column of capacitors and the first node, and then electrically isolate the capacitor or the series-connected column of capacitors. During the electrical isolation the system can electrically reconfigure the series-connected column of capacitors. The system then conducts a secondary charge exchange by resonantly exchanging energy between the capacitor or the reconfigured series-connected column of capacitors and the second node. | 2022-05-26 |
20220166335 | METHOD AND DEVICE FOR MONITORING THE HYBRIDIZATION OF AN AIRCRAFT - Method for monitoring the distribution of power in a hybrid propulsion system comprising one or more electrical sources delivering an AC voltage, each of which is associated with an AC-to-DC controlled rectifier and one or more batteries, wherein, the AC-to-DC controlled rectifier and the battery each being connected directly to an HVDC bus supplying one or more electrical loads with power, the monitoring of the distribution of power is performed through the individual AC-to-DC controlled rectifier by a feedback loop to a power setpoint (Pref) on the basis of a measured power of the battery (Pbat) and a feedback loop to a voltage setpoint (Vref) on the basis of a measured voltage of the HVDC bus (V | 2022-05-26 |
20220166336 | WIND ENERGY INSTALLATION HAVING AN INVERTER DEVICE FOR GENERATING AN AC VOLTAGE, AND CORRESPONDING METHOD - A method for generating at least one AC voltage using at least one inverter device is provided. The inverter device in each case includes comprises at least one voltage input for applying an input voltage, at least one voltage output for outputting an output voltage and at least one DC voltage intermediate circuit for providing an intermediate circuit voltage. The method includes controlling an AC voltage at the voltage output so as to output a first portion of an input power in the form of useful power, or to receive the input power or a portion thereof, and changing a system voltage of the inverter device such that at least one compensation current flows through at least one load resistor, in order thereby to output a second portion of the input power or the entire input power to the at least one load resistor in the form of excess power. | 2022-05-26 |
20220166337 | SEMICONDUCTOR DEVICE, ELECTRIC POWER CONVERSION DEVICE, AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE - A semiconductor device includes: a semiconductor element that converts DC electric power into AC electric power; a DC terminal that transmits DC electric power; an AC terminal that transmits AC electric power; a sealing member that seals the semiconductor element, at least a part of the DC terminal, and at least a part of the AC terminal; and at least one floating terminal that is arranged between the DC terminal and the AC terminal. | 2022-05-26 |
20220166338 | POWER CONVERSION DEVICE - In a power conversion device, an incorrect mounting suppressing mechanism provided on a housing and an inverter module restricts movement of the inverter module with respect to the housing in a first direction. The inverter module includes a switch that moves between an OFF position at which a connection between a bus bar and a terminal can be cut off and an ON position at which a connection between the bus bar and the terminal can be made. The incorrect mounting suppressing mechanism includes a stopper on the housing and an interference member connected to the switch that moves between the restriction position and the retracting position as the switch moves. The restriction position overlaps the stopper viewed from the first direction when the switch is in the ON position. The retracting position retracts from the stopper viewed from the first direction when the switch is in the OFF position. | 2022-05-26 |
20220166339 | HIGH EFFICIENCY CHARGING SYSTEM AND POWER CONVERSION CIRCUIT THEREOF - A power conversion circuit includes an inductive switching power converter and a capacitive switching power converter. The inductive switching power converter switches an inductor to converter a DC power to a first power. The capacitive switching power converter switches a conversion capacitor to convert the first power to a charging power for charging a battery. The inductive switching power converter and the capacitive switching power converter flexibly operate in and dynamically switch between a regulation mode, a bypass mode or a combination thereof according to a parameter of the DC power. | 2022-05-26 |
20220166340 | VOLTAGE CONVERTER - A voltage converter delivers an output voltage between a first and a second node. The voltage converter includes a capacitor series-coupled with a resistor between the first and second nodes. The resistor is coupled in parallel with a bidirectional switch receiving at its control terminal a positive bias voltage referenced to the second node. | 2022-05-26 |
20220166341 | SWITCHED ENERGY BUFFERING - Systems and method herein provide for energy buffering. In one embodiment, a system includes an energy buffer comprising at least two energy storage elements. Each energy storage element is operable to buffer electrical energy. The system also includes a switch module operable to charge a first of the at least two energy storage elements while discharging a second of the at least two energy storage elements, and to discharge the first energy storage element while charging the second energy storage element after charging the first energy storage element. The switched charging of the energy storage elements compensates voltage variations between the energy storage elements to increase available electrical energy from the energy buffer. | 2022-05-26 |
20220166342 | METHOD FOR CONTROLLING POWER CONVERSION DEVICE AND POWER CONVERSION DEVICE - A method for controlling a power conversion device can prevent over temperature by suppressing a change in impedance of a capacitor included in a rectifier circuit. The power conversion device includes an AC wave generation circuit for generating an AC wave, and a rectifier circuit for rectifying the AC wave generated by the AC wave generation circuit with a configuration including a rectifier capacitor and a diode connected in parallel. The method for controlling the power conversion device regulates the AC wave input to the rectifier capacitor depending on a change in impedance of the rectifier capacitor so as to suppress the change in the impedance of the rectifier capacitor. | 2022-05-26 |
20220166343 | SOLID-STATE TRANSFORMER HAVING UNINTERRUPTED OPERATION ABILITY UNDER AC/DC FAULT AND CONTROL METHOD THEREOF - In a solid-state transformer having an uninterrupted operation ability under an AC/DC fault, bridge arms of a hybrid modular multilevel converter comprise half-bridge submodules and full-bridge submodules, the half-bridge submodules and the full-bridge submodules are interconnected with input ends of the isolated dual-active-bridge converters via DC capacitors of the submodules, output ends of the plurality of isolated dual-active-bridge converters are connected in parallel to form a low-voltage DC bus, and the three-phase full-bridge inverter is connected to the low-voltage DC bus. The solid-state transformer provided by the present invention may be provided with four ports including a medium-voltage AC port, a medium-voltage DC port, a low-voltage DC port and a low-voltage AC port which are beneficial to the interconnection of multi-voltage-grade and multi-form AC/DC hybrid distribution grids; and the solid-state transformer has the uninterrupted operation ability under the AC/DC fault. | 2022-05-26 |
20220166344 | POWER SYSTEM AND PULSE WIDTH MODULATION METHOD THEREFOR - A power system includes a pulse width modulation device. The pulse width modulation device outputs first, second, third and fourth driving signals. The pulse width modulation device receives a control signal. The control signal is divided into a positive periodic signal and a negative periodic signal. A portion of the positive periodic signal higher than or equal to a maximum threshold voltage is clamped as the maximum threshold voltage to generate a first comparison waveform. The positive periodic signal is clamped as the reference voltage level to generate a second comparison waveform. According to the first comparison waveform, a first ramp signal is generated. According to the second comparison waveform, a first pulse width modulation signal is generated. The first, second, third and fourth driving signals are adjusted according to the first ramp signal and the first pulse width modulation signal. | 2022-05-26 |
20220166345 | CONTROL DEVICE, ELECTRIC COMPRESSOR, AND CONTROL METHOD - An embodiment of the present invention provides a control device comprising: an electric detection unit which detects an electric physical quantity relating to a head capacitor provided between a DC power supply and an inverter switching element; and a protection control unit which controls the inverter switching element in accordance with a change in the electric physical quantity so that no electric current flows to the head capacitor. | 2022-05-26 |
20220166346 | METHOD AND APPARATUS FOR GENERATING A THREE-PHASE VOLTAGE - We describe techniques to reduce DC ripple voltage in an inverter by determining a plurality of switching events for each of the three phases in each Pulse Width Modulation (PWM) period. The switching events provide a desired target output voltage for the respective PWM period. From this determination of the switching events, a comparison can be made to determine a first time period between a first and second switching event across all of the phases, and a second time period between the second and a third switching event across all of the phases. The timing of one or more switching events in only one of the phases in the respective PWM period is adjusted in response to the determined time period being greater than a threshold in order to reduce the determined first or second time period. | 2022-05-26 |
20220166347 | POWER CONVERSION CIRCUIT ENERGIZATION UNIT - A power conversion circuit energization unit includes a bus bar module and a conductive fixing bolt. The bus bar module includes conductive P and N bus bars connected to a switch element in a power conversion device and an insulative terminal block on which the bus bars are located. The fixing bolt fixes the terminal block to a housing in which the switch element is housed. A head of the fixing bolt and the P bus bar are separated from each other in an axial direction along which a shaft of the fixing bolt extends while facing each other. | 2022-05-26 |
20220166348 | SINGLE CRYSTAL ULTRASONIC TRANSDUCER WITH CHARGE MODE RECEIVER - Apparatus, systems, and methods for acoustic transmission via tubular are provided. A transceiver comprises a piezoelectric transducer; a switch coupled to the piezoelectric transducer; a charge mode receiver coupled to the switch; and a transmitter coupled to the switch. | 2022-05-26 |
20220166349 | METHOD FOR SENSING ABNORMALITY OF PIEZOELECTRIC DRIVE DEVICE, PIEZOELECTRIC DRIVE DEVICE, AND ROBOT - A method for sensing an abnormality of a piezoelectric drive device is a method for sensing a vibration abnormality of the piezoelectric drive device having a substrate and thin-film piezoelectric elements placed on the substrate and controlling amplitude of the piezoelectric elements using a drive control signal, and the method includes sensing the vibration abnormality by a drive voltage corresponding to the drive control signal. | 2022-05-26 |
20220166350 | PIEZO THERMAL ELECTRIC DEVICE TO HARVEST ENERGY FOR RAIL BASED TRANSPORTATION - A piezo electric and thermal harvesting method for rail-transportation systems. The method embodies a three-dimensional arrangement of piezo vertebrae configured in parallel within a track housing that is operatively associated with the rail of the rail-transportation system. Weight from rail traffic compresses the track housing and thus the piezo vertebrae, thereby generating electricity. Thermal control incorporates a chill beam within the track housing as well as a multi-wire thermal electric couple wiring scheme. | 2022-05-26 |
20220166351 | ELECTRODE PAIRS HAVING SAW-TOOTH CONFIGURATION AND ARTIFICIAL MUSCLES INCLUDING SAME - An electrode pair is provided including a first electrode and a second electrode. Each of the first electrode and the second electrode have an outer surface, an inner surface, a first end, a second end, and a lead extending outwardly from the first end. The lead has a first width at the first end. The second end of at least one of the first electrode and the second electrode have a recess formed therein having a first terminus and a second terminus. A second width extends between the first terminus and the second terminus of the recess. The recess is defined by a saw-tooth pattern. When the first electrode is positioned on the second electrode, the recess of the at least one of the first electrode is adjacent the lead of the other electrode. | 2022-05-26 |
20220166352 | CONTROL DISTRIBUTION ARCHITECTURE - A system for providing electric motor control to a plurality of motor loads includes one or more motor controllers arranged to drive one or more of the loads, switching means configured to selectively provide electrical connections between the one or more motor controllers and the loads. and a controller arranged to configure the switching means to connect one or more of the motor controllers to one or more of the loads in response to a control signal. The number of motor controllers is less than the number of motor loads to be controlled. | 2022-05-26 |
20220166353 | MOTOR CONTROLLER - A motor controller is configured to stabilize the motor current. The motor controller is used for driving a motor. The motor controller comprises a switch circuit, a control unit, and a phase detecting unit. The phase detecting unit generates a phase signal to the control unit for switching phases. The phase signal sequentially generates a first, second, third, fourth, fifth and sixth time interval. The first to sixth time intervals correspond to first to sixth phases, respectively. The motor controller further comprises a first driving time for driving the motor in the fifth phase, where the first driving time is related to the first time interval. The motor controller further comprises a second driving time for driving the motor in the sixth phase, where the second driving time is related to the second time interval. | 2022-05-26 |
20220166354 | RESISTANCE DETERMINATION IN AN ELECTRIC MOTOR ASSEMBLY - An electric motor assembly is configured to determine a motor winding resistance value. Predicted values are determined for a first and second position of motor commutator sections relative to the motor brushes, with at least one of the brushes contacting different numbers of the sections in the first position and the second position. The predicted values are based on a temperature value measured by the temperature sensor and a predetermined dependence of variation of the motor resistance dependent on the temperature value. An electric motor current value is measured by a current sensor when the electric motor is substantially at standstill. A selection is made between different factors for determining the motor resistance value using the electric current value, dependent on which of the predicted values most closely corresponds to the electric current value. The motor resistance is determined using said electric current value according to the selected factor. | 2022-05-26 |
20220166355 | CURRENT SENSING CORRECTION METHOD AND DRIVING SYSTEM USING SAME - A current sensing correction method for a driving system is provided. Firstly, the detection values of a three-phase current are acquired through the measuring unit. When the three-phase current is maintained at the DC state, the DC values of the three-phase current are acquired and recorded as three-phase demagnetization values. When the detection values are zero, a d-axis current and a q-axis current are calculated according to the three-phase demagnetization values, a d-axis correction current command and a q-axis correction current command are calculated according to a proportional constant, the d-axis current and the q-axis current, and a three-phase demagnetization current is generated to the measuring unit according to the d-axis correction current command and the q-axis correction current command. When the demagnetization time reaches the first predetermined time, the three-phase demagnetization current is not generated. | 2022-05-26 |
20220166356 | CONTROLLER FOR ROTARY ELECTRIC MACHINE - To provide a controller for rotary electric machine which can suppress the increase in the switching frequency by the voltage for estimation while reducing the estimation delay of the magnetic pole position (the rotational angle). A controller for rotary electric machine turns on and off switching devices which the inverter has and applies voltage to the winding, based on a comparison result between the voltage command and the carrier wave; generates the voltage command for estimation of a preliminarily set one period on a stationary coordinate system fixed to the winding; generates the carrier wave of the same one period as the one period of the voltage command for estimation; extracts the frequency component of the one period of the voltage command for estimation from the current detection value; and estimates a rotational angle based on the frequency component. | 2022-05-26 |
20220166357 | Ripple Counter With Dynamic Bandpass Filter for DC Motor - Disclosed is a ripple counter with a dynamic bandpass filter for a DC motor. The ripple counter includes a current sense amplifier configured to provide an analog voltage responsive to an inline current in rotor windings of the DC motor. The ripple counter also includes an analog-to-digital converter configured to provide a digital signal responsive to the analog voltage. The ripple counter also includes a digital filter configured to receive the digital signal and a clock signal and configured to vary a frequency response to provide a filtered ripple current. The ripple counter also includes a digital comparator circuit configured to receive the filtered ripple current and to provide a pulsed output. The ripple counter also includes a clock generator configured to detect the frequency of the pulsed output and to provide the clock signal responsive to the detected frequency. | 2022-05-26 |
20220166358 | METHOD FOR THE NOISE-REDUCED OPERATION OF A SWITCHED RELUCTANCE MOTOR - A method for the noise-reduced operation of a switched reluctance motor with a reluctance motor assembly. The assembly includes the switched reluctance motor; —a control and evaluation unit; —a data memory; —a current regulator; —a rotor angle sensor; and —a torque evaluator. The switched reluctance motor includes a stator, a rotor and motor coils. The size of the current applied to the motor coils is stored in a value table in the data memory for different rotor angles. An actual torque is detected, and a deviation between a setpoint torque and the determined actual torque is determined. On the basis thereof, the current values are recalculated. The recalculated current values are written into the value table and define the basis of the next run. | 2022-05-26 |
20220166359 | MOTOR CONTROLLER - A motor controller comprises a switch circuit, a driving circuit, and a pulse width modulation circuit. The switch circuit is coupled to a three-phase motor for driving the three-phase motor. The driving circuit generates a plurality of control signals to control the switch circuit. The pulse width modulation circuit receives a first pulse width modulation signal for generating a second pulse width modulation signal to the driving circuit, where the first pulse width modulation signal has a first duty cycle, and the second pulse width modulation signal has a second duty cycle. When the motor controller starts a floating phase to detect a back electromotive force of the floating phase, the motor controller enables the second duty cycle to be greater than or equal to a minimum value. | 2022-05-26 |
20220166360 | ROTARY ELECTRIC MACHINE CONTROL DEVICE - A rotary electric machine control device is configured to control driving of a rotary electric machine having a motor winding. The rotary electric machine control device includes a plurality of inverter units and a plurality of control units. Each of the plurality of inverter units is configured to switch current supply to the motor winding. The plurality of control units are configured to communicate with each other. Each of the plurality of control units is configured control a corresponding inverter, select a drive mode, monitor an abnormality, and store abnormality information according to an abnormality monitor result. | 2022-05-26 |
20220166361 | POWER CONVERTER, DRIVE, AND POWER STEERING DEVICE - A power converter that converts power from a power source and supplies the converted power to a motor includes an inverter connected to a winding of the motor and including switches that generate heat along with power control operation, and a substrate on which the switches are mounted. A first switch of the switches is mounted in a first region on the substrate, and a second switch that generates more heat than the first switch is mounted in a second region having a higher heat dissipation than a heat dissipation of the first region. | 2022-05-26 |
20220166362 | MOTOR CONTROLLER, MOTOR SYSTEM AND METHOD FOR CONTROLLING MOTOR - A motor controller | 2022-05-26 |
20220166363 | MOTOR CONTROLLER, MOTOR SYSTEM AND METHOD FOR CONTROLLING MOTOR - A motor controller | 2022-05-26 |
20220166364 | MOTOR CONTROL METHOD, MOTOR CONTROL MODEL CONVERSION METHOD, MOTOR CONTROL SYSTEM, MOTOR CONTROL MODEL CONVERSION SYSTEM, AND MOTOR CONTROL MODEL CONVERSION PROGRAM - A motor control method inputs one or more controlled variables or target values each representing a state of a motor to one or more node layers as an input value, and performs calculation in each of the one or more node layers to output one or more manipulated variables used for control of the motor and control the motor in accordance with the one or more manipulated variables. Each the one or more node layers has a plurality of nodes that execute calculations in parallel. Each of the plurality of nodes multiplies the input value by a coefficient specified for the corresponding node, and performs calculation using a function specified for the corresponding node and designating a multiplied value as an input variable to determine an output value. | 2022-05-26 |
20220166365 | CONTROL DEVICE - A control device is configured to control an operation of a control target. The control device is configured to monitor an abnormality. The control device is configured to store abnormality information according to an abnormality monitor result. When the abnormality of a monitor target is detected, an abnormality treatment confirmation determination related to a transition determination to an abnormality treatment due to an occurrence of the abnormality is different from an abnormality storage confirmation determination that causes the control device to store, as the abnormality information, the abnormality of the monitor target. | 2022-05-26 |
20220166366 | FEATURE SET AND METHODS FOR A DIGITAL POSITIONER - A digital positioner for a valve includes a valve controller configured to obtain a set point value for a valve travel of a valve, and generate a pulse-width modulated current signal based on the set point value. The digital positioner also includes a current-to-pressure converter configured to receive the pulse-width modulated current signal from the valve controller, convert the pulse-width modulated current signal to a pulse-width modulated pressure signal, and provide the pulse-width modulated pressure signal to a pneumatic actuator in the valve to adjust a position of the valve. | 2022-05-26 |
20220166367 | ACTUATOR CONTROL METHOD - Embodiments provide controlling an actuator such that inaccurate actuator control caused by the heat created when the actuator moves can be compensated. In some embodiments, a temperature sensor is implemented in an actuator controller outside of the actuator, and the temperature sensor is connected to the actuator through heat conductive materials. In these embodiments, the cost and the form factor of the aforementioned actuator is reduced compared to implementation of temperature sensors within the actuator. | 2022-05-26 |
20220166368 | MOTOR DRIVE ELECTRONICS USING THERMOELECTRIC MATERIAL - System and methods for motor drive electronics are provided. Aspects include receiving, by a controller on a motor driver electronics (MDE) component, voltage data associated with a thermoelectric generator, wherein the MDE component is configured to operate an electric motor, and wherein the MDE component comprises a power card including one or more components, determining a temperature reading based on the voltage data, enacting an action associated with the MDE component based at least in part on the temperature reading. | 2022-05-26 |
20220166369 | POWER GENERATION ELEMENT - According to one embodiment, a power generation element includes a first conductive region including a first surface, a plurality of second conductive regions, and a plurality of insulating structure regions. The second conductive regions are arranged along the first surface. A gap is provided between the second conductive regions and the first surface. One of the structure regions is provided between one of the second conductive regions and the first surface. An other one of the structure regions is provided between an other one of the second conductive regions and the first surface. | 2022-05-26 |
20220166370 | Roof Ready Roof Mounts - A roof mount system and related method for installing solar panel racking components on a roof structure at the time of roof installation during building construction or roof replacement. The roof mount apparatus includes at least one flashing, at least one flashing projection, at least one fastener, a block member, a seal member and a cap member. The at least one fastener connects the at least one flashing member to the roof structure to secure the block member and the seal member. The seal member provides a water-tight securement and reduces wear and tear of the roof structure. The cap, fastener, and block are removable, and once removed, additional solar racking components are installed. This embodiment reduces the up-front cost of the solar components, and provides aesthetically pleasing low-profile temporary mounts to the roof surface. | 2022-05-26 |
20220166371 | Solar Panel For Pitched Roof And Construction Method Thereof - A solar panel for pitched roof and construction method of the solar panel are disclosed. The solar panel includes a substrate, a first bonding layer, an insulating layer, a second bonding layer, a solar cell module layer, a third bonding layer, a brightness enhancement film layer, a fourth bonding layer and a transparent fluorine element film layer from bottom to top. Since the peripheral fixing area of the substrate has fixing holes for fixing purposes, the solar panels of the present invention can replace the existing asphalt shingles and be applied on the pitched roof, and have the characteristics such as water removal, moisture resistance, extreme temperature resistance and windproof. The solar panel can not only provide renewable energy, but its neat appearance can also increase the beauty of the pitched roof. | 2022-05-26 |
20220166372 | PHOTOVOLTAIC SHINGLES AND METHODS OF INSTALLING SAME - A system includes a plurality of photovoltaic shingles installed on a roof deck, each of the shingles having a first layer including a head lap portion, and a second layer including at least one solar cell. A first photovoltaic shingle overlays at least a part of the head lap portion of a second photovoltaic shingle. The system includes at least one wireway installed proximate to a first end of at least the first photovoltaic shingle. | 2022-05-26 |
20220166373 | ARTICULATING JOINT SOLAR PANEL ARRAY - Systems and methods for providing and controlling solar panel arrays are provided. The solar panel array may include one or more articulating joints that may provide variability in the arrangement of solar panels, which may allow the solar panel array to be distributed over varying types of underlying surfaces. The articulating joints may allow orientations of solar panels to be different relative to one another. The articulating joints may convey rotational force across the joints, so that a rotational force used to drive a first solar panel may also be conveyed across the joint and used to drive a second solar panel. The controls system may include row-specific semi-autonomous, or autonomous, controllers as well as controllers to interface with multiple rows. The controllers may include sensors to measure system power generation and basic operations aspects of the solar field to directly measure, or infer, module shading within the solar field. The controller may use this shading and operations data to identify shading, mitigate shading, identify methods to increase power generation, and identify optimum tilt angles for the tracker rows. | 2022-05-26 |
20220166374 | PHOTOVOLTAIC MODULE FRAME, PHOTOVOLTAIC SUPPORT ASSEMBLY AND PHOTOVOLTAIC MODULE - A photovoltaic module frame, a photovoltaic support assembly and a photovoltaic module are provided. The photovoltaic module frame includes an installation part. The top of the installation part is provided with at least one meshing structure for meshing with the bottom of a press block. By providing a meshing structure on the top of the installation part, the meshing structure is meshed with the bottom of the press block to increase the contact area between the installation part of the photovoltaic module frame and the bottom of the press block, thereby increasing the meshing force, and preventing the photovoltaic module frame from separating from the press block especially when the wind is strong. | 2022-05-26 |
20220166375 | SOLAR COLLECTOR CLEANING DEVICE - An autonomous solar collector cleaning device includes at least one main shaft, a first driver attached to a first end of the at least one main shaft, and a second driver attached to a second end of the at least one main shaft. The first and second drivers propel the cleaning device along a surface of the solar collector. A first sensor is attached to the first driver to detect an edge of the solar collector, and a second sensor is attached to the second driver to detect the edge of the solar collector. A control circuit maintains alignment of the cleaning device with respect to the solar collector based on outputs from the first and second sensors. | 2022-05-26 |
20220166376 | KIT OF PARTS FOR A SOLAR MODULE SYSTEM, METHOD FOR PRODUCING A SOLAR MODULE SYSTEM, AND USE OF A SPACER - A kit comprising a solar module having a positive-pole cable comprising a positive pole plug, and a negative pole cable comprising a negative-pole plug, a spacer. The spacer comprises a first flat part spanning a first flat part plane together with first flat part outer edges, and a further flat part spanning a further flat part plane together with further flat part outer edges. The first flat part has fixing means and/or the further flat part has further fixing means. The first flat part and the further flat part configured to be mounted on one another such that the first flat part plane is arranged at a fixing angle to the further flat part plane and forms, between the first flat part plane and the further flat part plane, a plug recess located a distance from the first flat part outer edges and the further flat part outer edges. | 2022-05-26 |
20220166377 | METHOD, APPARATUS, AND SYSTEM FOR DETECTING SOLAR CELL OF PHOTOVOLTAIC PLANT - This application discloses a method and an apparatus for detecting a solar cell of a photovoltaic plant. The method includes: obtaining a first infrared image and a second infrared image, where the first infrared image includes infrared image information corresponding to an ambient infrared signal reflected by a to-be-detected solar cell operating in a short-circuit state, the second infrared image includes infrared image information corresponding to an infrared signal emitted by the to-be-detected solar cell operating in a first state and infrared image information corresponding to an ambient infrared signal reflected by the to-be-detected solar cell, and the first state is another state other than the short-circuit state; and detecting, based on the first infrared image and the second infrared image, whether the to-be-detected solar cell has a defect. | 2022-05-26 |
20220166378 | OSCILLATOR AND METHOD OF MANUFACTURING SAME - An oscillator includes a package having a plurality of external terminals disposed on a mounting surface, a circuit element housed in the package, and a resonator which is housed in the package, and is electrically coupled to the circuit element, wherein the circuit element is electrically coupled to the package with a plurality of pads each of which is bonded to the package via a bump member, the circuit element has a rectangular shape in a plan view, and at least three of closest ones to four corners of the circuit element out of the bump members are bonded to the package at respective positions overlapping the plurality of external terminals in the plan view. | 2022-05-26 |
20220166379 | Vibration Device - A vibration device includes a base including a semiconductor substrate and through electrodes that pass through the portion between first and second surfaces of the semiconductor substrate, and a vibrator fixed to the first surface via an electrically conductive joining member. The following components are placed at the second surface: an oscillation circuit that is electrically coupled to the vibrator via the through electrodes and generates an oscillation signal by causing the vibrator to oscillate, a temperature sensor circuit, a temperature compensation circuit that performs temperature compensation on the oscillation signal, and an output buffer circuit that outputs a clock signal based on the oscillation signal. Dsx12022-05-26 | |
20220166380 | SYSTEM FOR ENABLING EXTERNAL OSCILLATORS IN SYSTEM-ON-CHIPS - An enabling system that includes a controller and processing circuitry, is configured to enable an external oscillator that operates in one of single-ended, differential, and crystal modes. To enable the external oscillator, the controller is configured to detect a mode of operation of the external oscillator, and the processing circuitry is configured to operate in the detected mode. The controller detects the mode of operation of the external oscillator by sequentially initializing the processing circuitry to operate in the single-ended, differential, and crystal modes, and determining whether the current operating mode of the processing circuitry is same as the mode of operation of the external oscillator based on a clock signal outputted by the processing circuitry during the corresponding mode. | 2022-05-26 |
20220166381 | CIRCUIT FOR EXTENDED VOLTAGE CONTROL OSCILLATOR GAIN LINEARITY - A voltage controlled oscillator (VCO) circuitry includes a varactor array. The varactor array includes a first varactor unit including a first varactor, a second varactor, and first switch circuitry. The first varactor is connected to a first node and a second node, and the second varactor is connected to the second node and a third node. The second node receives a voltage control signal. The first switch circuitry is electrically coupled to the first node and the third node, and selectively electrically couples a first voltage signal to the first node and the third node based on a first control signal. | 2022-05-26 |
20220166382 | OSCILLATOR CIRCUIT HAVING LOW JITTER AND INSENSITIVITY TO TEMPERATURE CHANGES - An oscillator circuit includes an initial level setting circuit configured to operate in an on-state during an initial operation of the oscillator circuit to supply a first level voltage to a first node and a second level voltage to a second node, a switching circuit configured to connect a power supply voltage terminal and a ground terminal to the first or second node in response to first and second clock signals having different phases after the initial operation, a signal generation circuit connected between the first and second nodes and configured to perform charging and discharging operations based on a potential difference between the first and second nodes, and generate first and second voltages determined by the charging and discharging operations, and an inverter circuit configured to generate the first clock signal based on the first voltage, and generate the second clock signal based on the second voltage. | 2022-05-26 |
20220166383 | OSCILLATOR - There is configured an oscillator characterized by including an outer package having a housing space, an inner package housed in the housing space, a resonator element housed in the inner package, a heater element housed in the housing space, and fixed to the inner package, an oscillation circuit configured to oscillate the resonator element, a conducting member configured to electrically couple the inner package and the heater element to each other, and a first bonding wire configured to couple the heater element and the outer package to each other, and configured to electrically couple the conducting member and the outer package to each other. | 2022-05-26 |
20220166384 | NO-LOAD-MODULATION, HIGH-EFFICIENCY POWER AMPLIFIER - Apparatus and methods for a multiclass, broadband, no-load-modulation power amplifier are described. The power amplifier ( | 2022-05-26 |
20220166385 | AMPLIFIER WITH STACKED TRANSCONDUCTING CELLS IN PARALLEL AND/OR CASCADE "CURRENT MODE" COMBINING - An amplifier with stacked transconducting cells in parallel and/or cascade “current mode” combining is disclosed herein. In one or more embodiments, a method for operation of a high-voltage signal amplifier comprises inputting, into each transconducting cell of a plurality of transconducting cells, a direct current (DC) supply current (Idc), an alternating current (AC) radio frequency (RF) input current (I | 2022-05-26 |
20220166386 | AMPLIFIER WITH STACKED TRANSCONDUCTING CELLS IN CURRENT MODE COMBINING - An amplifier with stacked transconducting cells in “current mode combining” is disclosed herein. In one or more embodiments, a method for operation of a high-voltage signal amplifier comprises inputting, into each transconducting cell of a plurality of transconducting cells, a direct current (DC) supply current (Idc), an alternating current (AC) radio frequency (RF) input current (I | 2022-05-26 |
20220166387 | AUDIO PROCESSOR CIRCUIT AND AUDIO PROCESSING METHOD - An audio processor circuit includes a storage circuit, a digital-to-analog converter circuit, and an amplifier circuit. The storage circuit is configured to store digital audio data from an electrical device. The digital-to-analog converter circuit is configured to convert the digital audio data from the storage circuit into an analog audio signal. The amplifier circuit is configured to provide an output audio signal to an audio playing circuit according to the analog audio signal. If a total data volume of the digital audio data stored in the storage circuit is not a multiple of a throughput or the total data volume of the digital audio data stored in the storage circuit is equal to or greater than an upper limit value, the amplifier circuit is turned off such that the amplifier circuit stops providing the output audio signal to the audio playing circuit. | 2022-05-26 |
20220166388 | POWER AMPLIFIER CIRCUIT - A power amplifier circuit includes an amplifier circuit, a bias circuit, a detector, and a control circuit. The amplifier circuit includes a first bipolar transistor. The bias circuit includes an emitter follower. The emitter follower includes a second bipolar transistor and supplies a bias current to the base of the first bipolar transistor. The detector detects the voltage of a power supply terminal connected to the collector of the first bipolar transistor. The control circuit includes a current limiting circuit disposed between a battery terminal and the collector of the second bipolar transistor. The control circuit changes an upper limit value of a control current to be supplied to the collector of the second bipolar transistor, based on the voltage detected by the detector. | 2022-05-26 |
20220166389 | PER-BRANCH, COMBINED, AND GROUPED COMBINED MIMO DPD - Systems and methods are disclosed herein for Digital Predistortion (DPD) in a Multiple Input Multiple Output (MIMO) transmitter. In some embodiments, a MIMO transmitter comprises a plurality of antenna branches comprising a respective plurality of power amplifiers coupled to a respective plurality of antenna elements. The MIMO transmitter also includes one or more DPD systems operable to predistort one or more respective groups of input signals to provide one or more respective groups of predistorted input signals for one or more respective groups of antenna branches. Each group of antenna branches comprises at least two of the plurality of antenna branches. In some embodiments, the MIMO transmitter is a massive MIMO transmitter. Embodiments of a per-branch DPD scheme for a MIMO transmitter that uses Iterative Learning Control (ILC) and kernel regression are also disclosed. | 2022-05-26 |
20220166390 | TRIMMING CIRCUIT OF DIFFERENTIAL AMPLIFIER - The present application discloses a trimming circuit of differential amplifier, wherein an output end of the differential amplifier is coupled to a first input end of the differential amplifier through a first voltage-dividing resistor; a shift voltage is coupled to a second input end of the differential amplifier through a second voltage-dividing resistor; the first voltage-dividing resistor and the second voltage-dividing resistor respectively form a T-shaped resistor network structure; the T-shaped resistor network structure comprises: a k-bit resistive network coupled to a T-shaped node and a reference power supply end, wherein a low n-bits of the k-bit resistive network is an R-2R resistive network, and part of branches are connected in series with at least one trimming resistor, and each trimming resistor is connected in parallel with a switch. | 2022-05-26 |
20220166391 | AMPLIFIER - The amplifier includes an input circuit configured to convert an input signal into a current; an output circuit comprising at least one switching element for reducing a voltage change of an output end of the input circuit and configured to provide an output signal; and a biasing circuit connected to the at least one switching element to form a feedback loop for reducing the voltage change of the output end of the input circuit. | 2022-05-26 |
20220166392 | POWER CONTROL AND INDICATOR FOR PREAMP OF ACOUSTIC STRING INSTRUMENT - A power control and indicator device for coupling to an acoustic string instrument preamp is provided. The device includes a light emitting diode having an anode terminal and a cathode terminal, a switch having a first terminal and a second terminal, the switch having a closed position that closes a circuit between the first and second terminal and an open position that opens the circuit between the first and second terminal, a battery connector having a positive terminal and a negative terminal, the battery connector adapted to couple to a battery, a preamp connector having a positive terminal and a negative terminal, whereby with a battery connected to the battery connector, wherein with the switch in the closed position, the light emitting diode is powered and illuminates and the battery connector is coupled to the preamp connector, the battery provides power to the preamp connector, and wherein with the switch in the open position, the light emitting diode is not powered and does not illuminate and the battery connector is not coupled to the preamp connector and the battery does not provide power to the preamp connector. | 2022-05-26 |
20220166393 | CLASS-AB STABILIZATION - Aspects of the description provide for a circuit. In some examples, the circuit includes a input pair of transistors, a bias transistor having a bias transistor gate, a bias transistor drain, and a bias transistor source, the bias transistor drain coupled to the input pair of transistors and the bias transistor source coupled to ground, and a resistor coupled between the bias transistor gate and the input pair of transistors. | 2022-05-26 |
20220166394 | VOLTAGE CONVERTER AND CLASS-D AMPLIFIER - A voltage converter comprising: a bootstrap circuit, comprising an output capacitor, an error amplifier, a charging control circuit and a charging circuit. The charging control circuit comprises: a detection circuit, configured to detect an output voltage of the output capacitor to generate a detection signal; and a power limiting circuit, configured to clamp an output voltage of the error amplifier to a specific range based on the detection signal . The charging circuit is configured to generate a charging signal according the output voltage of the error amplifier to the bootstrap circuit, to charge the output capacitor. | 2022-05-26 |
20220166395 | INTEGRATED CIRCUIT WITH AN INPUT MULTIPLEXER SYSTEM - An integrated circuit includes a multiplexer circuit configured to provide an output signal on a conductive line, a programmable gain amplifier having a non-inverting input connected to the conductive line to receive the output signal from the multiplexer, a slew rate adjust circuit connected at a first node on the conductive line between the multiplexer circuit and the programmable gain amplifier, a first switch including a first terminal connected to the first node and a second terminal connected to the input of the programmable gain amplifier, and a low pass filter connected between the first and second terminals of the first switch. | 2022-05-26 |
20220166396 | SYSTEM AND METHOD FOR ADAPTIVE SOUND EQUALIZATION IN PERSONAL HEARING DEVICES - Embodiments of systems and methods for adaptive sound equalization in personal hearing devices are disclosed. In some embodiments a microphone in a personal hearing device receives sound from the listener's environment. The sound then is analyzed to determine one or more desired targets, for instance loudness level or spectral balance. The determined targets then are used to control adaptive processing of the sound received by the microphone to generate a perceptually improved sound to render to the listener. | 2022-05-26 |
20220166397 | METHOD FOR PERFORMING NORMALIZATION OF AUDIO SIGNAL AND APPARATUS THEREFOR - A method for performing loudness normalization by an audio signal processing device includes: receiving an audio signal; receiving information relating to integrated loudness of the audio signal; receiving information relating to target loudness of the audio signal; obtaining a corrected integrated loudness by correcting the integrated loudness based on one or more audio processing; and obtaining a normalized audio signal by normalizing the audio signal based on the corrected integrated loudness and the target loudness. | 2022-05-26 |
20220166398 | PROCESS FOR FABRICATING A COMPONENT COMPRISING A LAYER MADE OF SINGLE-CRYSTAL MATERIAL COMPATIBLE WITH HIGH THERMAL BUDGETS - A process for fabricating a component includes an operation of transferring at least one layer of one or more piezoelectric or pyroelectric or ferroelectric materials forming part of a donor substrate to a final substrate, the process comprising a prior step of joining the layer to a temporary substrate via production of a fragile separating region between the donor substrate of single-crystal piezoelectric or pyroelectric or ferroelectric material and the temporary substrate, the region comprising at least two layers of different materials in order to ensure two compounds apt to generate an interdiffusion of one or more constituent elements of at least one of the two compounds make contact, the fragile region allowing the temporary substrate to be separated. | 2022-05-26 |
20220166399 | FILTER CIRCUIT FOR PREVENTING REVERSE INFLOW OF ELECTROMAGNETIC WAVES - According to the present disclosure, a filter for reducing electromagnetic noise discharged through a line connected to the positive terminal B(+) of the battery is designed, but there is a problem that noise is rather introduced through this filter. However, in the filter circuit of the present disclosure, noise reversely introduced through the filter may be blocked by arranging an inductor for the filter in an expected inflow path of noise. | 2022-05-26 |
20220166400 | APPARATUS FOR PREVENTING BACK INTRODUCTION OF ELECTROMAGNETIC WAVE NOISE INTO IGNITION SYSTEM - An apparatus, as an electromagnetic wave back introduction blocking module connected between an ignition (IG) system and a converter, includes a front capacitor module which includes a first coil part including one or more coils having one side connected to the IG system in series and a first capacitor part connected between the other side of the first coil part and a ground, a central coil module which includes a second coil part including one or more coils having one side connected to the other side of the first coil part and a second capacitor part connected between the other side of the second coil part and the ground, and a rear capacitor module which includes a third capacitor part having one side connected to the other side of the second coil part. The rear capacitor module is connected to the converter. | 2022-05-26 |
20220166401 | TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATORS WITH IMPROVED EDGE EFFECTS - Acoustic resonators, acoustic filter devices and methods of making the same. An acoustic resonator device includes a piezoelectric plate having front and back surfaces, an interdigital transducer (IDT) on the front surface including interleaved fingers, an overlapping distance of the interleaved fingers defining an aperture of the acoustic resonator device, and a modified acoustic velocity region proximate an edge of the aperture. | 2022-05-26 |
20220166402 | STRUCTURE OF SURFACE ACOUSTIC WAVE DEVICE AND METHOD FOR FABRICATING THE SAME - A surface acoustic wave (SAW) device including a substrate is provided. Multiple surface acoustic wave elements are disposed on the substrate. A conductive surrounding structure includes: a wall part, disposed on the substrate and surrounding the surface acoustic wave elements; and a lateral layer part, disposed on the wall part. The lateral layer part has an opening above the surface acoustic wave elements. A cap layer covers the lateral layer part and closes the opening. | 2022-05-26 |