Control Of Current Or Power Patents (Class 307/31)
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Patent number: 10673236Abstract: By virtue of the ability to vary local load via inverter (e.g., solar PV inverter) volt-ampere reactive power (VAR) injection, local demand and energy consumption can be controlled at a system level. Utilities that provide solar PV systems to consumers can leverage this ability to reduce the purchase of high cost energy. Moreover, revenue for such utilities can be maximized. For example, such localized voltage and VAR control allow for precise control to achieve, e.g., plus or minus about two percent of kW and kWHr of power consumed at a node.Type: GrantFiled: December 9, 2015Date of Patent: June 2, 2020Assignee: Varentec, Inc.Inventors: Deepakraj Divan, Rohit Moghe
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Patent number: 10666048Abstract: A method, apparatus, system and computer program is provided for controlling an electric power system, including implementation of voltage measurement using paired t statistical analysis applied to calculating a shift in average usage per customer from one time period to another time period for a given electrical use population where the pairing process is optimized using a novel technique to improve the accuracy of the statistical measurement.Type: GrantFiled: January 11, 2018Date of Patent: May 26, 2020Assignee: Dominion Energy, Inc.Inventors: Edmund J. Hall, Stephen J. Tyler
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Patent number: 10663992Abstract: This application provides a voltage control circuit, method and device, and a storage medium. The voltage control circuit includes: a controller and a voltage adjustment circuit both coupled to a power supply terminal for providing a power supply voltage. The controller is configured to: acquire a power supply voltage value at the power supply terminal; determine whether the acquired power supply voltage value deviates from a target power supply voltage value; and determine, in response to the acquired power supply voltage value deviating from the target power supply voltage value, a target control signal associated with the target power supply voltage value; and provide the target control signal to the voltage adjustment circuit. The voltage adjustment circuit is configured to adjust the power supply voltage value at the power supply terminal to the target power supply voltage value according to the target control signal.Type: GrantFiled: June 26, 2019Date of Patent: May 26, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Jianfu Liu
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Patent number: 10667438Abstract: A method for determining whether to perform maintenance for an electronic device includes generating a baseline characterization of thermal performance for a heat-generating component of the electronic device at a baseline date. The method also includes generating an assessment characterization of the thermal performance at an assessment date after the baseline date. The method further includes generating a historical trend that includes the baseline characterization and the assessment characterization. Additionally, the method includes determining whether to perform maintenance for the heat-generating component based on the historical trend and a specified maintenance parameter.Type: GrantFiled: December 27, 2012Date of Patent: May 26, 2020Assignee: Intel CorporationInventors: Robin A. Steinbrecher, Nishi Ahuja, Sandeep Ahuja
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Patent number: 10666052Abstract: In one embodiment, a transistor driver includes a first line as a power supply line configured to supply a first voltage, a second line as a power supply line configured to supply a second voltage, and a first controlling transistor provided between the first line and the second line and configured to control a gate voltage of a first transistor to be driven. The driver further includes a third line configured to supply a third voltage that controls a gate voltage of the first controlling transistor, and a power supply circuit connected to the first, second and third lines and configured to vary the third voltage. The driver further includes a depletion P-type transistor including a gate connected to the first line, a drain connected to the second line, and a source connected to the third line.Type: GrantFiled: February 23, 2018Date of Patent: May 26, 2020Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventor: Yukio Tsunetsugu
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Patent number: 10651652Abstract: Systems, methods, and computer media for managing frequency response in a power grid are provided herein. Individual grid-connected electrical devices can be turned on and/or off by corresponding frequency-responsive load controllers when frequency deviations beyond a threshold are detected. Each controller selects, for the corresponding electrical device, a frequency threshold from available frequencies in a frequency range. If the selected frequency falls within a deadband frequency range, then the controller sets the frequency threshold to a frequency outside of the deadband (e.g., to a closest available frequency outside of the deadband). On a system-wide level, this approximates a uniform distribution of frequency thresholds over the entire frequency range, including the deadband, and achieves the proper power-to-frequency relationship for grid stability.Type: GrantFiled: April 22, 2016Date of Patent: May 12, 2020Assignee: Battelle Memorial InstituteInventors: Jianming Lian, Yannan Sun, Laurentiu D. Marinovici, Karanjit Kalsi, Jacob Hansen
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Patent number: 10651753Abstract: A flyback converter with secondary side control and synchronous rectifier (SR) architecture and method for operating the same are provided. Generally, the secondary side controller includes an integrated circuit (IC) including a single SR-SNS pin coupled to a drain of a SR on a secondary side of the converter to sense a voltage on the drain, and a power switch (PS) drive pin coupled to a PS on a primary side to turn on the PS in response to a number of measurements based on the voltage sensed on the drain of the SR. The IC includes a calibration block to measure a loop turn-around delay, valley delays with respect to zero-crossing and set timing for a signal to turn on the PS in response to the voltage sensed on the drain of the SR at or very close the primary side valley improving efficiency and performance of the converter.Type: GrantFiled: June 27, 2019Date of Patent: May 12, 2020Assignee: Cypress Semiconductor CorporationInventors: Arun Khamesra, Hariom Rai
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Patent number: 10644688Abstract: A driver circuit for use in a controller includes a signal generator coupled to generate a first control signal and a second control signal in response to a drive signal that is coupled to control switching of a secondary switch that is to be coupled to the driver circuit and referenced to a reference voltage that is greater than a ground reference voltage. A second switch is coupled to be controlled by the second control signal such that the reference voltage is substantially applied to a control of the secondary switch when the drive signal controls the secondary switch to be off. A first switch is coupled to be controlled by the first control signal such that the sum of the reference voltage and a first voltage is substantially applied to the control of the secondary switch when the drive signal controls the secondary switch on.Type: GrantFiled: May 11, 2018Date of Patent: May 5, 2020Assignee: Power Integrations, Inc.Inventor: Zhao-Jun Wang
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Patent number: 10620896Abstract: An information processing apparatus capable of changing a state of power supply to respective parts of the apparatus with less user operation. When a sleep recovery button is depressed in a power saving mode, a button depression time is measured, and whether a length of the measure depression time exceeds a threshold value is determined. If the depression time exceeds the threshold value, a normal power mode is selected as power mode after transition. If the depression time does not exceed the threshold value, another power saving mode is selected as power mode after transition. According to the selected power mode, a state of power supply to respective parts of the apparatus is changed.Type: GrantFiled: November 13, 2017Date of Patent: April 14, 2020Assignee: CANON KABUSHIKI KAISHAInventor: Kazuhiro Koga
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Patent number: 10611496Abstract: A power system for an aircraft includes a plurality of power consumers each operable to consume power in a range from zero to maximum power demand and collectively capable of consuming a combined maximum power demand, a power source operable to output power to the power consumers and a power allocation system operable to allocate power from the power source to the power consumers based on an operational parameter of the aircraft. The power allocated by the power allocation system is less than the combined maximum power demand of the power consumers, thereby allowing the power source to have a maximum power output less than the combined maximum power demand of the power consumers.Type: GrantFiled: January 22, 2018Date of Patent: April 7, 2020Assignee: Textron Innovations Inc.Inventors: Eric A. Sinusas, Bradley Paul Regnier, Aaron Alexander Acee, Charles Hubert Speller, Marc Ouellet
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Patent number: 10615682Abstract: An electrically driven vehicle inverter device includes a smoothing capacitor, a discharge resistor, a discharge resistor and first and second discharge switching elements connected in series between both ends of the smoothing capacitor, and a clamp circuit provided for at least one of the first and second discharge switching elements. The clamp circuit includes a reverse flow prevention element and a constant voltage generation element that causes a constant voltage drop when a voltage across the constant voltage generation element exceeds a value determined in advance, for example.Type: GrantFiled: September 15, 2016Date of Patent: April 7, 2020Assignee: AISIN AW CO., LTD.Inventors: Yasushi Nakamura, Tomoya Hirano
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Patent number: 10606219Abstract: A power supply device which can be connected to an external device and flexibly distribute power is provided. A control circuit of the power supply device, when detecting that a shell connecting point of the power supply device is electrically connected to an external connecting point of a first external device, determines whether a type of the first external device is a load device and records device information related to the first external device in a power routing table. If yes, the control circuit transmits the power routing table to the first external device and then, instructs the power routing circuit to adjust a switch thereof according to a path table returned from the first external device so as to power the first external device. A power transferring device, a power supply method and a power transferring method are also provided.Type: GrantFiled: September 15, 2017Date of Patent: March 31, 2020Assignee: Wistron CorporationInventors: Wei-Lun Liu, Sheng-Hung Wang, Lee-Chun Ko
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Patent number: 10601250Abstract: A half bridge power converter can be coupled to, or included in, a wireless transmitter device. The half bridge power converter includes an upper switching element connected between a direct current supply voltage and a lower switching element. A duty controller is coupled to the upper and the lower switching elements and is configured to asymmetrically control the duty cycles of the upper and lower switching elements based on a voltage level of the direct current supply voltage. In general, the duty cycle of the lower switching element is different than the duty cycle of the upper switching element. Additionally or alternatively, the duty controller is configured to determine and control the duty cycles of the upper and lower switching elements to adjust a direct current gain of a wireless energy transfer system that includes the wireless transmitter device.Type: GrantFiled: March 31, 2017Date of Patent: March 24, 2020Assignee: APPLE INC.Inventors: InHwan Oh, Shimon Elkayam, Manisha P. Pandya
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Patent number: 10594213Abstract: An apparatus, method, and system for actively controlling supply voltage distribution and computational tasks performed by a number of processor cores in a load element of a series string load is provided. An I/O block and a local controller in a given load element manage external communications and internal data and power, respectively. The local controller tests the processor cores for functionality and error-free computation time requirements by providing test input data after various propagation delays and comparing a computed output result to a known correct result. The timing tests may be repeated at different power supply voltages. The local controller may deem processor cores non-functional, idle processor cores deemed unusually slow, and/or adjust processor core supply voltages to best dynamically manage the load element. The local controller seeks to produce most error-free computations at the highest possible speed and at the lowest overall load element power dissipation.Type: GrantFiled: February 20, 2019Date of Patent: March 17, 2020Assignee: Blockchain ASICs LLCInventors: Edward L. Rodriguez De Castro, Sagar V. Reddy
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Patent number: 10581319Abstract: The present invention provides a LLC resonant converter with magnetic-flux balance control circuit. The LLC resonant converter comprises a primary-side circuit and a secondary-side circuit, wherein the control loop of secondary-side circuit comprises a voltage control unit, a digital pulse-width-modulation generation unit, and the control loop of primary-side circuit comprises a DC detection unit, a balance control unit, a digital pulse-width-modulation generation unit.Type: GrantFiled: July 24, 2019Date of Patent: March 3, 2020Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Yuan-Chih Lin, Ching-Jan Chen
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Patent number: 10560062Abstract: Driving circuitry is described that includes multiple programmable bias voltages useful for biasing radio-frequency components such as PIN diodes and gallium-nitride devices. Programmable voltages as high as 30 volts and as low as ?20 volts are generated. The drive circuitry can operate from a single, low-voltage power source.Type: GrantFiled: November 18, 2016Date of Patent: February 11, 2020Assignee: MACOM Technology Solutions Holdings, Inc.Inventors: Brendan Foley, Michelle Dowling, Chi Mo
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Patent number: 10560022Abstract: An apparatus includes an integrated circuit chip with a set of circuits having two or more subsets of circuits; an external voltage regulator separate from the integrated circuit chip; two or more integrated voltage regulators on the integrated circuit chip that each provide an input voltage to a respective subset of the circuits; and a controller. The controller determines, using an integrated voltage regulator power loss model, an electrical power loss for the integrated voltage regulators for a first combination of operating points for the subsets of the circuits. The controller then determines, based on the electrical power loss, a second combination of operating points for the subsets of the circuits that includes an adjustment to an operating point for at least one of the subsets of the circuits that compensates for an electrical power loss of the corresponding integrated voltage regulator.Type: GrantFiled: June 13, 2019Date of Patent: February 11, 2020Assignee: ADVANCED MICRO DEVICES, INC.Inventors: Wei Huang, Miguel Rodriguez, Karthik Rao
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Patent number: 10554149Abstract: A method and a system sense at least one phase difference between at least two phases of a group of parallel connected three phase AC output terminals (e.g., a first phase AC output terminal, a second phase AC output terminal, or a third phase AC output terminal). The parallel connected AC output terminals may be three parallel connected DC to AC three phase inverters. Features of the parallel connected three phase AC output terminals enable wiring of conductors to one phase of an AC output terminal to be swapped with wiring of conductors of one phase of another phase AC output terminal. A sign of at least one phase difference is verified different from signs of other phase differences thereby the system determining the lateral position of the at least one three phase inverters relative to at least one other of the three phase inverters.Type: GrantFiled: November 16, 2018Date of Patent: February 4, 2020Assignee: Solaredge Technologies Ltd.Inventors: Omer Aloni, Alon Zohar, Tzachi Glovinsky, Menashe Walsh
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Patent number: 10551858Abstract: A computer program product and an apparatus are provided. The computer program product includes a computer readable medium and program instructions embodied therein, wherein the program instructions are executable by a processor to cause the processor to perform various operations. The operations include obtaining, for each phase in a voltage regulator having multiple phases, values of at least one operating parameter over a period of time. The operations further include determining, for each phase in the multi-phase voltage regulator, a wear score as a function of the obtained values of at least one operating parameter. Still further, the operations include selecting a default phase, from among the multiple phases, that has a wear score indicating that the phase has less cumulative wear than any of the other phases, and instructing the voltage regulator to turn on the selected phase as a default phase when only one phase is turned on.Type: GrantFiled: April 22, 2019Date of Patent: February 4, 2020Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.Inventors: Luke D. Remis, Brian C. Totten
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Patent number: 10543376Abstract: Several defibrillators, defibrillator architectures, defibrillator components and methods of operating defibrillators are described. In one aspect, a defibrillator (as for example an automated external defibrillator) that can be powered by a mobile communication device such as a smart cellular phone or a tablet computer is described. Utilizing a phone (or other mobile communication device) as the power supply for an external defibrillator allows the external defibrillator to be smaller and, in some circumstance, removes the need for a battery that stores sufficient energy for shock delivery—which would need to be checked and/or replaced on a regular basis. Additionally, when desired, certain control functionality, computation, data processing, and user instructions can be handled/presented by the mobile communications device thereby further simplifying the defibrillator design and improving the user experience.Type: GrantFiled: December 7, 2017Date of Patent: January 28, 2020Assignee: Avive Solutions, Inc.Inventors: Rory M. Beyer, Charles Stonewall Montgomery
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Patent number: 10530154Abstract: A control apparatus includes a receiving unit, a demand response unit, a power consumption fluctuation unit, a fluctuation-amount-estimation unit and an adjustment control execution unit. The receiving unit receives a demand pertaining to power consumption sent from an energy management apparatus. The demand response unit executes a demand-response control in order to adjust total power consumption of a plurality of devices set up in a property in accordance with the demand. The power consumption fluctuation unit executes a non-demand-response control in order to cause total power consumption to fluctuate regardless of the demand. The fluctuation-amount-estimation unit estimates a power consumption that will fluctuate due to the non-demand-response control during the demand-response control.Type: GrantFiled: July 2, 2014Date of Patent: January 7, 2020Assignee: Daikin Industries, Ltd.Inventor: Chikara Maeda
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Patent number: 10523052Abstract: A wireless power transfer system includes a power receiver and a power transmitter providing power using an inductive power signal. The power transmitter includes a resonance circuit having capacitive and inductive impedances, and a driver configured to generate a drive signal for the resonance circuit. A frequency modification circuit is configured to control the resonance frequency of the resonance circuit by slowing a state change for the capacitive and/or inductive impedance for a fractional time interval of at least some cycles of the drive signal, The frequency modification circuit is configured to align at least one of a start time and an end time for the fractional time interval to transitions of a timing signal. In the power transmitter, the driver is configured to generate the timing signal to have transitions synchronized to the drive signal. The slowing may be by impeding current flow between the capacitive and inductive impedances.Type: GrantFiled: September 14, 2015Date of Patent: December 31, 2019Assignee: Koninklijke Philips N.V.Inventors: Wilhelmus Gerardus Maria Ettes, Antonius Adriaan Maria Staring, Klaas Jacob Lulofs, Eddy Gerrit Veltman
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Patent number: 10523025Abstract: A voltage error signal is provided to a PWM controller of a voltage regular and used to produce a PWM signal that drives a power stage of the regulator. When operating in an adapter current limit regulation mode, an adapter current sense voltage, indicative of an adapter current, is compared to an adapter current reference voltage to produce an adapter current error signal. A compensator receives the adapter current error signal and outputs a compensated adapter current error signal. The adapter current sense voltage, or a high pass filtered version thereof, is subtracted from the compensated adapter current error signal to produce the voltage error signal provided to the PWM controller. Alternatively, an input voltage, or a high pass filtered version thereof, is added to the compensated adapter current error signal to produce the voltage error signal.Type: GrantFiled: August 28, 2017Date of Patent: December 31, 2019Assignee: Intersil Americas LLCInventors: Michael Jason Houston, Lei Zhao
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Patent number: 10484945Abstract: Some aspects described herein reduce the negative performance impact associated with the voltage droop of a user equipment (UE) battery. For example, aspects described herein may be used to configure a UE with a pattern that includes a battery recovery time period that prevents a battery voltage of the UE from falling below a critical threshold and/or reduces the likelihood of the battery voltage falling below the critical threshold. In this way, UE performance may be improved, battery performance may be improved, battery life may be extended, and/or the like.Type: GrantFiled: December 15, 2017Date of Patent: November 19, 2019Assignee: QUALCOMM IncorporatedInventors: Prashanth Akula, Alberto Rico Alvarino, Hao Xu, Xiao feng Wang, Umesh Phuyal, Kapil Bhattad, Wanshi Chen, Peter Gaal, Mungal Singh Dhanda
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Patent number: 10476368Abstract: An electrical wiring device including a housing assembly including a plurality of terminals; a sensor element configured to provide a sensor signal for monitoring at least one load power parameter of at least one electrical load; at least one variable control mechanism, the at least one variable control mechanism configured to adjustably select a user adjustable load setting; a series pass element configured to regulate output power to the at least one electrical load in accordance with the user load setting; an interface circuit coupled between the AC power, the interface circuit including at least one half wave rectifier coupled to a voltage divider configured to provide a half wave rectified signal; and a signal processing assembly including a time shifting element configured to substantially time shift the half wave rectified signal to provide a zero cross detection signal timed to occur at zero crossings in the AC power.Type: GrantFiled: November 11, 2016Date of Patent: November 12, 2019Assignee: Pass & Seymour, Inc.Inventor: Anthony Testani
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Patent number: 10468088Abstract: A memory subsystem is disclosed comprising at least one memory module, the memory module having a substrate to which a plurality of memory chips is mounted and a voltage regulator, the voltage regulator receiving a power supply signal from a system power supply and outputting two or more power signals, each power signal providing a different, regulated voltage, which regulated voltages are each routed to each of the memory chips; and a redundant voltage regulator external to and not mounted on the memory module and configured to output two or more power signals, providing external different, regulated voltages which are the same voltages as the voltages output by the voltage regulator on the memory module, and supplying the two or more signals to the memory module.Type: GrantFiled: December 15, 2017Date of Patent: November 5, 2019Assignee: International Business Machines CorporationInventors: Brian J. Connolly, Kyu-Hyoun Kim, Warren E. Maule
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Patent number: 10447052Abstract: An apparatus system is provided which comprises: a first input/output (I/O) port; a second I/O port; circuitry to generate (i) a first signal at a first voltage level and (ii) a second signal at a second voltage level; and switching circuitry to selectively supply any one of the first signal or the second signal to any one of the first I/O port or the second I/O port.Type: GrantFiled: March 23, 2017Date of Patent: October 15, 2019Assignee: Intel CorporationInventors: Sagar C. Pawar, Anantha Narayanan, Ravindra A. Babu, Aneesh A. Tuljapurkar
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Patent number: 10447168Abstract: An electronic converter comprising a switching stage comprising at least one electronic switch, wherein the switching stage is adapted to provide a current via a terminal; a first capacitor, wherein the first capacitor provides a first voltage. Specifically, converter further comprises: a second capacitor, wherein the second capacitor provides a second voltage, comparison means configured to detect the difference between the first voltage and the second voltage, and determine a comparison signal which indicates whether this difference is greater than a threshold, and switching means configured to transfer selectively current to the first capacitor or the second capacitor as a function of the comparison signal.Type: GrantFiled: September 16, 2016Date of Patent: October 15, 2019Assignee: OSRAM GMBHInventor: Francesco Angelin
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Patent number: 10437315Abstract: In one embodiment, a processor core has one or more execution units, a first memory array having a first protection circuit to provide soft error protection to the first memory array, and a control circuit. A power controller coupled to the core may include a protection control circuit, in response to an update to an operating voltage to be provided to the core, to cause the core to disable the first protection circuit. Other embodiments are described and claimed.Type: GrantFiled: June 22, 2017Date of Patent: October 8, 2019Assignee: Intel CorporationInventors: Alexander Gendler, Arkady Bramnik, Lev Makovsky
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Patent number: 10440667Abstract: Disclosed embodiments include an access terminal including a controller, an interface and a power manager. The interface can be connected to an external adapter and/or an external mobile power supply. The power manager can be connected to the interface and the controller, and can be configured to manage power supplied to the access terminal. The controller can be configured to, when confirming that the interface is not connected to the external adapter and is connected to the external mobile power supply, control the external mobile power supply to power the access terminal through the power manager.Type: GrantFiled: October 9, 2015Date of Patent: October 8, 2019Assignee: ZTE CORPORATIONInventor: Ruifeng Zhang
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Patent number: 10432015Abstract: A standby power supply device includes at least one port, at least one current detection unit, a power supply unit, and a control unit. Each port is configured to connect to an external powered device. A current detection unit is connected to one port. Each current detection unit detects the current of the port. When the current of one port exceeds a first predetermined value, the current detection unit outputs a first detection signal. The power supply unit supplies standby power to an external powered device. The control unit controls the power supply unit supply power to the external powered device when the control unit receives the detection signal from the corresponding current detection unit. When the control unit receives multiple first detection signals, the control unit controls the power supply unit to supply power to multiple external powered devices simultaneously.Type: GrantFiled: August 2, 2017Date of Patent: October 1, 2019Assignee: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.Inventors: Yu-Jen Lin, Hong-Ming Hsieh
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Patent number: 10429866Abstract: Embodiments include techniques for automatically restarting a voltage foldback circuit, the techniques include operating a circuit, and detecting a condition of the circuit. The techniques also include performing a foldback operation based at least in part on the condition of the circuit, subsequently detecting the condition of the circuit. The techniques include initiating a timer of the circuit based at least in part on the subsequent detection of the circuit, and returning the circuit to normal operation based on the timer.Type: GrantFiled: June 21, 2017Date of Patent: October 1, 2019Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Chris Eberts, Anthony Kostura
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Patent number: 10405400Abstract: A power supply system includes at least a first power supply and a second power supply and a voltage output circuit. The first power supply provides a first set of signals while the second power supply provides a second set of signals. The voltage output circuit includes a first input terminal, a second input terminal, a first output terminal, a switch circuit and a control circuit. The first input terminal receives a first voltage signal of the first set of signals while the second input terminal receives a second voltage signal of the second set of signals, the switching circuit couples between the first and the second input terminal and the first output terminal, and the control circuit activates a first or second transistor according to a voltage difference between the first and second input terminal to generate a first output voltage signal on the first output terminal.Type: GrantFiled: January 11, 2018Date of Patent: September 3, 2019Assignee: FSP TECHNOLOGY INC.Inventors: Tung-Jung Chuang, Shung-Hung Wu
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Patent number: 10396561Abstract: The present invention discloses a coordination control method of a multi-terminal VSC-HVDC transmission system. If a direct current voltage master control station shuts down, a direct current voltage control slave station takes over direct current voltage control, and remaining convertor stations keep original control modes. The takeover steps comprise that under the condition that inter-station communications are effective, the master control station sends a shutdown message to the slave station through the inter-station communications, and when the slave station monitors that the direct current voltage master control station shuts down, the slave station switches a current control mode into a direct current voltage control mode; and under the condition that inter-station communications fail or inter-station communications are absent, the slave station monitors changes of the direct current voltage of a system.Type: GrantFiled: July 1, 2013Date of Patent: August 27, 2019Assignees: NR ELECTRIC CO., LTD, NR ENGINEERING CO., LTDInventors: Yunlong Dong, Jie Tian, Gang Li, Dongming Cao, Haiying Li, Haibin Liu
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Patent number: 10396671Abstract: A switched mode DC-DC power supply includes a power circuit having an input for receiving an input voltage, an output for providing an output voltage, and four power switches coupled between the input and the output. The four power switches are arranged in a full bridge configuration. The power supply further includes a control circuit coupled to the power circuit for providing a plurality of control signals to the power switches. The plurality of control signals have a variable frequency. The control circuit is adapted to vary the frequency of the plurality of control signals, and to vary a parameter of only two of the plurality of control signals to regulate the output voltage. The parameter is a duty cycle or a phase of said two control signals. Other example switched mode DC-DC power supplies are also disclosed.Type: GrantFiled: January 20, 2017Date of Patent: August 27, 2019Assignee: Astec International LimitedInventors: Israel Gomez Beltran, Siu Lun Wu
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Patent number: 10389356Abstract: A circuit and method are provided. The circuit and method are for providing a supply voltage. The circuit includes a first transistor and a second transistor, coupled to a static power supply that supplies a constant power supply voltage. The circuit further includes a magnetic inductor having a first terminal connected to a common node between the first transistor and the second transistor and a second terminal connected to the dynamic internal power supply node, to supply a dynamic internal power supply node with a boosted voltage relative to the constant power supply voltage by resonating with at least one capacitance coupled to the dynamic internal power supply node.Type: GrantFiled: April 25, 2018Date of Patent: August 20, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bruce B. Doris, Rajiv V. Joshi, Naigang Wang
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Patent number: 10371727Abstract: Systems and methods of measuring dynamic signals for power distribution units. In one embodiment, a power distribution unit (PDU) includes an analog to digital converter (ADC) including a plurality of channels, each channel corresponding to a respective outlet of a plurality of outlets of the PDU. The PDU further includes a microprocessor coupled to the ADC and configured to measure a scale of a signal output from a first channel of the ADC, compare the scale of the signal to a sensitivity threshold, and select, for a first outlet corresponding to the first channel, a reference voltage of a plurality of reference voltages for input to the ADC based on a result of comparing. Various embodiments allow using an ADC to measure low level outlet currents of less than around 300 mA in addition to high level currents such as around 20 A.Type: GrantFiled: June 12, 2013Date of Patent: August 6, 2019Assignee: SCHNEIDER ELECTRIC IT CORPORATIONInventor: Steven M. Watson
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Patent number: 10374432Abstract: A method relating to a device (1) for driving at least one power electric load (2) with the aim of reducing the electric power liable to be consumed or which is actually consumed in a terminal installation (4) of an electrical network including an electrical energy meter behind which the device is connected. A system (12) including such a device and at least one power electric load (2) is also described. Also described is a method for exploiting a plurality of systems (12) within an electrical network as well as the applications of this method for the management of an electrical network including intermittent-production energy sources, within the framework of a service for managing reduction in electrical energy consumption and/or to supplement a service for providing sanitary hot water, and/or heating, and/or cooling, and/or for providing electricity.Type: GrantFiled: April 22, 2015Date of Patent: August 6, 2019Assignee: ERGYLINKInventor: Jerome Gilbert
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Patent number: 10345880Abstract: A power adapter hub is provided, comprising: an AC input port; a power supply circuit coupled to the AC input port for receiving AC power and having a maximum rated output power; and a plurality of output ports coupled to the power supply circuit for supplying DC power to external devices. Upon determining that the total power to be supplied might exceed the maximum rated output power, a DC power supplied through at least one of the output ports is modified, and the modified DC powers are set to ensure that the supplied power does not exceed the maximum rated output power.Type: GrantFiled: August 23, 2018Date of Patent: July 9, 2019Assignee: ADVANCED MAGNETIC SOLUTIONS LIMITEDInventor: Zeev Shpiro
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Patent number: 10340798Abstract: The present invention discloses a switching control method for a dual auxiliary power supply comprising a master control module, a main auxiliary power supply, and a sleep auxiliary power supply, wherein the master control module controls the main auxiliary power supply by a switch control unit, and is further coupled to a trigger detection circuit powered by the sleep auxiliary power supply; and the main auxiliary power supply outputs a control signal to an energy conversion module. The sleep auxiliary power supply is constantly in an operation state; under the control of the switch control unit, (1) the main auxiliary power supply is in a locked state when no trigger signal is detected or the trigger signal is invalid, and (2) the main auxiliary power supply is in an operation state when a trigger signal is detected or a startup instruction is received.Type: GrantFiled: January 22, 2018Date of Patent: July 2, 2019Assignee: Dong Guan Juxing Power Co., Ltd.Inventors: Yexin Ji, Yuefei Liao
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Patent number: 10340690Abstract: An interference suppression stage for a power supply. The interference suppression stage has an input connected to an input module of the power supply, the input module connected to an electrical supply system, an output connected to an output module of the power supply, the output module connected to an electrical load, at least two power paths connected in parallel between input and output, wherein each of the power paths are configured to be switched between an active state and an inactive state, and a control unit configured to switch at least one of the power paths to the inactive state in a saving mode. The control unit switches different power paths alternately in time to inactive in saving mode.Type: GrantFiled: October 27, 2017Date of Patent: July 2, 2019Assignee: Robert Bosch GmbHInventors: Fabian Hoffmeister, Josef Plager
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Patent number: 10334676Abstract: A lighting device includes multiple light emitting diode (LED) channels. Each LED channel is connected in parallel to an output rail of a power converter. The power converter may be a buck regulator. Each LED channel may include an LED string of one or more LEDs, a first transistor that is electrically connected between the LED string and ground, a second transistor that is electrically connected between the first transistor and ground, and a current sensing resistor that is electrically connected between the first transistor and the second transistor. This design provides for self-regulation of current across all LED channels when another LED channel is added to or deleted from the lighting device.Type: GrantFiled: May 17, 2018Date of Patent: June 25, 2019Assignee: Eaton Intelligent Power LimitedInventors: Isaac P. Dost, Daniel S. Foster, George Albert Dederich
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Patent number: 10328845Abstract: A device that provides a circuit for controlling the power supply of a plurality of groups of light sources, preferably of the light-emitting diodes type, which perform a plurality of lighting functions for an automobile vehicle. The device is noteworthy in that it enables a primary output voltage and several high-voltage secondary outputs to be produced, corresponding to the power supply requirements of the various groups of light sources, with the use of a single switch-mode converter circuit.Type: GrantFiled: March 1, 2017Date of Patent: June 25, 2019Assignee: VALEO VISIONInventors: David Boudikian, Sylvain Yvon, Jean-Philippe Alves, Irantzu Jauregi, Souheil Mazzour
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Patent number: 10320199Abstract: A power distribution module for a distributed low voltage power system can include at least one input channel configured to receive line voltage power from at least one power source. The power distribution module can also include at least one receiving feature electrically coupled to the at least one input channel, where the at least one receiving feature is configured to receive at least one replaceable circuit module. The power distribution module can further include at least one output channel electrically coupled to the at least one receiving feature, where the at least one output channel is configured to send a final low voltage (LV) signal to at least one LV device.Type: GrantFiled: April 13, 2016Date of Patent: June 11, 2019Assignee: EATON INTELLIGENT POWER LIMITEDInventors: James Christopher Andrews, Liang Fang, William Lee Shiley, James Moan
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Patent number: 10291068Abstract: A wireless power transmitter is provided which performs communication with a wireless power receiver through multiple slots. The wireless power transmitter comprises: a power converter consisting of at least one coil to convert a current into a magnetic field; and a power transmission controller that receives information associated with a power transfer phase from the wireless power receiver through at least one of the multiple slots, during the transfer of power to the wireless power receiver through the power converter, wherein the information associated with the power transfer phase contains a slot number assigned to the wireless power receiver.Type: GrantFiled: July 6, 2015Date of Patent: May 14, 2019Assignee: LG ELECTRONICS INC.Inventor: Yongcheol Park
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Patent number: 10289138Abstract: A method includes obtaining, for each phase in a voltage regulator having multiple phases, values of at least one operating parameter over a period of time. The method further includes determining, for each phase in the multi-phase voltage regulator, a wear score as a function of the obtained values of at least one operating parameter. Still further, the method includes selecting a default phase, from among the multiple phases, that has a wear score indicating that the phase has less cumulative wear than any of the other phases, and instructing the voltage regulator to turn on the selected phase as a default phase when only one phase is turned on.Type: GrantFiled: April 28, 2017Date of Patent: May 14, 2019Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.Inventors: Luke D. Remis, Brian C. Totten
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Patent number: 10270249Abstract: A demand side electric power supply management system is disclosed. The system comprises an islanded power system having a point of coupling to a supply grid. The islanded power system supplies a plurality of electric loads, each of which is associated with a load controller to control the maximum power demanded by that load. A measuring means associated with the point of coupling measures the total power transfer between the grid and the islanded system, and a system controller monitors the measured power transfer relative to a set point and provides a control signal to a plurality of load controllers. Each load controller receives substantially the same control signal and determines the maximum power which the or each load associated with the load controller is allowed to draw from the islanded power system based on information contained in the control signal.Type: GrantFiled: October 2, 2017Date of Patent: April 23, 2019Assignee: Auckland UniServices LimitedInventors: Grant Anthony Covic, John Talbot Boys, Joshua Reuben Lee
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Patent number: 10234931Abstract: Technologies are generally described for selectively charging a capacitor coupled to a memory. Example electronic devices described herein may include a memory; a capacitor coupled to the memory; a power supply configured to supply power at least to the capacitor; a switch coupled between the power supply and the capacitor; and a switch controller coupled to the switch and configured to: determine whether the electronic device is in a safety mode or in a normal mode, and control an operation of the switch, based on the determination. So, the supply of the power from the power supply to the capacitor is selectively controlled.Type: GrantFiled: May 5, 2014Date of Patent: March 19, 2019Assignee: Empire Technology Development LLCInventors: Hyun Oh Oh, Jin Sam Kwak, Ju Hyung Son
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Patent number: 10234829Abstract: A system balances current flowing through a solid-state power controller system including at least two output channels connected in parallel. The system delivers a first current to a load via a first output channel to a load, and delivers a second current to the load via a second output channel connected in parallel with the first output channel. The system further determines a first strength of the first current and a second strength of the second current, and adjusts at least one of a first resistance of the first output channel and a second resistance of the second output channel such that the first current strength is substantially equal to the second current strength.Type: GrantFiled: May 7, 2015Date of Patent: March 19, 2019Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: John A. Dickey, Josh C. Swenson, Donald G. Kilroy
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Patent number: 10218255Abstract: A power converter which converts between a first current at a first voltage provided at a first node and a second current at a second voltage provided at a second node. The power converter has a flying capacitor, an inductor and five switches. Furthermore, the power converter has a control unit to control four switches during steady state operation within a sequence of different operations states, in order to set the second voltage or the second current to a target level. In addition, the control unit detects the occurrence of a load transient at the second node, and in reaction to detecting occurrence of a load transient, to at least partially close a bypass switch, in order to provide additional current from the flying capacitor to the second node or in order to divert current from the inductor towards the reference potential.Type: GrantFiled: June 4, 2018Date of Patent: February 26, 2019Assignee: Dialog Semiconductor (UK) LimitedInventor: Holger Petersen