Control Of Current Or Power Patents (Class 307/31)
  • Patent number: 11309801
    Abstract: A secondary-side control loop for a flyback converter is provided that generates a secondary-side control signal during normal operation using a compensator. In periods of significant load changes, the compensator is bypassed so that the secondary-side control signal is generated as an open-loop signal.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: April 19, 2022
    Assignee: Dialog Semiconductor Inc.
    Inventors: Pengju Kong, Tao Li, Juyoung Yoon
  • Patent number: 11257558
    Abstract: Methods, systems, and devices for protecting components in memory from overvoltage are described. A memory system may include a voltage regulator coupled with a first voltage source and a reference circuit that is configured to output a reference signal for the voltage regulator. The reference circuit may include a transistor that is used to generate the reference signal. The memory system may also include a protection circuit that is configured to maintain a voltage between a gate of the transistor and a second node of the transistor below an upper voltage limit. The protection circuit may include a comparator that is configured to compare a difference between a voltage of the reference signal output by the reference circuit and a voltage of the first voltage source with a reference voltage. The comparator may control a pull-down circuit coupled with the output of the reference circuit based on the comparison.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: February 22, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Wei Lu Chu, Dong Pan
  • Patent number: 11251653
    Abstract: Disclosed is a system for tracking a maximum power point. The system includes an energy harvesting device, a power management integrated circuit including a switching circuit that adjusts an input voltage that is transmitted from the energy harvesting device and a conversion circuit that converts the input voltage adjusted by the switching circuit to output an output voltage, and a measuring device that calculates a ratio of a second power based on the input voltage to a first power based on an open circuit voltage of the energy harvesting device, using an internal impedance of the energy harvesting device and an input impedance of the power management integrated circuit.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: February 15, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong Pil Im, Seungeon Moon, Jeong Hun Kim, Jiyong Woo, Yeriaron Kim, Solyee Im
  • Patent number: 11211795
    Abstract: An apparatus for monitoring an electrical apparatus, the load monitoring apparatus comprising a controller which is configured to capture and process voltage and current data of an electrical apparatus, which is electrically connected with a power supply, to obtain electrical parameters of the electrical apparatus, to store the electrical parameters as measured electrical parameters, to compare the measured electrical parameters with a set of pre-stored electrical parameters, to determine whether the measured electrical parameters match with the stored electrical parameters, and to operate a power switch to turn off power supply to the electrical parameters if the measured electrical parameters do not match with the stored electrical parameters.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: December 28, 2021
    Assignee: Vicwood Prosperity Technology Limited
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng, Kwok Shing Wong
  • Patent number: 11211796
    Abstract: A method and system for locally controlling delivery of electrical power along a distribution feeder. For a feeder segment in the distribution feeder the method includes: obtaining an actual voltage magnitude at an upstream node and at a downstream node of the feeder segment, and a real power value at the upstream node; setting a target voltage phasor at the downstream node as a value when a power flow across the feeder segment is maintained, and when equal reactive power is injected at the upstream and downstream nodes that consumes all the reactive power in the feeder segment; and adjusting operation of the at least one controllable reactive power resource so that the actual voltage magnitude at the downstream node moves towards a target voltage magnitude of the target voltage phasor.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: December 28, 2021
    Assignee: Power Management Holdings (U.S.), Inc.
    Inventors: Malcolm S. Metcalfe, Severin Nowak
  • Patent number: 11206057
    Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: December 21, 2021
    Assignee: PIXART IMAGING INC.
    Inventors: Yung-Wei Chen, Yen-Chang Wang, Yen-Min Chang, Hsin-Chia Chen
  • Patent number: 11201401
    Abstract: A system includes a remote electronic tilt phase shifter module, a motor, a mechanical linkage that connects the motor to the remote electronic tilt phase shifter module, a current management circuit that generates a motor control signal responsive to a current control signal, and a driver circuit that is configured to selectively connect the motor to a power supply in response to the motor control signal.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 14, 2021
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventors: Wencai George Jing, Dale R. Moore, Sammit Patel
  • Patent number: 11189242
    Abstract: The present invention relates to a driving circuit of a display panel. A plurality of driving units produce a reference driving voltage according to a gamma voltage of a gamma circuit, respectively. A plurality of digital-to-analog converting circuits receive the reference driving voltages output by the plurality of driving units, and select one of the plurality of reference driving voltage as a data driving voltage according to pixel data, respectively. The plurality of digital-to-analog converting circuits transmit the plurality of data driving voltages to the display panel for displaying images. A voltage boost circuit is used for producing a first supply voltage and providing the first supply voltage to the plurality of digital-to-analog converting circuits. At least a voltage boost unit is used for producing a second supply voltage and providing the second supply voltage to the plurality of driving units.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: November 30, 2021
    Assignee: Sitronix Technology Corp.
    Inventors: Min-Nan Liao, Chih-Ping Su
  • Patent number: 11177731
    Abstract: A current detecting circuit of a constant on-time power converter and a method thereof are provided. The current detecting circuit includes a time detecting circuit and a sample and hold circuit. A control circuit of the constant on-time power converter outputs a lower bridge conduction signal to turn on a lower bridge switch during an on-time of each cycle of the lower bridge conduction signal. The time detecting circuit detects the on-time of a cycle of the lower bridge conduction signal. The sample and hold circuit samples and holds a current of an inductor at a detection time point of a next cycle of the lower bridge conduction signal. A time between a rising edge of a waveform of the next cycle of the lower bridge conduction signal and the detection time point is equal to half the on-time.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 16, 2021
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Ming-Liang Tsai, Shih-Chung Wei
  • Patent number: 11139692
    Abstract: A system includes a switch network coupled to a power source, wherein the switch network comprises a plurality of power switches, a transmitter resonant tank coupled to the plurality of power switches, wherein the transmitter resonant tank comprises a first variable capacitance network, a transmitter coil coupled to the transmitter resonant tank, and a first receiver comprising a first receiver coil configured to be magnetically coupled to the transmitter coil, and a first receiver resonant tank coupled to the first receiver coil, wherein the first receiver resonant tank comprises a second variable capacitance network.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: October 5, 2021
    Assignee: Quanten Technologies Limited
    Inventor: Hengchun Mao
  • Patent number: 11122948
    Abstract: A cleaner includes: a suction motor that generates a suction force; and an operation unit that is configured to input control instruction for the suction motor. The operation unit includes: a support frame; a first push part that is rotatably seated on the support frame and allows an instruction to turn on or off the suction motor to be input when being rotated in a first direction; and a second push part that allows the intensity of the suction force of the suction motor to be adjusted when being rotated in a second direction.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: September 21, 2021
    Assignee: LG Electronics Inc.
    Inventors: Philjae Hwang, Mantae Hwang, Jungbae Hwang, Eunji Sung, Taekgi Lee
  • Patent number: 11122663
    Abstract: A method of determining the power consumption of a lighting device, the lighting device comprising a lamp unit for emitting illumination to illuminate a space, and a powering device which supplies an electrical power signal to power the lamp unit to emit said illumination. The method comprises: storing power consumption data of a plurality of types of powering device under different lamp unit loading conditions; at the lamp unit, determining a type of the powering device to which the lamp unit is coupled; at the lamp unit, determining an operating status of the lamp unit; determining the corresponding power consumption of the powering device from the stored power consumption data, based on the determined type of powering device, and the operating status of the lamp; and calculating the total power consumption of the lighting device as the sum of the power consumption of the powering device and the lamp unit.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: September 14, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Harald Josef Günther Radermacher, Peter Deixler
  • Patent number: 11112082
    Abstract: The present invention relates to a vehicular LED lamp for freezing prevention using transparent conductive oxide (ITO). The vehicular LED lamp includes: a housing made of a heat dissipation material, and opened at a front side thereof, the housing including an outer shell formed to protect internal constituent elements; a headlamp LED PCB unit including one or more LEDs configured to drive a headlamp to identify the position of a vehicle; and an ITO conductive heating member deposited on the inner surface of a head lens of the LED lamp, which is coupled to the housing, the head lens being formed by depositing a diffusion preventing layer on a substrate thereof, and depositing an ITO thin film on the diffusion preventing layer, followed by thermal treatment and crystallization, thereby improving the light-outputting efficiency of an LED chip and reducing the energy consumption of the LED lamp.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: September 7, 2021
    Assignee: CRESLITE. CO., LTD
    Inventor: Dong Sun Kim
  • Patent number: 11111720
    Abstract: A driver may be used to drive an electrically controllable optically active material in a privacy structure. In some examples, the driver receives power from a power source at a supply voltage and a supply apparent power level and converts the power received from the power source down to a converted voltage and a converted apparent power level. The converted voltage is less than the supply voltage and the converted apparent power level is less than the supply apparent power level. The driver may deliver power at the converted voltage and the converted apparent power level to a voltage convertor, which increase the converted voltage to an operating voltage. The driver can further condition power received from the voltage convertor having the operating voltage and operating apparent power level to provide a drive signal and provide the drive signal the electrically controllable optically active material of the privacy structure.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: September 7, 2021
    Assignee: Cardinal IG Company
    Inventors: Chad Peters, Nicholas Schleder, Eric Bjergaard
  • Patent number: 11106271
    Abstract: 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: Grant
    Filed: September 17, 2019
    Date of Patent: August 31, 2021
    Assignee: Intel Corporation
    Inventors: Alexander Gendler, Arkady Bramnik, Lev Makovsky
  • Patent number: 11095213
    Abstract: The present disclosure relates to a head-wearable hearing device comprising a switched capacitor DC-DC converter. Said switched capacitor DC-DC converter comprises a plurality of individually controllable semiconductor switches and a plurality of flying capacitors. A controller is connected to respective control terminals of the plurality of individually controllable semiconductor switches to configure first and second converter sections to form first and second converter topologies, respectively.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: August 17, 2021
    Inventors: Dennis Øland Larsen, Martin Vinter
  • Patent number: 11054446
    Abstract: The present disclosure provides a system and method including: a first USB port and one or more second USB ports provided on the multi-port adapter; an AC-DC conversion configured to measure a first load current at the first USB port; a plurality of buck-boost mode power conversion units, each configured to measure a second load current at a corresponding one or more second USB ports; and a system controller configured to measure the first load current and the one or more second load currents, wherein the system controller is configured to compare and adjust the measured first load current and the measured one or more second load currents to, respectively, a first rated current and a corresponding second rated current for each of the one or more second USB ports.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: July 6, 2021
    Assignee: SILICONCH SYSTEMS PVT LTD
    Inventors: Burle Naga Satyanarayana, Rakesh Kumar Polasa, Shubham Paliwal, Satish Anand Verkila
  • Patent number: 11050248
    Abstract: There is provided an optimization model and methods for quick track of a Static Voltage Stability Region (SVSR) boundary of a power system. The methods include using a base power flow as a starting point to track a first power system SNB point by a traditional OPF and mapping the SNB point to obtain an SVSR boundary point, and includes repetitively changing a power stress direction to a new direction and tracking a power system SNB point in the new power stress direction and mapping the power system SNB point to obtain a new SVSR boundary point, and includes returning to the first power system SNB point if the power stress direction angle is ?0; repetitively changing the power stress direction to a new direction and tracking a power system SNB point and mapping the power system SNB point to obtain a new SVSR boundary point.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 29, 2021
    Assignee: NORTHEAST ELECTRIC POWER UNIVERSITY
    Inventors: Tao Jiang, Xue Li, Haoyu Yuan, Houhe Chen, Guoqing Li, Mingyu Zhang, Xiaohui Li, Rufeng Zhang, Changjiang Wang, Song Zhang
  • Patent number: 11043899
    Abstract: A multi-stage, multi-level DC-DC step-down converter includes a first stage and a second stage having two identical cells connected in parallel. The first stage includes an input capacitor, four switches, and one flying capacitor. The two cells of the second stage each include four switches and one flying capacitor, and an output filter. The cells of the second stage are driven at half the switching frequency of the input stage, and provides a step-down ratio of 4:1. A third stage having four cells may be added to achieve a step-down ratio of 8:1, a fourth stage having eight cells may be added to achieve a step-down ration of 16:1, etc., each additional stage including a doubling of the number of cells connected in parallel, with all cells being substantially identical, and each stage operating at a further reduced fraction of the switching frequency. Embodiments are particularly suitable for applications such as a 48V intermediate bus architecture for servers and datacenters.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: June 22, 2021
    Inventors: Samuel Dylan Webb, Yan-Fei Liu
  • Patent number: 11044793
    Abstract: A lighting circuit and methods of manufacturing and controlling a lighting circuit are described. The lighting circuit includes a first array of semiconductor light sources, a separate second array of semiconductor light sources, and a shared array of semiconductor light sources. A first driver is electrically coupled to provide a first drive current to the first array and the shared array. A second driver is electrically coupled to provide a second drive current to the shared array and the second array.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 22, 2021
    Assignee: Lumileds LLC
    Inventor: Marc Kessels
  • Patent number: 11038355
    Abstract: A code modulator comprises: a first filter circuit connected between a pair of input ports, a second filter circuit connected between a pair of output ports, and a third filter circuit connected in parallel to each of switch circuits. A code demodulator comprises: a fourth filter circuit connected between a pair of input ports, a fifth filter circuit connected between a pair of output ports, and a sixth filter circuit connected in parallel to each of switch circuits.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: June 15, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Motohiko Fujimura, Masahiro Yamaoka, Atsushi Yamamoto, Taiki Nishimoto
  • Patent number: 11031808
    Abstract: A power supply system is connected to a load, and the power supply system includes a power supply apparatus and a backup apparatus. When an input power is normal, the power supply apparatus converts the input power into a first output power, provides the first output power to the power bus, and selectively provides the first output power to charge the backup apparatus, in which the first output power has a first rated upper-limit value. When the input power is normal and a required power of the load is greater than the first rated upper-limit value, the backup apparatus provides a second output power to the power bus so that the sum of the first output power and the second output power meets the required power of the load.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 8, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Shih-Chieh Chang
  • Patent number: 11018509
    Abstract: A current meter measures a current value associated with input power inputted to a code modulator. A code modulation circuit modulates the input power to generate a code-modulated wave by code modulation using a modulation code based on a code sequence, and transmits the code-modulated wave to the code demodulator via a transmission path. A control circuit controls the code modulation circuit. The code modulation circuit has operation modes different from each other depending on a direction of the input power, and a direction of the code-modulated wave to be generated. The control circuit generates waveform information indicating variations of direction of the input power over time, based on the current value measured by the current meter, and determines the operation mode of the code modulation circuit based on the waveform information.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: May 25, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Taiki Nishimoto, Masahiro Yamaoka, Atsushi Yamamoto, Motohiko Fujimura
  • Patent number: 11011931
    Abstract: Cross-charging among a set of wireless charging IoT devices using prioritizing management rules is disclosed. Device battery status data is received from each wireless charging device in the set of wireless charging devices. A device usage pattern is generated based on user profile data for each wireless charging device in the set of wireless charging devices. At least one priority management rule (PMR) is assigned to at least one wireless charging device in the set of wireless charging devices based on the device battery status data and user profile data from each wireless charging device in the set of wireless charging devices. At least one cross-charging instruction is transmitted to at least one wireless charging device in the set of wireless charging devices based on the at least one PMR.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 18, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kai Liu, Su Liu, Manjunath Ravi, Zhichao Li
  • Patent number: 11010503
    Abstract: Method and system for predicting temporal-spatial distribution of load demand on an electric grid due to a plurality of Electric Vehicles (EVs) is described. The method includes creating an EV load demand (EVLD) model for a Region of Interest (ROI) serviced by the electric grid, wherein the EVLD model integrates an EV model and a transport simulator simulating EV traffic conditions for the ROI. Further, the method includes computing the load demand in time and space in terms of State of Charge (SOC) of a battery for each EV among the plurality of EVs in the ROI, based on the EVLD model. Furthermore, the method includes aggregating the computed the load demand, in terms of the SOC, of each EV in time domain and space domain to create a temporal-spatial impact of the load demand by the plurality of EVs on the electric grid for the ROI.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 18, 2021
    Assignee: Tata Consultancy Services Limited
    Inventors: Arvind Ramanujam, Pandeeswari Sankaranarayanan, Arunchandar Vasan, Rajesh Jayaprakash, Venkatesh Sarangan, Anand Sivasubramaniam
  • Patent number: 10977023
    Abstract: As described herein, a gateway device may include one or more expansion ports to add functionality. The added functionality can be of any desired type, such as adding telephone call routing capabilities, or high-definition radio capabilities. The added functionality can include new wireless communication abilities, such as adding Bluetooth capability, and the combination may allow greater networked communication.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 13, 2021
    Assignee: Comcast Cable Communications, LLC
    Inventors: Michael Connelly, Michael Cook, James Poder, Daniel Herscovici, Hari Venkatram Pedaprolu
  • Patent number: 10978921
    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. During digital ping operations while the transmitting device and receiving device negotiate to establish a power level to use during normal operation, low-power wireless power signals may be transmitted to the receiving device from the wireless power transmitting device. Information gathered during the digital ping may be evaluated using a wireless-power-transmission-efficiency-to-digital-ping-rectifier-output-voltage relationship and using a normal-operation-wireless-power-transmission-efficiency-to-digital-ping-wireless-power-transmission-efficiency relationship to predict a wireless power transmission efficiency that would be experienced if the system were to enter normal operation. Based on this efficiency prediction, the system can issue alerts and can decide whether or not to enter normal operation.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: April 13, 2021
    Assignee: Apple Inc.
    Inventors: Ge Wang, Stephen C. Terry, Wynand Malan, Zachary S. Harris
  • Patent number: 10978983
    Abstract: A rotary electric machine control device that performs drive control on an AC rotary electric machine using an inverter that converts power between DC power and AC power through pulse width modulation based on a carrier frequency, the rotary electric machine control device including: an electronic control unit that is configured to vary the carrier frequency such that the carrier frequency becomes higher as a rotational speed of the rotary electric machine becomes higher so that carrier sideband frequencies, which are frequencies of sideband waves that appear on higher and lower sides of a center frequency that is set in accordance with the carrier frequency, are not included in a frequency band prescribed in advance.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 13, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Masayuki Takenaka, Takuro Iwase, Akiya Kume, Shoji Nagata, Yasuyuki Sato
  • Patent number: 10965154
    Abstract: A load control device may be used to control and deliver power to an electrical load. The load control device may comprise a control circuit for controlling the power delivered to the electrical load. The load control device may comprise multiple actuators, where each of the actuators is connected between a terminal of the control circuit and a current regulating device. The number of the actuators may be greater than the number of the terminals. The control circuit may measure signals at the terminals and determine a state configuration for the actuators based on the measured signals. The control circuit may compare the state configuration to a predetermined dataset to detect a ghosting condition.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: March 30, 2021
    Assignee: Lutron Technology Company LLC
    Inventor: Jaykrishna A. Shukla
  • Patent number: 10951123
    Abstract: A power conversion system is provided. The system includes a switch module, a resonant module, a magnetic conversion module, a bobbin and an iron core. The magnetic conversion module includes a primary winding and a PCB winding module. The PCB winding module includes a printed circuit board, a conductive layer disposed on at least one surface of the printed circuit board, and a switch unit disposed on the printed circuit board.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: March 16, 2021
    Assignee: CHICONY POWER TECHNOLOGY CO.. LTD.
    Inventors: Yung-Hung Hsiao, Chia-Hsien Yen, Lieh-Chung Yin, Cheng-Chang Hsiao, Hao-Te Hsu
  • Patent number: 10950988
    Abstract: A direct current (DC)-DC conversion system including at least one DC source, at least one source cable, a DC-DC converter, at least one output cable, and at least one DC load. Each of the at least one source cable includes a source input connector, a source output connector, and a source input cable. The DC-DC converter includes a housing, a DC-DC input connector, and a DC-DC output connector. Each of the at least one output cable includes a load input connector, at least one load output connector, and a load output cable. The DC-DC converter is operable to receive energy from the at least one source via the at least one source cable, and is operable to provide energy to the at least one DC load via the at least one output cable.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: March 16, 2021
    Assignee: LAT ENTERPRISES, INC.
    Inventors: Laura Thiel, Giancarlo Urzi
  • Patent number: 10951122
    Abstract: An electronic converter comprising a switching stage having at least one electronic switch, wherein the switching stage is configured to provide current pulses via a terminal; a first capacitor, wherein the first capacitor provides a first voltage. Specifically, the electronic converter further includes a second capacitor to provide 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 selectively transfer the current to the first capacitor or the second capacitor as a function of the comparison signal. The switching means may include a SCR, where the anode of the SCR is connected to the terminal that provides current pulses and where the cathode of the SCR is connected to the second capacitor.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: March 16, 2021
    Assignee: OSRAM GmbH
    Inventor: Francesco Angelin
  • Patent number: 10940770
    Abstract: A method for operating a charging system for charging electric vehicles, wherein the charging system has a charging station and at least two charging columns which are physically separate from one another and each have at least one charging connection. Each charging column has a light sensor and also a light and/or a display. The method includes receiving signals of the individual light sensors and also collectively evaluating the signals and adjusting the brightness of the light and/or the display of at least one of the charging columns depending on a result of collectively evaluating the received signals. Also described herein is a corresponding charging system.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: March 9, 2021
    Inventors: Steve Zander, Timo Kaul, Raoul Heyne
  • Patent number: 10937485
    Abstract: 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: Grant
    Filed: September 20, 2019
    Date of Patent: March 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: Brian J. Connolly, Kyu-Hyoun Kim, Warren E. Maule
  • Patent number: 10931142
    Abstract: The present disclosure relates to a technology for a sensor network, machine to machine (M2M) communication, machine type communication (MTC), and the Internet of Things (IoT). The present disclosure can be utilized in an intelligent service (such as smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related services) based on the technology. A gateway device according to the present disclosure determines whether additional power consumption information on an electronic device is needed, makes a request for the additional power consumption information to a smart plug when the additional power consumption information is determined to be necessary, determines the maximum number of smart plugs capable of transmitting the additional power consumption information to the gateway device, and controls data transmission of at least a part of smart plugs transmitting the additional power consumption information to the gateway device.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joongki Moon, Yangdon Lee, Kyungjin Jeon
  • Patent number: 10924017
    Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for operating a switched-mode power supply (SMPS). One example method generally includes selecting a first output of a plurality of outputs of the SMPS based on a power demand associated with each of the plurality of outputs if a voltage at the first output is less than a reference voltage associated with the first output, by selecting as the first output one of the plurality of outputs having the highest power demand, and based on an amount of overcharge associated with the first output if the voltage at the first output is greater than the reference voltage, by selecting as the first output one of the plurality of outputs having the lowest amount of overcharge. The method may also include directing current across an inductive element of the SMPS to the first output based on the selection.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: February 16, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Linfei Guo, Chengwu Tao, Joseph Duncan, Amir Parayandeh, Xiaocheng Jing, Justin Philpott, Lin Xue
  • Patent number: 10908665
    Abstract: Various embodiments comprise a protective circuit to connect at least two voltage rails to each other upon detection of the loss of the supply voltage that provides input power to the voltage regulators. The protective circuit may cause the two outputs of the voltage regulators to be connected to each other through a resistor when such a loss occurs. This in turn may prevent possible circuit damage in the load by preventing the higher output voltage from dropping below the lower output voltage if the capacitors on the outputs of the voltage regulators discharge at different rates. Such a reverse-voltage condition might otherwise cause damage in the load circuitry.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 2, 2021
    Assignee: Intel Corporation
    Inventors: Horthense D. Tamdem, Pavan Kumar
  • Patent number: 10895885
    Abstract: A system is provided herein for remotely monitoring machinery, the machinery having a control network for control thereof, one or more switches coupled to the control network for controlling the machinery via the control network. The system includes a controller hardwired coupled to the control network of the machinery. The controller is configured to monitor operation of the machinery. In addition, the system includes an arrangement for receiving signals for controlling the controller from a remote location and an arrangement for transmitting, to a remote location, information collected by the controller resulting from the controller monitoring operation of the machinery. Advantageously, with the subject invention, the system can monitor machinery from remote locations directly. In the event of faults or failures, corrective action may be taken using the subject invention.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: January 19, 2021
    Inventors: Robert Joseph Berry, Jr., Robert Joseph Berry, Sr.
  • Patent number: 10890310
    Abstract: Provided is an LED lamp for prevention of freezing, comprising: a housing opened at a front side thereof; an LED unit disposed inside the housing; a lens mounted at the opened front side of the housing and configured to allow lighting light emitted from the LED unit to transmit therethrough; a heating member disposed at the rear side of the lens and configured to generate heat by being supplied with power; a sensor unit disposed at the inside of the housing and configured to sense the internal temperature of the housing; and a control unit configured to control the power supplied to the heating member depending on the internal temperature of the housing, sensed by the sensor unit.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: January 12, 2021
    Assignee: CRESLITE INC
    Inventor: Dong Sun Kim
  • Patent number: 10882471
    Abstract: Even when a positive/negative surge is applied to a power-supply line, occurrence of malfunction in a semiconductor device is lessened. In an in-vehicle semiconductor device, regulators convert an externally-supplied voltage to generate voltages. A voltage monitoring unit includes a voltage monitoring circuit and a switch, and monitors first to third voltages. An internal circuit has a processor operated by the voltage, and an oscillator operated by the voltage and generating a clock signal to be provided the processor. The voltage monitoring unit stops providing the clock signal to the processor when the voltage level of at least any one of the first to third voltages is below a set value. The voltage monitoring unit provides the clock signal to the processor when the voltage levels of all the first to third voltages exceed the set value.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: January 5, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshimitsu Yanagawa, Masahiro Matsumoto, Hiroshi Nakano, Akira Kotabe
  • Patent number: 10884475
    Abstract: A portable electronic device determines a battery available power for the device's battery and manages device power usage based upon the battery available power. The device includes a battery and a controller. The controller is configured to receive a first voltage value for the battery at a first time, a first current value for the battery, a second voltage value for the battery at a second time, and a second current value for the battery. It is determined that a time difference between the first time and the second time exceeds a predetermined time threshold. An estimated resistance of the battery is determined based at least on a first difference between the first current value and the second current value and a second difference between the first voltage value and the second voltage value. Real-time power usage of the device is controlled based on the estimated resistance of the battery.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: January 5, 2021
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: John Wang, Matthew Wong, Marko Bundalo, Yuting Yeh, Kamran Mohajer, Vidhyananth Ramasamy Venkatasamy, Girish Sidhmalswamy Ghongdemath, Shuoqin Wang, Jason Allan Graetz
  • Patent number: 10855191
    Abstract: A power converter includes a primary winding and multiple output windings to provide multiple independently controlled and regulated outputs with a common return line. The outputs are coupled to independently regulate constant current, constant voltage, or both constant current and constant voltage outputs. A secondary control block is coupled to control a synchronous rectifier switch coupled to the common return line to synchronize switching with a primary side power switch to provide complementary conduction of the primary winding and the multiple output windings. A plurality of controlled power pulse switches is coupled to the multiple output windings. A request of a power pulse from each of the outputs is transferred through the secondary control block to a primary switch control block to turn on the primary side power switch to transfer a power pulse to the multiple output windings and through controlled power pulse switches to the outputs.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: December 1, 2020
    Assignee: Power Integrations, Inc.
    Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
  • Patent number: 10852706
    Abstract: Methods and apparatus are disclosed for extracting maximal frequency response potential in controllable loads. In one example, a method includes assigning a fitness metric to at least one electrical device coupled to a power grid, assigning a frequency threshold based on the fitness metric, and transmitting the assigned frequency threshold to the at least one electrical device. The fitness metric can be based at least in part on an availability component and a quality component associated with the at least one device and the frequency threshold can cause the at least one electrical device to activate autonomously based on a frequency of the power grid.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: December 1, 2020
    Assignee: Battelle Memorial Institute
    Inventors: Jianming Lian, Karanjit Kalsi, Draguna Vrabie, Soumya Kundu
  • Patent number: 10848012
    Abstract: An electromagnetic connector is disclosed that is configured to form a first magnetic circuit portion comprising multiple coils disposed about a first core member. The electromagnetic connector is configured to mate with a second electromagnetic connector that is configured to form a second magnetic circuit portion comprising a coil disposed about a second core member. When the electromagnetic connector is mated with the second electromagnetic connector, the first core member and the second core member are configured to couple the multiple coils of the electromagnetic connector to the coil of the second electromagnetic connector with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion. The magnetic circuit is configured to induce a signal in a first coil of the multiple coils and the coil of the second electromagnetic connector when a second coil of the multiple coils is energized.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 24, 2020
    Assignee: BEDROCK AUTOMATION PLATFORMS INC.
    Inventors: James G. Calvin, Albert Rooyakkers, Michael Koran
  • Patent number: 10840702
    Abstract: Provided in the present invention is a direct current power grid voltage control method, dividing control of a direct current power grid voltage into three processes, namely natural voltage regulation, first voltage regulation and second voltage regulation; the converter stations in the direct current power grid are divided into three types, namely power regulation converter stations, auxiliary voltage regulation converter stations, and voltage regulation converter stations, on the basis of whether the converter station has a voltage regulation capacity, the power regulation converter stations operating in a fixed power control mode, the voltage regulation converter stations operating in a fixed voltage control mode or an auxiliary voltage control mode, and the auxiliary voltage control converter stations operating in the auxiliary voltage control mode; all the converter stations in the direct current power grid participate in natural voltage regulation, the auxiliary voltage regulation converter stations and
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: November 17, 2020
    Assignees: NR ELECTRIC CO., LTD, NR ENGINEERING CO., LTD
    Inventors: Jiudong Ding, Yu Lu, Yunlong Dong, Gang Li, Zhaoqing Hu
  • Patent number: 10833597
    Abstract: A hub device and a power supply method thereof are provided. The hub device includes a power input port, first and second power output ports, a power management circuit and a controller. When first and second electronic devices are respectively connected to the first and second power output ports, the controller determines an input electric power from at least one default supply power of the power adapter based on first operating power information of the first electronic device and second operating power information of the second electronic device, so as to control the power adapter to provide the input electric power to the power input port. The power management circuit receives the input electric power to generate first and second operating power, so as to output the first operating power to the first power output port and output the second operating power to the second power output port.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: November 10, 2020
    Assignee: Wistron Corporation
    Inventors: Sheng-Hung Wang, Wei-Chiao Huang, Pei-Kai Hsu, Yung-Yu Huang
  • Patent number: 10819111
    Abstract: A multi-port power supply apparatus and a power supplying method thereof are provided. The multi-port power supply apparatus includes a power supply circuit, a plurality of connecting ports, a plurality of power converters, and a common control circuit. The power supply circuit is configured to provide a source electric energy to the power converters. Any one of the power converters converts the source electric energy into an output electric energy and outputs the output electric energy to the corresponding connecting port. The common control circuit dynamically adjusts the source electric energy by controlling the power supply circuit according to a plurality of voltage demands and a plurality of power demands of the connecting ports, so as to enhance voltage conversion efficiency of the multi-port power supply apparatus.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: October 27, 2020
    Assignee: VIA LABS, INC.
    Inventors: Tze-Shiang Wang, Sheng-Hsien Yen
  • Patent number: 10811879
    Abstract: A static volt-ampere reactive (VAR) compensator apparatus includes a capacitor electrically coupled between a phase conductor and a neutral conductor. The apparatus further includes a first switch electrically coupled between the phase conductor and an intermediate node. The apparatus also includes an inductor electrically coupled between the intermediate node and the neutral conductor in series with the first switch. The apparatus includes a second switch electrically coupled between the intermediate node and the neutral conductor in parallel with the inductor. The apparatus further includes a controller configured to transmit signals to the first switch and the second switch that cause the apparatus to modulate between a first state, in which the first switch is open and the second switch is closed, and a second state, in which the first switch is closed and the second switch is open.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 20, 2020
    Assignee: Boise State University
    Inventors: Said Ahmed-Zaid, Muhammad Kamran Latif
  • Patent number: 10796830
    Abstract: A power controller, including power stages configured to receive input power and charge an inductor, the power stages including output power stages configured to output a first voltage and a second voltage, and feedback circuits to determine error signals of the first voltage and second voltage, a first loop configured to determine an amount of energy to be stored in the inductor using the error signals, and a second loop configured to determine a discharge of the inductor between the first voltage and the second voltage, wherein the second loop determines a moving average of at least one transition point between powering the first voltage and the second voltage.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 6, 2020
    Assignee: NXP B.V.
    Inventors: Christian Vincent Sorace, Nicolas Patrick Vantalon
  • Patent number: 10797612
    Abstract: A power distribution system includes a first set of power converters arranged with a respective set of power inputs, and having a respective set of power outputs, and at least one controller module communicatively connected with the first set of power converters and configured to controllably adjust the power conversion of the first set of power converters, and method of operating the power distribution system.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: October 6, 2020
    Assignee: GE Aviation Systems LLC
    Inventors: Hao Huang, Zhiqiao Wu