Patents Examined by Rexford N. Barnie
  • Patent number: 10811911
    Abstract: A wireless energy transmission method and a wireless energy receiving device are provided. A method includes determining wireless energy transmission efficiencies between the wireless energy receiving device and a plurality of wireless energy sending devices respectively, and receiving wireless energy transmission from the plurality of wireless energy sending devices according to the wireless energy transmission efficiencies. Energy requested or required by the wireless energy receiving device can be distributed to the plurality of wireless energy sending devices reasonably, thereby efficiently charging the wireless energy receiving device.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: October 20, 2020
    Assignee: BEIJING ZHIGU RUI TUO TECH CO., LTD.
    Inventor: Ran Xu
  • Patent number: 10811882
    Abstract: A method, apparatus, and system to control and test a solar inverter are provided. The method commissions a solar inverter of a solar plant before it is placed into power production. The commissioning process verifies that the inverter to be tested is functioning as intended by connecting a first inverter to the inverter to be commissioned, and using the first inverter to emulate the power grid without being connected to the power grid, and circulate reactive and limited active power between the first inverter and the inverter to be commissioned.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: October 20, 2020
    Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LTD
    Inventors: Siddharth Pant, Philip EdgarCrapse Stone, Bacil Shaqqo, Rajesh Bhupathi, Shrutish Dawande
  • Patent number: 10811992
    Abstract: A power conversion device including an alternating current (AC) source, a plurality of switching units connected in series between positive and negative terminals of the AC source, each including a semiconductor switching element and having a load connected thereto, each switching unit outputting, to the load connected thereto, an input current from the AC source and a direct current (DC) output voltage that is generated through ON/OFF control of the semiconductor switching elements, a capacitor connected in parallel with the AC source and with the switching units, an inductor inserted between the capacitor and the switching units, and between the AC source and the switching units, a current measurement unit that measures a value of a current flowing from the AC source to the capacitor, and a control device that performs the ON/OFF control on the semiconductor switching elements on the basis of the measured current value.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 20, 2020
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Satoru Fujita, Ryuji Yamada
  • Patent number: 10807474
    Abstract: Disclosed is a driving circuit for an electric vehicle having a battery pack and an inverter, and a control method thereof. The driving circuit includes a first contactor connected between a first terminal of the battery pack and a first terminal of a capacitor included in the inverter, a second contactor and a current limiting circuit connected to the first contactor in parallel, and a control unit configured to control operations of the first contactor and the second contactor. The second contactor and the current limiting circuit are connected to each other in series. The current limiting circuit includes at least one resistor, wherein the control unit outputs a first control signal when the first contactor is normally operating and outputs a second control signal when the first contactor is abnormally operating. The first control signal induces the first contactor to turn on, and the second control signal induces the second contactor to turn on.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: October 20, 2020
    Assignee: LG CHEM, LTD.
    Inventor: Jeong-Joo Song
  • Patent number: 10811881
    Abstract: A method for regulating a converter to autonomously stabilize the frequency of a microgrid comprising a generating set, the method comprising: a determination of a power regulation variable from a power variation resulting from the initial power setpoint from which the estimated active power and the active damping value have been subtracted, a calculation of a second power variation at least from the difference between the power regulation variable and the estimated active power, and a determination of a frequency command value for commanding the converter from the second power variation, a reception of a frequency value characteristic of a load variation of said microgrid to which the converter is intended to be connected, and a determination of an active damping value from the received frequency value.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 20, 2020
    Assignees: SOCOMEC, UNIVERSITÀ DEGLI STUDI DI PADOVA
    Inventors: Michele Corradin, Igino Toigo, Paolo Mattavelli
  • Patent number: 10811909
    Abstract: A magnetic field is formed at a predetermined region. A magnetic field formation device configured to generate a variable magnetic field at a predetermined region A includes: at least one power supplying resonator configured to generate the variable magnetic field; and power-supplying coils configured to generate an induced current in the at least one power supplying resonator, all of the power-supplying coils and the at least one power supplying resonator being disposed so that coil surfaces oppose the predetermined region A, and at least one of the power-supplying coils being disposed to have a coil surface direction which intersects with coil surface directions of the other power-supplying coils.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 20, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Nam Tung Vu, Takezo Hatanaka, Taiki Sueyoshi, Masami Inoue, Hisashi Tsuda
  • Patent number: 10811900
    Abstract: A first controller for a first DC/DC converter is configured to generate a first current command value based on a smallest value of an output current when an output voltage of the solar battery is equal to an optimum operating voltage in maximum power point tracking control and an output current for outputting a consumption current between the solar battery and the DC load and a charging current of the power storage apparatus. A second controller for a second DC/DC converter is configured to generate a second current command value such that a voltage of the output terminal is equal to a reference voltage.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: October 20, 2020
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Shoichi Abe
  • Patent number: 10804748
    Abstract: Wireless power transmitting equipment may transmit wireless power signals to wireless power receiving equipment. The wireless power transmitting equipment may have a wireless power transmitter coupled to a wireless power transmitting coil. The wireless power receiving equipment may have a wireless power receiving coil coupled to wireless power receiving circuitry such as a rectifier. Foreign object detection coil arrays may be formed from arrays of metal traces on printed circuit substrates that overlap the wireless power transfer coils. Control circuitry in the transmitting equipment and the receiving equipment may monitor signals from foreign object detection circuitry that is coupled to the coil arrays. The foreign object detection circuitry may produce in-phase and quadrature signals that are indicative of whether a foreign object is overlapping a foreign object detection coil array.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: October 13, 2020
    Assignee: Apple Inc.
    Inventors: Hunter H. Wu, Anlang Lu, Brandon Pierquet, Jouya Jadidian
  • Patent number: 10804735
    Abstract: Techniques for providing an uninterruptible power supply are disclosed. An example system includes three single-phase Uninterruptible Power Supplies (UPSs) and an adapter. The adapter is to receive three-phase AC power, and separate the three-phase AC power into three separate single-phase outputs. Each single-phase output is coupled to an input of one of the three single-phase UPSs. An output of each one of the single-phase UPSs is coupled to one of three single-phase inputs of the adapter, and the adapter is to combine the three single-phase inputs into a single three-phase output.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 13, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Hai Ngoc Nguyen, Daniel Hsieh, Abhishek Banerjee
  • Patent number: 10804721
    Abstract: An emergency power supply control system includes a main control module, a power storage module, a charge module, and a discharge module. The main control module is respectively connected to the power storage module, the charge module, and the discharge module. The charge module, the power storage module, and the discharge module are connected in sequence. The power storage module includes a power storage control unit and a power storage management unit, an input end of the power storage management unit is connected to an output end of the charge module, an output end of the power storage management unit is connected to an input end of the discharge module. The input end of the power storage management unit is connected to an output end of the power storage control unit, an input end of the power storage control unit is connected to the main control module.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: October 13, 2020
    Assignee: SHENZHEN SEGRE ELECTRONIC CO., LTD.
    Inventor: Qingjin Liu
  • Patent number: 10804750
    Abstract: A method of measuring a Q-factor in a wireless power transmitter includes charging a capacitor in a LC tank circuit that includes a transmission coil to a voltage; starting a Q-factor determining by coupling the LC tank circuit to ground to form a free-oscillating circuit; monitoring the voltage across the capacitor as a function of time as the LC tank circuit oscillates; and determining the resonant frequency and the Q-factor from monitoring the voltage.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: October 13, 2020
    Assignee: Integrated Device Technology, Inc.
    Inventors: Rui Liu, Zhitong Guo, Haiwen Jiang
  • Patent number: 10800364
    Abstract: A system includes first and second vehicle power distribution buses electrically isolated from one another, each electrically connected to an electric generator. Each of the first and second buses includes a high voltage portion, electrically connected to a first load with a power consumption exceeding a threshold, and a low voltage portion electrically connected to a second load with a power consumption less than the threshold.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: October 13, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Hafiz Shafeek Khafagy, Prasad Venkiteswaran
  • Patent number: 10804729
    Abstract: A wireless power transmitter which is capable of charging a plurality of wireless power receivers is discussed. The wireless power transmitter includes a plurality of coil cells, a main half-bridge inverter to which a main pulse signal is applied, a plurality of sub half-bridge inverters to which a first sub pulse signal or a second sub pulse signal is applied, at least one current sensor configured to monitor a current, and a communications and control unit configured to control the pulse signals applied to the main half-bridge inverter and sub half-bridge inverters and communicate with the wireless power receivers.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: October 13, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongcheol Park, Hyunbeom Lee, Jaesung Lee, Byungsang Jung, Jinmoo Park, Seonghun Lee, Jihyun Lee, Jeongkyo Seo
  • Patent number: 10804704
    Abstract: A microgrid control system includes a power transmission system configured to supply power to a microgrid, the microgrid configured to receive power from the power transmission system and to supply power to at least one or more distributed generators or into at least one or more loads, a DC converter configured to convert power that is supplied to the microgrid, and a converter control unit configured to measure a first power frequency variation of the microgrid and a second power frequency variation of the power transmission system and to control active power that is transmitted to the microgrid by the DC converter.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: October 13, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: Gilsoo Jang, Jaewan Suh, Donghee Yoon, Yunsung Cho
  • Patent number: 10804747
    Abstract: A turret system includes a base subassembly and a turret subassembly. The base subassembly includes a base housing and a first turret mounting interface coupled to the base housing. The base subassembly also includes a first antenna configured to wirelessly transmit an electrical power signal. The turret subassembly includes a turret housing and a second turret mounting interface coupled to the turret housing. The second turret mounting interface is configured to rotate with respect to the first turret mounting interface, thereby rotating the turret housing with respect to the base housing. The turret subassembly further comprises a second antenna configured to wirelessly receive the electrical power signal from the first antenna.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 13, 2020
    Assignee: Lockheed Martin Corporation
    Inventors: Thomas E. Byrd, Joshua E. Baer, David L. Hunn
  • Patent number: 10804744
    Abstract: The present disclosure provides systems and methods for controlling wireless power transfer systems. A wireless power transfer system includes a transmitter driven by a power source and a transmit controller, wherein the transmitter is configured to control delivery of wireless power, and a receiver inductively coupled to the transmitter, the receiver configured to receive the wireless power from the transmitter and deliver the received wireless power to a load. The receiver includes receiver electronics configured to determine a Thevenin equivalent impedance of the wireless power transfer system, determine a Thevenin equivalent source voltage of the wireless power transfer system, and control, based on the determined Thevenin equivalent impedance and the determined Thevenin equivalent source voltage, an ideal source voltage of the receiver to vary the amount of the wireless power transferred from the transmitter to the receiver.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 13, 2020
    Assignee: TC1 LLC
    Inventor: Ethan Falk Petersen
  • Patent number: 10794551
    Abstract: A light system includes a plurality of light towers including a first light tower and a second light tower. Each light tower include a light source, a rechargeable battery operable to provide electrical power to the light source, and a control system programmed to control the flow of power to and from the rechargeable battery. The light system further includes a power/network cord electrically connecting the first light tower to the second light tower, a power source, and a power recharge cord arranged to electrically connect the first light tower to the power source. The power recharge cord is operable to provide electrical power from the power source to the first light tower and from the first light tower to the second light tower via the power/network cord. Each control system is programmed to selectively activate the power source to initiate a recharge cycle for the respective rechargeable battery.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 6, 2020
    Assignee: CLARK EQUIPMENT COMPANY
    Inventors: Lloyd N. Flesch, John T Gunn
  • Patent number: 10797485
    Abstract: In a conventional power supply system, it was difficult to quickly activate a motor load or the like after performing switching to an isolated operation.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 6, 2020
    Assignee: TABUCHI ELECTRIC CO., LTD.
    Inventors: Yuji Yamauchi, Hiroshi Asano, Masataka Shintani, Hirofumi Konishi
  • Patent number: 10797488
    Abstract: A method for operatively coupling a plurality of generating units in at least one micro-grid to a bulk grid, where the at least one micro-grid is configurable to be operatively coupled to the bulk grid via a point of interconnection breaker is presented. The method includes, using a control unit operatively coupled to the at least one micro-grid and the bulk grid, determining one or more bulk grid side parameters and one or more micro-grid side parameters, comparing one or more of the one or more micro-grid side parameters with corresponding one or more bulk grid side parameters, and synchronizing each of the plurality of generating units in the at least one micro-grid with the bulk grid based on the comparison. Further, the method includes connecting simultaneously, using the point of interconnection breaker, each of the plurality of generating units to the bulk grid based on the synchronization.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: October 6, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Santosh Sambamoorthy Veda, William James Premerlani
  • Patent number: 10797531
    Abstract: Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kang-Ho Byun, Se-Ho Park, Hae-Young Jun, Hee-Won Jung