Capacitor Charging Or Discharging Patents (Class 320/166)
  • Patent number: 10777967
    Abstract: A current driver is disclosed which allows very short pulses at high currents to be generated for high power laser diodes. The parasitic inductance of the laser diode limits the speed at which the laser diode may be turned on and off. A high voltage is used to charge this inductance rapidly and maximize the rise time. The fall time is shortened by allowing a similar high voltage to be generated at turnoff without damage to the laser diode or switching components. A portion of the energy stored in the parasitic inductance may recovered to reduce drain on the power source, and to improve overall efficiency. The anode of the laser may be switched to ground at the end of a pulse.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 15, 2020
    Assignee: Analog Modules, Inc.
    Inventors: Ian D Crawford, Dwight E Wildon
  • Patent number: 10776184
    Abstract: Embodiments are provided for managing operation of an electronic device based on the connection(s) of hardware module(s) to the electronic drive via a support housing. According to certain aspects, the electronic device may detect when a hardware module connects to the support housing. The electronic device may identify a function associated with the hardware module, where the function may be a built-in function of the hardware module itself or of the electronic device. The electronic device may accordingly activate the identified function.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: September 15, 2020
    Assignee: Google LLC
    Inventors: Eric Liu, Yoshimichi Matsuoka, Jason Chua, Kevin D. Brune
  • Patent number: 10763661
    Abstract: A reverse current protection circuit for a switch circuit includes a reverse current control circuit and an enable/disable circuit coupled to the reverse current control circuit. The reverse current control circuit is coupled to an input terminal and an output terminal of the switch circuit, and disconnects the output terminal of the switch circuit from the input terminal of the switch circuit when an output voltage of the switch circuit is higher than a first predetermined voltage. The enable/disable circuit disables the reverse current control circuit for a first predetermined time period when the output voltage of the switch circuit becomes lower than the first predetermined voltage after being higher than the first predetermined voltage, and enables the reverse current control circuit after the first predetermined time period.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 1, 2020
    Assignee: NXP B.V.
    Inventors: Mingliang Wan, Fu Chun Zhan, Yuanwei Yang
  • Patent number: 10756651
    Abstract: Provided is a power generating element and a power generating device capable of using vibration energy not used for power generation in the past. The power generating element includes a displacement member, a fixed member, and an elastic deformation body. An electret material layer is formed on a surface of one of the displacement member and the fixed member. A counter electrode layer opposed to the electret material layer is formed on the other surface. When vibration energy is given to the power generating element, the displacement member is displaced with respect to the fixed member such that an inter-layer distance between the electret material layer and the counter electrode layer fluctuates according to deformation of the elastic deformation body.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: August 25, 2020
    Assignee: TRI-FORCE MANAGEMENT CORPORATION
    Inventors: Kazuhiro Okada, Miho Okada
  • Patent number: 10749447
    Abstract: An electrical apparatus includes an electrical signal generation structure arranged to generate an electrical signal in response to a change of an external pressure subjected thereto. The electrical signal generation structure includes a fabric material. A method for fabricating such electrical apparatus is also provided.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: August 18, 2020
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Minshen Zhu
  • Patent number: 10742117
    Abstract: One example includes a power supply system. The system includes a switch system comprising a switch that is configured to generate a switching voltage at a switching node in response to an input voltage. The system also includes a non-linear capacitance charge-pump coupled to the switching node and being configured to provide an output current in response to the switching voltage. The output current can have an amplitude that varies non-linearly with respect to an amplitude of the switching voltage. The switch system further includes an output stage configured to generate an output voltage on an output node in response to the output current.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 11, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Isaac Cohen
  • Patent number: 10734818
    Abstract: An equalization circuit system having a system configuration simplified through reduction of the total number of switches is provided. An electricity storage cell voltage equalization circuit is operated with a square wave voltage generated at a switching node in an electricity storage module voltage equalization circuit as an input voltage, thereby achieving an electricity storage cell voltage equalization circuit without a switch. Typically, the electricity storage cell voltage equalization circuit may be a resonance voltage-doubling rectifier circuit, and the electricity storage module voltage equalization circuit may be a switched capacitor, a resonance voltage-doubling rectifier circuit, a buck-boost converter or the like.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 4, 2020
    Assignees: JAPAN CAPACITOR INDUSTRIAL CO., LTD., Japan Aerospace Exploration Agency
    Inventors: Masatoshi Uno, Akio Kukita, Kazushige Ito, Tsutomu Sekido
  • Patent number: 10734824
    Abstract: Concepts and technologies are disclosed herein for flexible batteries and methods for forming flexible batteries. A flexible battery can include a borophene sheet, a pyroelectric peptide microtubule, and a borophene cap. A first end of the pyroelectric peptide microtubule can be located adjacent to the borophene sheet and the borophene cap can be located at a second end of the pyroelectric peptide microtubule. The borophene cap can collect a charge created by the pyroelectric peptide microtubule. The flexible battery also can include a collection wire that directs the charge to a borophene capacitor charge system.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: August 4, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Timothy Innes, David Spivey, Jr., Kevin Igoe
  • Patent number: 10715036
    Abstract: In a power converter, a switching network having switches that operate at a common frequency and duty cycle interconnects circuit elements. These circuit elements include capacitors that are in a capacitor network and a magnetic filter. When connected to the capacitors by a switch from the switching network, the magnetic filter imposes a constraint upon inter-capacitor charge transfer between the capacitors to maintain the filter's second terminal at a voltage. The switching network transitions between states. These states include a first state, a second state, and a third state. In both the first state and the third state, the first magnetic-filter terminal couples to the capacitor network. In the second state, which occurs between the first and third state, the switches ground the first magnetic-filter terminal.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 14, 2020
    Assignee: pSemi Corporation
    Inventor: David Giuliano
  • Patent number: 10697432
    Abstract: A method for operating at least one energy storage device of a renewable energy facility connected to a power grid in multiple operational modes includes providing an operational threshold for the renewable energy facility. Further, the method includes comparing an operational parameter of the renewable energy facility with respect to the operational threshold. The method also includes controlling the renewable energy facility based on the comparison. As such, when the operational parameter is below the operational threshold, the controller communicates to the energy storage device(s) to increase its state of charge (SOC) in anticipation of the renewable energy facility transitioning from producing power to consuming power.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 30, 2020
    Assignee: General Electric Company
    Inventors: Vaidhya Nath Venkitanarayanan, Pedro Arsuaga Santos, Megan Ann DeWitt
  • Patent number: 10700521
    Abstract: The present disclosure relates to a hierarchical type power control system. The hierarchical type power control system connected to a cloud server includes: a first microgrid cell including a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load that a power state thereof is managed by the first ESS; a second microgrid cell including a second load and a second ESS managing a power state of the second load; a third microgrid cell including a third load; a middleware server communicating with the first to third microgrid servers; and an integrated control system communicating the middleware server and integrally controlling power supply states of the first to third microgrid cells, wherein the first microgrid cell and the second microgrid cell are connected to each other through a converter to interchange power therebetween.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: June 30, 2020
    Assignee: LSIS CO., LTD.
    Inventors: Jae-Seong Shim, Myung-Hwan Lee, Yong-Hark Shin
  • Patent number: 10686484
    Abstract: A switching network and associated method for operating within a transceiver are disclosed. The switching network has a timing control circuit that offsets the time at which a through switch and a shunt switch transition between on and off states. The output of the timing control circuit is an inverted and delayed version of a control signal applied to the input of the timing control circuit. Controlling the timing of the shunt switch provides a means to safely discharge any accumulated charge within the capacitance Cgs between the gate and source of transistors included within the through switch.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: June 16, 2020
    Assignee: pSemi Corporation
    Inventor: Payman Shanjani
  • Patent number: 10677851
    Abstract: A voltage measurement device includes a relay, a first voltage measurement unit, a second voltage measurement unit, a power supply circuit, and a control circuit. The power supply circuit is indirectly connected to a direct current bus. The first voltage measurement unit measures a first voltage applied to the power supply circuit. A first end of the relay is connected to the direct current bus and a second end of the relay is connected to the power storage device. The control circuit receives operating power from the power supply circuit, controls opening and closing of the relay, and closes a path between the first end and the second end when the first voltage is lower than or equal to a first threshold value. The second voltage measurement unit measures a second voltage applied to the second end at least when the relay is in an open state.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: June 9, 2020
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Hiromichi Yasunori
  • Patent number: 10644521
    Abstract: A recharger includes a power supply circuit, an output circuit, a detection circuit, a micro-controller, and a restart circuit. The detection circuit includes a resistor and an NTC thermistor. The resistor includes a first end coupled to an auxiliary voltage provided by the power supply circuit. The NTC thermistor includes a first end coupled to a second end of the resistor and a second end coupled to a bias voltage. The micro-controller, including a pin coupled between the resistor and the NTC thermistor, turns off when the pin level is lower than a reference voltage. The restart circuit includes a comparator having a positive input end coupled to the pin, a negative input end coupled to a restart voltage, and an output arranged to output an enable signal when the level of the pin is higher than the restart voltage, thereby activating the output circuit for providing an output voltage.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: May 5, 2020
    Assignee: ACER INCORPORATED
    Inventor: Tzu-Tseng Chan
  • Patent number: 10601292
    Abstract: A co-constructed power generation device comprises a shell member, a first power generation group and a second power generation group, wherein the first power generation group is disposed in the shell member and generates shake-induced power, and the second power generation group is disposed in the shell member and generates rotation-induced power.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: March 24, 2020
    Assignee: WISTRON CORP.
    Inventors: Wen Chieh Hsu, Tai-Shen Yang, Yueh-Chou Sung
  • Patent number: 10599232
    Abstract: Disclosed is a wireless charging mouse, a wireless charging mouse device and a charging method thereof. The wireless charging mouse comprises a wireless power reception circuit, a displacement detecting circuit, a wireless transmission circuit, a charging circuit, a control circuit and a power switching circuit. The wireless power reception circuit wirelessly receives an electromagnetic energy. The displacement detecting circuit detects whether the wireless charging mouse is moving. The control circuit outputs a displacement detecting signal and a power switching signal according to a detecting result generated by the displacement detecting circuit through the wireless transmission circuit. The power switching circuit receives the power switching signal and adjusts a ratio of an electric energy for working to the wireless charging mouse and an electric energy for charging to the charging circuit.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 24, 2020
    Assignees: DEXIN ELECTRONIC LTD., DEXIN CORPORATION
    Inventor: Yuan-Jung Chang
  • Patent number: 10569398
    Abstract: An adapter for a power tool including a housing, a tool-side connector, and a battery-side connector in electrical communication with each other. The tool-side connector is configured to couple to a power tool, and the battery-side connector is configured to couple to a battery pack. The adapter also includes a communication interface configured to couple with an external device, and a controller. The controller is configured to determine a state of the power tool, operate in a data transmission mode when the power tool is in the idle state, operate in a pass-through mode when the power tool is in the active state, and switch between the data transmission mode and the pass-through mode based on the state of the power tool.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: February 25, 2020
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Matthew J. Mergener, Burtrom Lee Stampfl, Michael Monteleone, Cole A. Conrad, Stephen Matson, Robert R. Hollis
  • Patent number: 10574083
    Abstract: An electronic charger for electric power distribution installations is provided. The electronic charger includes a DC/DC converter of the SEPIC type including an input stage, an output stage and a coupling capacitor. The input stage is electrically connected with input terminals and includes an input inductor and a switching device. The output stage is electrically connected with output terminals and includes an output inductor, an output capacitor and a blocking device. The coupling capacitor is configured to electrically couple the input stage and the output stage with a capacitive coupling. A first sensor provides a first sensing signal indicative of a charging current. A first controller receives the first sensing signal and a reference signal and provides a driving signal to control the switching device.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: February 25, 2020
    Assignee: ABB Schweiz AG
    Inventors: Andrea Bianco, Andrea Ricci, Gabriele Valentino De Natale, Marco Testa
  • Patent number: 10556516
    Abstract: A battery charging system includes a battery, a charging equipment that charges the battery, a charge switch unit that determines an electrical connection between the battery and the charging equipment, a capacitor electrically connected in parallel between the battery and the charge switch unit, and a controller that determines whether an ignition of a vehicle is turned off or charging of the battery is completed, to determine whether the charge switch unit is fused by comparing a discharge rate of the capacitor and a preset first reference value after the charge switch unit is turned on/off when the ignition is turned off, and to determine whether a high voltage remains at an output terminal of the charging equipment by comparing a voltage of the capacitor and a preset second reference value after the charge switch unit is turned off when the charging is completed.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: February 11, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jong Seo Yoon
  • Patent number: 10554151
    Abstract: A novel motor drive system has been described for use in electrostatic generator/motor systems based on the time variation of capacity of a rotating condenser comprised of segmented rotor and stator elements. It takes advantage of the fact that the motor action of such a system depends only on the rms value of the drive pulses, which therefore can be formed simply by periodically interrupting a high-frequency ac wave train. This new circuitry simplifies the drive system and takes advantage of recent developments of devices used in the art of inversion of dc voltages to high-frequency (tens of kiloHz) ac.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 4, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Richard F. Post, Edward G. Cook
  • Patent number: 10516263
    Abstract: The present invention generally relates to the field of uninterruptable power supplies (UPSs) and more specifically, to UPSs using supercapacitors (also may be referred to as ultracapacitors) and/or other capacitor and/or battery elements. In an embodiment, a UPS of the present invention can individually regulate the charging of its capacitive elements to avoid overcharging and/or achieve a more efficient charge state.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: December 24, 2019
    Assignee: Panduit Corp.
    Inventors: Ronald A. Nordin, Masud Bolouri-Saransar, Edward Clarence Shultz, John Bohdan Melinyshyn
  • Patent number: 10498254
    Abstract: The invention provides a power conversion device, including: a voltage conversion stage, including a primary side for receiving a rectified voltage and a secondary side for generating a rectified voltage according to the rectified voltage, wherein the primary side includes a primary side switch; a switch control circuit having a startup status and a normal operation status, the switch control circuit being configured to operably provide a control signal to a control terminal of the primary side switch; a startup circuit, providing a current to the control terminal when the switch control circuit is in the startup status, to at least partially conduct the primary side switch; and a slow soft-startup circuit, wherein when the switch control circuit is in the startup status and the output voltage does not reach a predetermined voltage in a first predetermined time period, the slow soft-startup circuit reduces a total current quantity supplied to the control terminal in a second predetermined time period which is
    Type: Grant
    Filed: June 24, 2017
    Date of Patent: December 3, 2019
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Jyun-Che Ho, Isaac Y. Chen, Yi-Wei Lee
  • Patent number: 10490865
    Abstract: An abnormality determination apparatus is applied to a battery pack including blocks composed of battery cells connected in series, and a connecting member that connect blocks to one another in series. In the blocks and the connecting member, a first detection circuit detects a voltage of a first series circuit including the connecting member. A closed-circuit forming unit forms a closed circuit so as to allow a current to flow to the connecting member. The closed circuit includes the connecting member, at least one of the battery cells, and a diode connected in parallel to connecting member. When a charge-discharge current is not flowing to the battery pack, a first abnormality determining unit determines whether or not an open abnormality has occurred in the connecting member, based on a detection value from the first detection circuit in a state in which the closed-circuit forming unit is forming the closed circuit.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 26, 2019
    Assignee: DENSO CORPORATION
    Inventor: Shunichi Kubo
  • Patent number: 10491018
    Abstract: A power output management apparatus of a battery and a management method thereof are provided. The management method includes: enabling a power output mode and discharging a battery to a load via a discharge circuit in the power output mode; calculating the output power of the discharge circuit during the discharge; comparing the output power and a target power to generate a comparison result; and setting the output power being adjusted step by step by a unit compensation amount via the discharge circuit according to the comparison result.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: November 26, 2019
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Wei-Lieh Lai, Chang-Yuan Liu, Chieh-Fu Hsiao, Yi-Pin Lee
  • Patent number: 10468705
    Abstract: A fuel cell case that is configured to place a fuel cell therein, the fuel cell case includes: a first member including a bottom surface of the fuel cell case; and a second member fixed to an outer circumferential portion of the first member using a fastener, wherein a gasket seals between the first member and the second member, and the first member includes a rib, wherein the rib is positioned on an inner circumferential side of a portion where the first member comes into contact, with the gasket and is protruded upward from a surface where the first member comes into contact with the gasket.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: November 5, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroaki Nishiumi
  • Patent number: 10457151
    Abstract: A power conversion apparatus and method are provided. The apparatus includes a main battery and a power converter configured to execute a high power conversion mode that generates a high power and a low power conversion mode that generates a low power using an input power from the main battery. Additionally, an auxiliary battery is configured to receive and charge the low power and an inverter is configured to convert the high power to a driving power for driving a motor.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: October 29, 2019
    Assignee: Hyundai Motor Company
    Inventors: Tae-Jong Ha, Gi-Bong Son
  • Patent number: 10459014
    Abstract: According to one embodiment, an electronic device includes a transformer connected to a power supply device, a super capacitor chargeable with an output of the transformer, a voltage converter connected to the transformer, a processor having a power supply terminal supplied with an output of the voltage converter, first and second photo-couplers connected to the power supply device, and a capacitor connected to a primary side of the second photo-coupler through a resistor. The primary side of the second photo-coupler is grounded via a pull-down resistor. The processor includes first and second terminals connected to the first and second photo-couplers and a third terminal supplied with a charging voltage of the super capacitor.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 29, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryuhei Yokota, Toshikazu Mukaiyama
  • Patent number: 10358043
    Abstract: An automatic rechargeable battery control module for a vehicle, such as a golf cart incorporates an automatic battery control system that automatically switches from charge to discharge modes with a single relay, thereby preventing the need to manually reset a relay switch due to an over or under voltage situation. An automatic battery control circuit is coupled with a battery management system and a relay contactor is opened and closed by a signal from the battery management system. The battery management system monitors a state of charge of the battery unit as well as current flow to and from a battery unit. The automatic rechargeable battery control module may have a state of charge output that is connected with a state of charge indicator to inform a driver of an approximate driving range or time remaining.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 23, 2019
    Assignee: Elite Power Solutions, LLC
    Inventors: Yuan Dao, William Jeffrey Schlanger, Jennifer Dao
  • Patent number: 10348126
    Abstract: A battery switching method applicable to an electronic device is provided. The electronic device comprises a first battery and a second battery. The method comprises: (a) switching the electronic device to a sleep mode from a normal mode; (b) switching a power supply of the electronic device to the second battery according to a removing signal triggered by removing the first battery; (c) switching the power supply of the electronic device to the first battery according to an inserting signal triggered by inserting the first battery; (d) updating parameters of the first battery; and (e) switching the electronic device to the normal mode from the sleep mode.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: July 9, 2019
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Wen-Hann Tsai, Pi-Feng Shih, Chin-Kun Lai
  • Patent number: 10330717
    Abstract: A system for use in a wellbore can include a supercapacitor health measurement device including circuitry for determining a capacitance of a supercapacitor that is positionable in the wellbore. The supercapacitor health measurement device can also include circuitry for determining an equivalent series resistance (ESR) value of the supercapacitor. The supercapacitor health measurement device can further include circuitry for transmitting the capacitance and the ESR value. The system can also include a remote device that is positionable aboveground for receiving the capacitance and ESR value.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 25, 2019
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Lucian Popescu, Burjis H. Cooper
  • Patent number: 10326293
    Abstract: An electronic device may include a battery charger and a controller. The battery charger may receive a voltage from an energy source, and may provide an output power. The controller may receive a voltage value of the energy source, may receive a current value from the battery charger or the energy source, may determine a power value based on the received voltage value and the received current value, and may provide at least one control signal to the battery charger to change the output power of the charger.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: June 18, 2019
    Assignee: INTEL CORPORATION
    Inventors: Lilly Huang, Wayne Proefrock, Krishnan Ravichandran, Alexander Uan-Zo-Li
  • Patent number: 10298038
    Abstract: A circuit for use with an external power source and at least one load. The circuit includes a Hydro-Pyroelectrodynamic (“H-PED”) storage/capture device (“SCD”), a plurality of contacts, and a recharging device. The H-PED SCD stores electrical energy and is configured to discharge power to at least one output contact of the plurality of contacts. The plurality of contacts also include an input contact configured to be connected to the external power source. The recharging device is configured to be powered by the external power source when the external power source is connected to the input contact and supplies power thereto. The recharging device is operable to charge the H-PED SCD when powered by the external power source. The recharging device may be an infrared light emitting diode configured to generate incident infrared radiation operable to charge the H-PED SCD.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 21, 2019
    Assignee: Green-on-Green Energy, Inc.
    Inventor: Samuel P. Felton
  • Patent number: 10277051
    Abstract: A battery module includes a crystal lattice type battery, a detection circuit, a control circuit and an excitation circuit. The detection circuit is electrically coupled to the battery. The control circuit is electrically coupled to the detection circuit. The excitation circuit is electrically coupled to the control circuit and the battery. When the battery is charged or discharged, the detection circuit is configured to detect an impedance of the battery. The control circuit is configured to compare the impedance and a threshold. And the control circuit is configured to produce a control signal. The excitation circuit is configured to selectively provide an excitation signal to the battery according to the control signal.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: April 30, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Shih-Hao Liang, Shou-Hung Ling, Tzi-Cker Chiueh
  • Patent number: 10277223
    Abstract: A charge injection compensation circuit compensates for charge injection by a field-effect transistor (FET) switch regardless of a supply voltage. The charge injection compensation circuit includes a main switch that injects charge into an electronic circuit when switched off, and a charge storage device that stores the injected charge until it can be dissipated to a dissipating node. Upon the main switch being controlled to switch off, a pulse generator circuit controls a charge storage switch to switch on to transfer the charge injected from the main switch to the charge storage device and then switch off. A dissipation circuit dissipates the charge from the charge storage device to a dissipating node.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: April 30, 2019
    Assignee: Analog Devices Global
    Inventors: Jofrey G. Santillan, David Aherne
  • Patent number: 10252744
    Abstract: In a system that shares a battery with an external device, the system includes a power storage device connected to the battery via a power supply line. The system includes a switch provided on the power supply line, and a control unit. The control unit controls on-off switching operations of the switch to selectively establish an electrical conduction between the battery and the power storage device or interrupt the electrical conduction therebetween. The battery has a battery voltage thereacross, and the power storage device has a power-storage voltage thereacross. The battery charges the power storage device while the electrical conduction is established so that the power-storage voltage follows the battery voltage. The control unit turns off the switch when the battery voltage is in a predetermined insufficient voltage state to prevent electrical power charged in the power storage device from being discharged to the battery.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: April 9, 2019
    Assignee: DENSO CORPORATION
    Inventor: Toshihiro Fujita
  • Patent number: 10213908
    Abstract: An adapter for a power tool including a housing, a tool-side connector, and a battery-side connector in electrical communication with each other. The tool-side connector is configured to couple to a power tool, and the battery-side connector is configured to couple to a battery pack. The adapter also includes a communication interface configured to couple with an external device, and a controller. The controller is configured to determine a state of the power tool, operate in a data transmission mode when the power tool is in the idle state, operate in a pass-through mode when the power tool is in the active state, and switch between the data transmission mode and the pass-through mode based on the state of the power tool.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: February 26, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Matthew J. Mergener, Burtrom Lee Stampfl, Michael Monteleone, Cole A. Conrad, Stephen Matson, Robert R. Hollis
  • Patent number: 10207587
    Abstract: A pre-charging switch arrangement for charging a capacitor of a direct-current circuit is disclosed. The pre-charging switch arrangement has a pre-charging resistor, a pre-charging switch, and a voltage detection device connected to the pre-charging resistor and detecting a voltage across the pre-charging resistor.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 19, 2019
    Assignee: TE Connectivity Germany GmbH
    Inventor: Jorg Einhorn
  • Patent number: 10193472
    Abstract: A single friction surface microgenerator and a method of manufacturing the same are described. The microgenerator comprises an insulating substrate with a surface-friction-structured layer on its upper surface and a first induction electrode and a second induction electrode on its lower surface. The first induction electrode is located to correspond to the surface-friction-structured layer that is used as a friction surface while the second induction electrode is located periphery of the first induction electrode and insulatedly spaced from the first induction electrode. The single friction surface microgenerator according to the present disclosure has a wide usage and the method of manufacturing the same may be performed through a simply and high-effective production process, processed at low cost, and may achieve high yield.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 29, 2019
    Assignee: PEKING UNIVERSITY
    Inventors: Haixia Zhang, Bo Meng, Wei Tang
  • Patent number: 10193441
    Abstract: An apparatus for power transformation includes a power converter having a charge pump, a first regulator that regulates the power provided by the power converter, and a magnetic filter connected to a terminal of the charge pump. The particular terminal to which the magnetic filter is connected is selected to facilitate adiabatic inter-capacitor charge transport within the charge pump.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: January 29, 2019
    Assignee: pSemi Corporation
    Inventor: David Giuliano
  • Patent number: 10175301
    Abstract: A system and method manages power in a wireless micro-sensor having a self-contained energy source. The system and method identify the rated capacity of the self-contained energy course by processing an identification value of the self-contained energy source and measuring the temperature of the self-contained energy source over time. The system and method determine temperature trends, measure the depth of discharge of the self-contained energy source, and control the asynchronous transmission of the micro-sensor. The transmission occurs in response to the measured temperatures, the determined temperature trend, and the depth of discharge of the self-contained energy source.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 8, 2019
    Assignee: BlackBerry Limited
    Inventors: Jonathan Quinn Brubacher, Mahendra Fuleshwar Prasad
  • Patent number: 10171016
    Abstract: A motor driving circuit includes a first output switch, a second output switch, a first adjusting module, and a second adjusting module. A rising slew rate of the first output current along the first direction is adjusted according to the first adjusting parameter of the first adjusting module. A falling slew rate of the first output current along the first direction is adjusted according to the second adjusting parameter of the second adjusting module.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: January 1, 2019
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Kun-Min Chen, I-Lin Chiu
  • Patent number: 10116206
    Abstract: The embodiment of the present invention discloses a loop compensation circuit and a switching power supply circuit. The loop compensation circuit can comprise: a voltage detection circuit, a control chip and a RC circuit, and the voltage detection circuit is coupled to a voltage generation circuit, and employed to detect a variation of an output voltage of the voltage generation circuit; the control chip is respectively coupled to the voltage detection circuit and the RC circuit, and employed to detect a response speed of the loop compensation circuit and to adjust a parameter of the RC circuit according to the response speed of the loop compensation circuit and the variation of the output voltage of the voltage generation circuit for adjusting the response speed of the loop compensation circuit.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: October 30, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Xianming Zhang, Dan Cao
  • Patent number: 10110142
    Abstract: Circuits comprising at least one energy storage device, a resistor and switch arranged in series with the resistor are described. The energy storage device is arranged in parallel with the series connection of the switch and the resistor, and the switch is arranged to selectively switch the resistor into a parallel connection to the energy storage device. In some examples, the switch comprises a series connection of semiconductor switching elements. In some examples, the circuit may comprise a sub-module for use in a multilevel modular converter.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 23, 2018
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventor: John Lewis Outram
  • Patent number: 10093196
    Abstract: An electric storage device includes a first electric capacitor, a second electric capacitor, a converter, and a processor. The converter converts electric power transmitted between an external power system external to the electric storage device and at least one of the first electric capacitor and second electric capacitor. The processor is configured to control the converter to operate in at least one of a first mode and a second mode, the first electric capacitor continuously discharging electric power to the external power system in the first mode, the second electric capacitor discharging electric power to the external power system and being charged by the external power system, intermittently, to stabilize frequencies in the external power system in the second mode.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 9, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Ryota Unno, Daijiro Takizawa
  • Patent number: 10086706
    Abstract: A vehicle includes: at least one rotary electric machine; an inverter that drives the rotary electric machine; a capacitor connected between a paired electric power lines that is connected to the inverter; and a control unit. When a vehicle collision is detected, the control unit executes first control for discharging electric charges stored in the capacitor by performing a switching operation of the inverter so as to prevent a flow of a q-axis current but cause a flow of a d-axis current to the rotary electric machine. The control unit stops the first control in a specified case and executes second control for performing the switching operation of the inverter so as to reduce the current flowing through the rotary electric machine to be lower than that during execution of the first control. The control unit executes third control for shutting down the inverter after execution of the second control.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: October 2, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Atsushi Nomura
  • Patent number: 10090758
    Abstract: Embodiments herein provide electronic devices that include a charge pump coupled to a split reservoir capacitor which includes at least two discrete capacitors. Further, the discrete capacitors are coupled together by a switch (e.g., a transistor) which is controlled by an output regulator. In one embodiment, the output regulator monitors an output voltage of the charge pump and the split reservoir capacitor to determine when the output differs from a predetermined target voltage. When the switch isolates the two capacitors, the charge pump can continue to add charge to a first one of the discrete capacitors. Thus, when the output regulator detects a dip in the output voltage and activates the switch to reconnect the two discrete capacitors, the first discrete capacitor has extra charge which can decrease the time needed to bring the output voltage back to the target voltage.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: October 2, 2018
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Zheming Li, Chunbo Liu, Steve Chikin Lo
  • Patent number: 10069323
    Abstract: The disclosure describes a charge device capable of charging electricity storage cells while eliminating a voltage variation among the electricity storage cells without a need for at least a circuit section playing a role in voltage equalization among the electricity storage cells to be designed to have a large current capacity, and describes a charge-discharge device constructed by additionally equipping a discharging function with the charge device. Provided are a charge device and a charge-discharge device each of which comprises a convertor, an input circuit, and a multi-stage voltage doubler rectifier circuit. An element in the convertor configured to be applied with a rectangular waveform voltage is connected to the multi-stage voltage doubler rectifier circuit via the input circuit to thereby realize a voltage equalization function, and an output section of the convertor is connected to the multi-stage voltage doubler rectifier circuit to thereby realize a charging-discharging function.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: September 4, 2018
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Masatoshi Uno, Akio Kukita
  • Patent number: 10056823
    Abstract: A protection circuit applied to an alternating current (AC) power source includes a sample-and-hold unit, a detection unit, and a discharge signal generation unit. The sample-and-hold unit samples a peak value of a direct current (DC) voltage during each period of a corresponding AC voltage, wherein the AC power source provides the AC voltage. The detection unit generates a detection signal when the DC voltage crosses a reference voltage corresponding to the peak value. The discharge signal generation unit generates a count signal when the discharge signal generation unit does not receive the detection signal within a predetermined time of a period of the AC voltage, accumulates the count signal, and generates a discharge signal to a discharge unit when a number of accumulated count signals is greater than a predetermined value, wherein the discharge unit discharges an X capacitor according to the discharge signal.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 21, 2018
    Assignee: Leadtrend Technology Corp.
    Inventors: Ming-Chang Tsou, Meng-Jen Tsai, Yu-Kun Lin
  • Patent number: 10038381
    Abstract: An illustrative converter embodiment employs an oscillator comprising a capacitor and a comparator. The capacitor is alternately coupled to a charging current source and a discharging current source, the charging current source operating to charge the capacitor at a first rate and the discharging source operating to discharge the capacitor at a second rate. The comparator asserts an output signal when the capacitor charges to a first threshold voltage and deasserts the output signal when the capacitor discharges to a second threshold voltage. The first rate may be proportional to the input voltage and the second rate may be fixed. The output signal may be applied to the gate of a transistor to alternately apply the input voltage across an inductor and to apply current from the inductor to a capacitance. The duty cycle of the output signal is inversely proportional to the input voltage, or at least approximately so.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 31, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Dieter Joos
  • Patent number: 9985554
    Abstract: A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed to the first electrode. The first dielectric layer includes a first material that has a first rating on a triboelectric series. The second member includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second member includes a second electrode. The second member is disposed adjacent to the first dielectric layer so that the first dielectric layer is disposed between the first electrode and the second electrode. The sliding mechanism is configured to cause relative lateral movement between the first member and the second member, thereby generating an electric potential imbalance between the first electrode and the second electrode.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 29, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Zhong Lin Wang, Guang Zhu, Sihong Wang, Long Lin