Storage Battery Or Accumulator-type Source Patents (Class 307/48)
  • Patent number: 10958074
    Abstract: This patent describes embodiments of systems, apparatus and methods to provide improved control and coordination of a multiplicity of electric distribution grid-connected, energy storage units deployed over a geographically-dispersed area.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: March 23, 2021
    Assignee: S&C Electric Company
    Inventors: Donald S. Berkowitz, David Porter, Terrence Bellei, James W. Sember, Stephen Williams
  • Patent number: 10943753
    Abstract: According to one or more embodiments, when a predetermined time has passed after generation of an arc at least either between a movable contact and a fixed contact or between a movable contact and a fixed contact, an arc generated between the movable contact and the fixed contact is extended by a magnetic field generation unit to be longer than an arc generated between the movable contact and the fixed contact.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 9, 2021
    Assignee: OMRON Corporation
    Inventors: Syuichi Itoda, Masayuki Noda, Koji Takami, Takeshi Nishida, Yasuo Hayashida, Keisuke Yano, Ayaka Miyake
  • Patent number: 10938238
    Abstract: An electronic apparatus includes: a power reception section configured to receive power transmitted with use of a magnetic field or an electric field; a secondary battery; a charging section configured to perform charging to the secondary battery, based on received power received by the power reception section; a load configured to perform predetermined operation, based on supplied power; and a control section configured to forcibly set a power path on a preceding side of the load to a predetermined state when the load is activated in the charging to the secondary battery.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: March 2, 2021
    Assignee: SONY CORPORATION
    Inventors: Koichi Akiyoshi, Yoichi Uramoto
  • Patent number: 10868425
    Abstract: A method for detecting a voltage disturbance in a utility having a micro-grid. The method transforms current and voltage measurements into first and second voltage values and first and second current values in a stationary reference frame, and transforms the first and second voltage values and the first and second current values to third and fourth voltage values and third and fourth current values in a rotating reference frame, where the third voltage value defines an average magnitude of the three-phase power signals. The method multiplies the third current value by the third voltage value to obtain an instantaneous power value and multiplies the fourth current value by the third voltage value to obtain an instantaneous volt-ampere reactive (VAR) value. The method opens the switch if the VAR value has a magnitude above a predetermined value and a direction indicating the fault is outside of the micro-grid in the network.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 15, 2020
    Assignee: S&C Electric Company
    Inventors: David Glenn Porter, Stephen E. Williams
  • Patent number: 10813513
    Abstract: A method for operating a household appliance with an accumulator, wherein a charging start time of a charging operation for charging the accumulator is controlled in dependence on predefined conditions. In order to ensure a required charge capacity of the accumulator without a charge maintaining mode, it is proposed that the charging start time is controlled in dependence on a charging period and a predefined time of use of the household appliance.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: October 27, 2020
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventors: David Erkek, Georg Hackert, Gerhard Isenberg, Roman Ortmann, Andreas Schmidt
  • Patent number: 10806057
    Abstract: Various examples of the present disclosure provide a multi-node fan control switch and systems and methods for controlling one or more cooling fans of a node using a fan control switch and a specific controller (e.g., BMC or a specific processor) of the node. The node also includes a watch dog circuit. The watch dog circuit can monitor health of the specific controller and, in response to determining that the specific controller has failed, enable the fan control switch to an external mode to allow a controller of a neighboring node in the rack system to control the one or more cooling fans of the node.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 13, 2020
    Assignee: QUANTA COMPUTER INC.
    Inventors: Shuen-Hung Wang, Ting-Chen Ko
  • Patent number: 10784812
    Abstract: Distributed energy storage within the distribution network of an electric power network at least partially supplied by time varying and unpredictable generation sources provides smoothing of energy flow within the distribution network. The distributed energy storage may include a plurality of distributed energy storage units operating under the control of a single controller or regional controllers. The distributed energy storage units may operate as groups of units or as separate units.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: September 22, 2020
    Assignee: S&C Electric Company
    Inventors: Donald Berkowitz, Thomas Walker
  • Patent number: 10756622
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: August 25, 2020
    Assignee: Apple Inc
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Patent number: 10734846
    Abstract: A radio-power distribution controller (300) for controlling far-field radio-power delivery from an external radio-power-supply-device (302) to at least one external radio-power receiving device (300) that has a power-converter for converting a received radio-energy amount into an electrical operation power amount for operating the radio-power receiving device is provided and comprises a radio-power monitoring unit (306), which is configured to determine a duration of a received power-delivering radio signal, to determine, an estimate of a received radio-energy amount, which has been received by the radio-power receiving device (300). Upon determining that the estimate of the received radio-energy amount is below a threshold energy amount, it provides a radio-power-shortage signal.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 4, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventor: Matthias Wendt
  • Patent number: 10608525
    Abstract: A circuit for use in a power converter includes a control circuit capable of detecting whether an AC voltage source is coupled to an input of the power converter, and whether the AC voltage source is uncoupled from the input within a first period of time. A control circuit is coupled to drive a switch in a first operating mode when the control circuit detects that the AC voltage source is coupled to the input, and drive the switch in a second operating mode when the control circuit detects that the AC voltage source is uncoupled from the input. The control circuit is capable of discharging a capacitance coupled between input terminals of the power converter to a SELV level through a discharge path and the switch within a second period of time. An RC time constant of the discharge path is less than or equal to one second.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: March 31, 2020
    Assignee: Power Integrations, Inc.
    Inventors: Balu Balakrishnan, David Kung, Raymond Kenneth Orr, David Michael Hugh Matthews
  • Patent number: 10580591
    Abstract: A metal oxide anchored graphene and carbon nanotube hybrid foam can be formed via a two-step process. The method can include forming at least one graphene layer and a plurality of carbon nanotubes onto a surface of a porous metal substrate by chemical vapor deposition to form a coated porous metal substrate, and depositing a plurality of metal oxide nanostructures onto a surface of the coated porous metal substrate to form the metal oxide anchored graphene and carbon nanotube hybrid foam.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: March 3, 2020
    Assignee: THE REGENTS OF CALIFORNIA, RIVERSIDE
    Inventors: Wei Wang, Shirui Guo, Cengiz S Ozkan, Mihrimah Ozkan
  • Patent number: 10581268
    Abstract: A connecting device is provided, including a control apparatus, an energy storage apparatus, an input connection, and an output connection, the input connection being connected to the energy storage apparatus by means of a charging apparatus, the charging apparatus being configured for controlled charging of the energy storage apparatus, the control apparatus being configured, after reaching a preset charge state of the energy storage apparatus, to connect the energy storage apparatus to the input connection; and the control apparatus also being configured, during and/or following connection of the energy storage apparatus to the input connection, to connect the input connection to the output connection.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: March 3, 2020
    Assignee: VEGA GRIESHABER KG
    Inventors: Volker Allgaier, Holger Staiger, Tobias Mueller
  • Patent number: 10573176
    Abstract: Modular solar systems comprise one or more module units that are connectable into a system/assembly for convenient installation on a roof or other surface that receives solar insolation. The modules are adapted for electrical, and preferably also mechanical, connection into a module assembly, with the number of modules and types of modules selected to handle the required loads. Each module is adapted and designed to handle the entire power of the assembly and to provide or receive control signals for cooperative performance between all the modules and for monitoring and communication regarding the assembly performance and condition.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: February 25, 2020
    Inventor: Seth Myer
  • Patent number: 10496145
    Abstract: Systems, apparatuses, and methods may include a first power source to output power at a first normal power level and a first peak power level and a second power source cooperating with the first power source to output power at a second normal power level and a second peak power level. A system peak power control unit may monitor workload power requirements and cause the first power source to output the first peak power level at a first time period and cause the second power source to output the second peak power level at a second time period, different from the first time period. The time periods may be contiguous or discontiguous.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 3, 2019
    Assignee: Intel Corporation
    Inventors: Xiaoguo Liang, Jun Zhang, Xiang Zhou, Hong W. Wong, Alexander B. Uan-Zo-Li
  • Patent number: 10461572
    Abstract: Described is a technology by which magnetic flux is used to provide backup power. A transformer has a line power source controllably coupled to a first input winding, and secondary power source controllably coupled to a second input winding. A controller monitors the line power and switches to the secondary power source if the line power voltage drops too low, or uses the secondary power source to augment the line power source if the line power current gets too high. Also described is incrementally transitioning from the secondary power source back to the line power source.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: October 29, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Shaun L. Harris, Eric C. Peterson
  • Patent number: 10427547
    Abstract: During charging, a quick charging device forms a battery module series circuit by connecting a third contact of a first switch to a second contact of the first switch, and connecting a fifth contact of a second switch to a twelfth contact of the second switch, so as to enable a charger to be connected to the battery module series circuit. During discharging, the quick charging device forms a battery module parallel circuit by connecting the third contact of the first switch to a first contact of the first switch, and connecting the fifth contact of the second switch to a fourth contact of the second switch, so as to enable a load unit to be connected to the battery module parallel circuit.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: October 1, 2019
    Assignee: YAZAKI CORPORATION
    Inventor: Takahiro Syouda
  • Patent number: 10404069
    Abstract: A driving circuit for driving an appliance has a two-line power input, a first output for connection to the appliance, a second, two-line, output, an internal energy source and a switching arrangement. The switching arrangement is configurable into at least a first mode, in which the two-line power input is connected to the second, two-line, output, and the internal energy source is isolated from direct connection to the two-line power input, and a second mode in which the internal energy source is in series between a first line of the two-line power input and a corresponding first line of the second, two-line, output. The first mode is used for normal operation of an appliance and the second mode is used for grid feeding.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: September 3, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Goutam Maji, Venkata Sriiram Pullela, Mahadev Cholachagudda, Girish Ramdas Wabale, Vasu Poojary
  • Patent number: 10393822
    Abstract: A computer-implemented method for charging partial-use batteries may include (1) determining a discharge duration for a partial-use battery, (2) estimating an age of the partial-use battery, (3) calculating, based on the age, a partial charge voltage for the partial-use battery that will enable a discharge cycle of the partial-use battery to last for the discharge duration, and (4) floating the voltage of the partial-use battery at the partial charge voltage to prolong the partial-use battery's life. The partial-use battery may be a backup battery of a power supply that will experience a transition from a first power source to a second power source, the transition may be expected to last for a transitional duration, the backup battery may supply power to the power supply during the transition, and the discharge duration may be greater than or equal to the transitional duration. Various other methods, systems, and apparatus are also disclosed.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 27, 2019
    Assignee: Facebook Technologies, LLC
    Inventor: Soheil Ebrahimzadeh
  • Patent number: 10348100
    Abstract: A battery balance circuit configured for a battery apparatus having two batteries coupled in series, can include: first and second capacitors respectively coupled to two terminals of the two batteries; first and second switching circuits respectively coupled to the two terminals of the two batteries, where the first and second switching circuits are configured to control charging or discharging of each of the two batteries; a third capacitor coupled between the first and second switching circuits, where the third capacitor is configured to store or release energy in order to balance battery levels between the two batteries; and parasitic inductors, where the third capacitor and the parasitic inductors are configured to resonate, and the first and second switching circuits are configured to operate at a resonance frequency.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: July 9, 2019
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventor: Hejinsheng Cao
  • Patent number: 10331153
    Abstract: A method for controlling an uninterruptible power supply (UPS) having a battery includes powering a load coupled to the UPS using utility power, determining whether an energy cost associated with the utility power exceeds a threshold cost, determining whether a charge level of the battery exceeds a threshold charge level, and powering the load from the battery in response to determining that the energy cost exceeds the threshold cost and that the charge level of the battery exceeds the threshold charge level.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 25, 2019
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Raymond M. Fallon
  • Patent number: 10277111
    Abstract: According to an example, a step down converter includes switching circuit configured to control a switching output in order to generate an output voltage on a converter output within a specified range of a target voltage. The step down converter includes an inductor includes a first terminal and a second terminal, the first terminal coupled to the switching output, and a protection device coupled in series between the second terminal of the inductor and the converter output and including a control terminal. The protection device limits the output voltage supplied at the converter output based on a control voltage at the control terminal.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 30, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Cristina Chiereghin, Cristian Garbossa, Stefano Orlandi
  • Patent number: 10261398
    Abstract: The electronic device of the present disclosure has a mounting section, a voltage determiner, and an attach-detach detector. The mounting section accepts a removable, externally-connected device and connects to a data line into which a unit signal having a data period for transmitting a data signal and a detection period for transmitting a detection signal is fed from the externally-connected device. The voltage determiner determines an electric potential of the data line so as to have a first logical value when the externally-connected device is detached from the mounting section. The attach-detach detector detects whether the externally-connected device is mounted on, or detached from the mounting section by detecting the detection signal of the first logical value determined by the voltage determiner or a second logical value.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: April 16, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Hiroki Kasugai
  • Patent number: 10224725
    Abstract: The present disclosure provides a power adapter, an electronic device and a charging apparatus for an electronic device. In the process of charging a battery in a conventional charge mode after the power adapter is powered on, the power adapter carries out quick charge inquiry communication with the electronic device when an output current value of the power adapter is within a conventional current range for a preset time interval; after the electronic device sends a quick charge command to the power adapter, the power adapter adjusts the output voltage according to the battery voltage information fed back by the electronic device; and when the output voltage meets a voltage requirement for quick charge preset by the electronic device, the power adapter adjusts the output current and the output voltage for charging the battery in a quick charge mode.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: March 5, 2019
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Kewei Wu, Jun Zhang, Fuchun Liao, Yuanxiang Hu
  • Patent number: 10218217
    Abstract: According to one aspect, embodiments of the invention provide a UPS comprising an input to receive input AC power, a bus configured to receive backup DC power, a first output configured to provide an output AC voltage derived from at least one of the input AC power and the backup DC power, a second output configured to provide an output DC voltage derived from at least one of the input AC power and the backup DC power, a first inverter coupled between the bus and a first transformer, the first transformer coupled to the input, a second inverter coupled between the bus and a second transformer, the second transformer coupled to the first output, and a controller configured to operate the second inverter to maintain the output AC voltage above a first threshold value and to operate the first inverter to maintain the output DC voltage above a second threshold.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 26, 2019
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Morten Stoevring
  • Patent number: 10177586
    Abstract: An electric energy storage apparatus according to an embodiment may include a grid configured to supply first electric energy; a generator configured to supply second electric energy; and an electric energy storage apparatus configured to receive and store at least one of the first electric energy and the second electric energy, and supply the stored electric energy or the received electric energy to an electric load, wherein the electric energy storage apparatus senses a magnitude of electric energy discharged to the grid in an operation mode of supplying the stored electric energy to the electric load, and changes the operation mode when the sensed magnitude of electric energy exceeds a preset first threshold value.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: January 8, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Unghoe Kim
  • Patent number: 10143064
    Abstract: The invention relates to a modular LED lighting unit, comprising a first module (1) to which an AC supply voltage (9) can be supplied and which comprises: a second sub-module (B), at the output of which a DC supply voltage (5) is provided which is galvanically isolated from the AC supply voltage (9), and a control unit (G), further comprising a second module (2) which comprises a further sub-module (C) supplied with the DC supply voltage (5) of the first module (1), in particular a pulsed constant current source, which is controlled by a control unit (E) of the second module (2), an LED module (F) which has at least one LED range (8) and is supplied by the further sub-module (C), inn particular a constant current source, and an emergency light operating circuit which is connected to a rechargeable energy store (ES); and takes over powering the modular LED lighting unit in the event of failure of the AC supply voltage (9).
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: November 27, 2018
    Assignees: Tridonic AG, Tridonic UK Ltd.
    Inventors: Michael Zimmermann, Ueli Keller, Ian Wilson
  • Patent number: 10133291
    Abstract: An image forming apparatus includes a power supply controller that selects either commercial power or a secondary battery as a power supply and a main controller that controls the power supply controller. The main controller includes a power supply availability determination unit that determines whether or not both the commercial power and the secondary battery are available and a power supply selection unit that instructs the power supply controller to select the secondary battery as the power supply during a predetermined secondary battery usage period and instructs the power supply controller to select the commercial power as the power supply at times other than the secondary battery usage period in case both the commercial power and the secondary battery are available.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: November 20, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventor: Kenichi Ohhashi
  • Patent number: 10073514
    Abstract: A server arrangement wherein 480 volt alternating current voltage is converted to a direct current voltage in a single step. The server arrangement includes a plurality of cabinets configured with a plurality of rack units, wherein each rack unit is configured to accept a component. The server arrangement further includes a plurality of components located within the rack units. A plurality of power buses are located above the plurality of cabinets and are electrically coupled to cabinets within rows of cabinets. The server arrangement also includes a plurality of rectifier units. Each rectifier unit is configured to convert 480 volt alternating current voltage to a direct current voltage to supply to one or more components.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: September 11, 2018
    Assignee: T-Mobile USA, Inc.
    Inventor: Donley Bryan Doyle
  • Patent number: 10003185
    Abstract: An electrical device includes a first terminal structured to electrically connect to a power source; a second terminal structured to electrically connect to a load; a voltage sensor electrically connected to a point between the first and second terminals and being structured to sense a voltage at the point between the first and second terminals; a switch electrically connected between the first terminal and the second terminal; and a control unit structured to detect a power quality event in the power flowing between the first and second terminals based on the sensed voltage and to control a state of the switch based on the detected power quality event.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: June 19, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Charles John Luebke, Birger Pahl, Steven Christopher Schmalz
  • Patent number: 9977091
    Abstract: In one embodiment, a fuel gauge system is described that comprises two or more battery chargers on different integrated circuits (ICs) coupled in parallel to a battery for charging the battery. Each battery charger IC generates a current signal indicative of current generated by said each battery charger IC into the same battery. A fuel gauge is responsible for accurately reporting the battery state of charge, based on a combination of voltage, current, and temperature information.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 22, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Shadi Hawawini, Christian Sporck, Paolo Baruzzi
  • Patent number: 9978275
    Abstract: Modular solar systems comprise one or more module units that are connectable into a system/assembly for convenient installation on a roof or other surface that receives solar insolation. The modules are adapted for electrical, and preferably also mechanical, connection into a module assembly, with the number of modules and types of modules selected to handle the required loads. Each module is adapted and designed to handle the entire power of the assembly and to provide or receive control signals for cooperative performance between all the modules and for monitoring and communication regarding the assembly performance and condition.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 22, 2018
    Inventor: Seth Jamison Myer
  • Patent number: 9935478
    Abstract: A power delivery rate from a renewable power source to a load is managed by determining, by processing circuitry, a change in a power generation rate, determining, by the processing circuitry, whether the change in the power generation rate exceeds a limit, and then, adjusting, by control circuitry, a power transfer rate to or from a power storage device, such that the adjusting is sufficient to prevent the power delivery rate from exceeding the limit.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: April 3, 2018
    Assignee: YOUNICOS, INC.
    Inventors: Carlos James Coe, Aeron Neils Hurst, Mark Isaac Hardin, Matthew Clayton Such, Richard Thomas Jennings
  • Patent number: 9912231
    Abstract: A digital AC/DC power converter comprises an active PFC module, a single switch module having a single switch, a power output module having a transformer, and a digital control module having a microcontroller. The single switch is electrically connected to the active PFC module, and a primary winding of the transformer is electrically connected to the active PFC module. Moreover, the microcontroller provides a PWM signal to control the switching state of the single switch, so that the active PFC module transforms AC frequency from no more than 300 Hz into at least 30,000 Hz and outputs a rectified AC output voltage waveform to improve power factor.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: March 6, 2018
    Assignee: Digital Power Company Limited
    Inventors: Calvin Shie-Ning Wang, Zhen-Qiu Huang
  • Patent number: 9859706
    Abstract: A united power module having an external input and a first input is provided. The united power module includes a load block, a protection circuitry and a detection block. The detection block includes an analog circuitry. The load block and an end of the protection circuitry are electrically coupled to the external input. The load block, the first input, and another end of the protection circuitry are electrically coupled to the detection block. The load block is supplied by an external power received from the external input. The protection circuitry receives the external power and outputs an auxiliary power. The analog circuitry receives a first power from the first input under a normal power supply state, or receives the auxiliary power under an auxiliary power supply state.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: January 2, 2018
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Ching-Yao Su, Liang-Wei Huang, Hsuan-Ting Ho, Sheng-Fu Chuang
  • Patent number: 9846469
    Abstract: A fault tolerant power supply system includes at least one load switch circuit configured to connect, using a main switch, an input voltage to an output node of the load switch circuit when the load switch circuit is turned on and at least one power channel coupled to the load switch circuit to receive the input voltage. The power channel is configured as a buck converter and includes at least a high-side power switch and a low-side power switch. The fault tolerant power supply system is configured to measure a current flowing through the main switch of the load switch circuit, to determine that the current flowing through the main switch of the load switch circuit has exceeded a current limit threshold, and to disable the main switch of the load switch circuit and the low-side power switch of the power channel in response to the determination that the current flowing in the main switch has exceeded the current limit threshold.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: December 19, 2017
    Assignee: Alpha and Omega Semiconductor Incorporated
    Inventors: Mark Tomas, Zhiye Zhang, Allen Chang, Kuang Ming Chang, Gilbert Lee, Son Tran
  • Patent number: 9843198
    Abstract: Aspects of the present disclosure are directed to methods, apparatuses and systems involving voltage control using rectifying circuitry. According to an example embodiment, an apparatus includes an antenna, a capacitor, and voltage control circuitry. The voltage control circuitry includes a first rectifying circuit to rectify a wireless signal and provide the rectified signal to an output load, a second rectifying circuit to rectify the wireless signal and provide the rectified signal to the capacitor, and a control logic circuit to regulate an output voltage provided to the output load relative to a threshold value. For each rectifying cycle, the control logic circuit determines whether the output voltage is above the threshold value, enables, in response to determining that the output voltage is below the threshold value, the first rectifying circuit, and enables, in response to determining that the output voltage is above the threshold value, the second rectifying circuit.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: December 12, 2017
    Assignee: NXP B.V.
    Inventor: Michael Joehren
  • Patent number: 9711967
    Abstract: A power conversion system for use with an alternate energy source includes a first inverter, a battery, and a second inverter, each of which receives power from the alternate energy source. The output of the first inverter and the grid are each connected to at least one electrical load via a load center. The battery is charged via a charger connected to the alternate energy source. This stored energy powers a selected portion of the electrical loads during a failure of the utility grid. The second inverter is connected between the battery and a transfer switch. During normal grid operation, the second inverter is disabled and the transfer switch connects the load center to the selected electrical loads. During a failure of the utility grid, the first inverter is disabled, the second inverter is enabled, and the transfer switch connects the second inverter to the selected electrical loads.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: July 18, 2017
    Assignee: Reliance Conrtols Corporation
    Inventor: Neil A. Czarnecki
  • Patent number: 9627910
    Abstract: A peak-cut control device is provided with a storage battery having a power generation device and a storage battery for charging/discharging a part of power generated by the power generation device. The peak-cut control device includes a difference power calculating section that calculates differential power between a planned power generation amount in the power generation device determined based on a temporary peak cut amount and a demand prediction power amount that predicts a power demand for each predetermined time, and also includes a peak-cut amount calculating section that compares the calculated differential power with chargeable power or dischargeable power per unit time of the storage battery every predetermined time and simulating charge/discharge of the difference power to/from the storage battery and an increase/decrease in the temporary peak-cut amount.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: April 18, 2017
    Assignee: JAPAN WIND DEVELOPMENT CO., LTD.
    Inventor: Matsuo Bando
  • Patent number: 9627891
    Abstract: There is provided a power supply system in which a user can easily determine an optimum method of consuming power obtained by discharging a power storage portion. The power supply system (1) includes: a power storage portion (11) that supplies a power by discharge; a dischargeable time prediction portion (55) that predicts, when a power is supplied to a predetermined load among a plurality of loads included in the load portion (31), a dischargeable time that is a time period in which the power storage portion (11) can perform discharge; and a notification portion (70) that notifies a user of the dischargeable time predicted by the dischargeable time prediction portion (55). The dischargeable time prediction portion (55) predicts a plurality of dischargeable times in which combinations of loads receiving power supply are different and the notification portion (70) notifies the dischargeable times.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: April 18, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshiya Iwasaki, Atsushi Suyama, Atsushi Shimizu
  • Patent number: 9579777
    Abstract: An impact type fastening tool, has a housing, a motor received in the housing, a main switch for controlling ON and OFF operations of the motor, an impact mechanism connected to the motor, and a control device. The control device comprises a current detecting module and a main control module connected to the current detecting module. The main control module can judge whether the impact mechanism performs an impact according to the signal detected by the current detecting module and control the motor to automatically stop in a preset time period after the impact mechanism performs an impact.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: February 28, 2017
    Assignee: Chervon (HK) Limited
    Inventors: Wu Chen, Liang Chen
  • Patent number: 9573489
    Abstract: Feeder sections to be a target of interchange are to be expanded in order to improve the effect of power interchange between feeders. A control device for railway power conditioner is connected to a first feeder connected to a load side of a transformer in a first railway substation including a transformer receiving power from a power grid, and a second feeder connected to a load side of a transformer in a second railway substation including a transformer receiving power from a power grid, and decides an amount of power interchanged between the first and second feeders. The control device decides the amount of power interchanged between the first and second feeders, using the received power in the first railway substation and power on the first feeder, and the received power in the second railway substation and power on the second feeder.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: February 21, 2017
    Assignees: Hitachi, Ltd., East Japan Railway Company
    Inventors: Yasuhiro Nakatsuka, Yasuhiro Imazu, Osamu Sakuchi, Masaya Ichinose, Yasuhiro Kiyofuji, Akira Bando, Jun Narushima, Toshihiko Usui, Naomi Sato, Masaki Uchita, Rikiya Inoue, Masahiko Honda
  • Patent number: 9520720
    Abstract: A system for powering a device is disclosed. The system includes at least one internal battery located in a device, at least one external battery connected to the device, and a master controller configured to connect either the at least one internal battery or the at least one external battery to a power bus to power the device.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: December 13, 2016
    Assignee: DEKA Products Limited Partnership
    Inventors: N. Christopher Perry, Stewart M. Coulter, Thomas A. Doyon
  • Patent number: 9466995
    Abstract: Disclosed herein is an embodiment of a charger having a power printed circuit board (PCB) that enables an alternating current (AC) power to flow into a self-contained automatic battery charging system. A first switchmode converter converts an AC input power into a direct current (DC) power thereby to provide an active power factor correction to obtain an improved power factor. The first switchmode converter comprising a high frequency isolation transformer which provides an electrical isolation between a primary circuitry and a secondary circuitry of the self-contained automatic battery charging system. A second switchmode converter connected to a DC output from the first switchmode converter regulates system output voltage and limits system output current to an electrical load. The DC output is connected to a battery and/or another electrical storage device to be charged and/or to a parallel-connected DC load to be powered.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 11, 2016
    Assignee: Stored Energy Systems, a Limited Liability Company
    Inventors: Timothy Groat, Kyle Miller, John Flavin
  • Patent number: 9372224
    Abstract: The disclosure describes a method for checking the proper method of operation of a current sensor which is designed to measure a battery current. During a precharge phase which begins at a time at which at least one electrical component is connected to a battery and during which the electrical component is precharged by a precharge current, at least one measured value provided by the current sensor is compared with an expected current value determined from an expected temporal profile of the precharge current. The disclosure also describes a computation unit and a battery which are designed to carry out the method according to the disclosure.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 21, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Andre Boehm, Joachim Rischen
  • Patent number: 9257870
    Abstract: A battery energy storage arranged to be connected to a capacitor link, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a direct current energy source connected in series with a voltage source converter. The voltage source converter is adapted to insert a positive voltage when the voltage of the battery module falls below a first threshold value, and to insert a negative voltage when the voltage of the battery module exceeds a second threshold value. The direct current energy source is adapted to be either charged or discharged during the voltage insertion by the voltage source converter. The disclosure also provides a battery energy storage system including such battery energy storage.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 9, 2016
    Assignee: ABB Research Ltd.
    Inventor: Tomas Tengner
  • Publication number: 20150130278
    Abstract: A feeding apparatus configured to be supplied with electric-power from a noncontact power-feeding module and to feed electric-power to a power-feeding object, the feeding apparatus, includes: an electric-current variation detecting block configured to detect variation of power-feeding electric-current supplied from this noncontact power-feeding module; a battery configured to assist supply of electric-power from the noncontact power-feeding module; and a charger configured to perform setting for boosting, based on a request from the electric-current variation detecting block, wherein the battery assists supply of electric-power when the setting for boosting is performed.
    Type: Application
    Filed: August 21, 2014
    Publication date: May 14, 2015
    Inventor: Yutaka Horie
  • Patent number: 9013062
    Abstract: A vehicle ECU executes a program including the steps of determining whether or not to permit discharge assistance, generating first assistance information, transmitting the first assistance information, carrying out discharge control when a result of determination as to whether or not to request discharge assistance and requested discharge electric power is received and when measures based on the result of determination can be taken, and giving notification about whether or not discharge assistance is carried out.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: April 21, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Shigeki Kinomura
  • Publication number: 20150080055
    Abstract: Tower systems suitable for use at cellular base stations include a tower, an antenna mounted on the tower, a remote radio head mounted on the tower and a power supply. A power cable having a power supply conductor and a return conductor is connected between the power supply and the remote radio head. A shunt capacitance unit that is separate from the remote radio head that is electrically coupled between the power supply conductor and the return conductor of the power cable.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 19, 2015
    Inventors: David J. Smentek, Michael R. Guerin, Morgan C. Kurk, John C. Chamberlain
  • Publication number: 20150069839
    Abstract: A battery energy storage arranged to be connected to a capacitor link, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a direct current energy source connected in series with a voltage source converter. The voltage source converter is adapted to insert a positive voltage when the voltage of the battery module falls below a first threshold value, and to insert a negative voltage when the voltage of the battery module exceeds a second threshold value. The direct current energy source is adapted to be either charged or discharged during the voltage insertion by the voltage source converter. The disclosure also provides a battery energy storage system including such battery energy storage.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 12, 2015
    Inventor: Tomas Tengner
  • Patent number: 8975781
    Abstract: Method and system for supplying emergency power to nuclear power plant, wherein the method includes, providing accumulator battery system, connected to emergency bus, the accumulator battery system is monitored by online monitoring system; in case of power loss of electrical devices of the nuclear power plant, the online monitoring system starts the accumulator battery system to provide power supply to the electrical devices of the nuclear power plant via the emergency bus. The present application is adapt to the key technologies and battery management technologies of million kilowatt-class advanced pressurized water reactor nuclear power plant, facilitating to improve the safety of the nuclear power plant in case of serious natural disasters beyond design working conditions.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: March 10, 2015
    Assignee: China Guangdong Nuclear Power Holding Corporation
    Inventors: Shanming Zhang, Changshen Lu, Zhonghua Dai, Junqi Chen, Chengming Wang, Yongnian Wang, Gang Zhu, Shuzhou Li, Jiedong Lin, Yukun Wu, Guangchao Su, Zongchuan Mei, Xuehua Han, Qiquan Zeng, Weigang Huang, Hongjiang Lin, Jun Li