Storage Battery Or Accumulator Patents (Class 307/66)
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Patent number: 12237682Abstract: An electrical energy storage device for use in an electrical distribution grid where storage may be located across various voltage transitions throughout the network, enabling energy to bypass stepdown transformers, monitoring on both sides of a transformer, and power conditioning to optimize transformer and grid performance.Type: GrantFiled: October 28, 2020Date of Patent: February 25, 2025Assignee: BreakEats LLCInventors: Robert James Fanfelle, Ezra Robert Gold
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Patent number: 12224620Abstract: Embodiments of this application provide a power supply circuit, including a first power conversion module, a plurality of battery banks, a first bus, and a second bus. A first wiring terminal of the first power conversion module is connected to the battery bank, a second wiring terminal of the first power conversion module is connected to the first bus and the second bus, and the first power conversion module is configured to: perform direct current to direct current (DC/DC) conversion on a current output by a corresponding battery bank, and output currents to the first bus and the second bus. In this application, a quantity of battery banks are set to be less than a quantity of inverters in a UPS system, so that costs are reduced.Type: GrantFiled: January 7, 2022Date of Patent: February 11, 2025Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.Inventor: Chuntao Zhang
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Patent number: 12212173Abstract: Various embodiments are described that relate to a battery. A battery, such as a battery with a common input/output terminal, can be tested. Part of this testing can include charging the battery and discharging the battery. It can be dangerous to switch out an interface between charging and discharging. Therefore, a single interface can be employed that enables the battery to be charged and discarded. With this, the battery can be charged and discharged without the danger of switching the interface.Type: GrantFiled: July 28, 2021Date of Patent: January 28, 2025Assignee: The Government of the United States, as represented by the Secretary of the ArmyInventors: Ivan Couvillon, Matthew Limpert
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Patent number: 12212176Abstract: A battery management system according to the present disclosure is for a battery connected in parallel to a smoothing capacitor through a high side power line and a low side power line. The battery management system includes a discharge control switch connected between a first node and a second node of the low side power line, a temperature sensing circuit including a thermistor, wherein a first terminal of the thermistor is connected to the first node, a precharge switch connected to a precharge power line between a second terminal of the thermistor to the second node, and a control unit. The control unit is configured to turn off the discharge control switch and turn on the precharge switch, for precharging of the smoothing capacitor, when the control unit receives a key-on signal.Type: GrantFiled: November 19, 2020Date of Patent: January 28, 2025Assignee: LG ENERGY SOLUTION, LTD.Inventors: Seung-Jin Noh, Seog-Jin Yoon, Won-Hoe Lee
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Patent number: 12206282Abstract: A backup power supply system supplies power to one or more loads in a situation where a power supply has caused a failure. The backup power supply system includes a plurality of power storage devices and a switching unit. The plurality of power storage devices are charged by the power supply. The switching unit switches electrical connection between the plurality of power storage devices to either a first state where the plurality of power storage devices are connected to the power supply in parallel or a second state where the plurality of power storage devices are connected to each other in series. The switching unit switches the electrical connection to the first state while the plurality of power storage devices are being charged and switches the electrical connection to the second state when the power supply has caused the failure.Type: GrantFiled: May 18, 2021Date of Patent: January 21, 2025Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Toshiharu Motofusa, Yohsuke Mitani
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Patent number: 12199435Abstract: An inductive stove appliance that includes a stove housing; a minimum of three cooking zones, with at least two of the cooking zones comprising induction coils; an electric oven; a set of cooktop and oven controls configured for operation of the inductive stove appliance, including operation of the minimum of three cooking zones and the electric oven; a power cord with a plug configured to couple with a standard 120V, 15A-30A, electrical power receptacle of a power distribution system; and a battery system disposed within the stove housing of the inductive stove appliance with one or more batteries integrated into the stove housing configured to: store power obtained from the power cord with the plug coupled with the electrical power receptacle of the power distribution system, power the minimum of three cooking zones of the inductive stove appliance, and power the electric oven of the inductive stove appliance.Type: GrantFiled: August 13, 2024Date of Patent: January 14, 2025Assignee: CHANNING STREET COPPER COMPANYInventors: Saul Thomas Griffith, Samuel Eli Calisch, Joshua Land, Tucker Gilman
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Patent number: 12199466Abstract: An uninterruptible power supply includes an input configured to be coupled to a renewable power source and an energy storage component configured to receive and store energy and to provide stored power. Power circuitry is configured to receive the renewable power and the stored power and provide output power to a load. A controller coupled to the power circuitry determines whether an amount of available renewable power exceeds the output power level provided to the load and, if so, provides excess power from the renewable power to the stored energy component.Type: GrantFiled: August 25, 2017Date of Patent: January 14, 2025Assignee: SCHNEIDER ELECTRIC IT CORPORATIONInventor: Mirza Akmal Beg
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Patent number: 12191667Abstract: An inductive stove appliance that includes a stove housing; a minimum of three cooking zones, with at least two of the cooking zones comprising induction coils; an electric oven; a set of cooktop and oven controls configured for operation of the inductive stove appliance, including operation of the minimum of three cooking zones and the electric oven; a power cord with a plug configured to couple with a standard 120V, 15A-30A, electrical power receptacle of a power distribution system; and a battery system disposed within the stove housing of the inductive stove appliance with one or more batteries integrated into the stove housing configured to: store power obtained from the power cord with the plug coupled with the electrical power receptacle of the power distribution system, power the minimum of three cooking zones of the inductive stove appliance, and power the electric oven of the inductive stove appliance.Type: GrantFiled: August 13, 2024Date of Patent: January 7, 2025Assignee: CHANNING STREET COPPER COMPANYInventors: Saul Thomas Griffith, Samuel Eli Calisch, Joshua Land, Tucker Gilman
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Patent number: 12193182Abstract: A hot-swappable electronic device and a method for preventing crash of the same are provided. The method includes: detecting, by a controller, whether or not the hot-swappable electronic device is in a power-on state; detecting, by the controller, whether or not a power connection port is connected to an alternating current power source when the hot-swappable electronic device is in the power-on state; detecting, by a first sensor and a second sensor, whether or not a first battery leaves a first battery installation groove and a second battery leaves a second battery installation groove when the power connection port is not connected to the alternating current power source; and lowering, by the controller, a system power consumption of the hot-swappable electronic device when the first battery leaves the first battery installation groove or the second battery leaves the second battery installation groove.Type: GrantFiled: March 8, 2023Date of Patent: January 7, 2025Assignee: Getac Technology CorporationInventor: Chun-Chi Wang
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Patent number: 12184118Abstract: A backup power supply control system includes: a first semiconductor switch that switches a main power supply line to an electrically conductive state or an electrically non-conductive state; and an auxiliary power supply switch that switches an auxiliary power supply line to the electrically conductive state or the electrically non-conductive state. A first driving unit controls, in a non-failure state, a second semiconductor switch, connected between a gate and source of a first semiconductor switch, OFF and thereby controls the first semiconductor switch ON. The first driving unit ensures, in the failure state, at least a gate-plateau voltage of the first semiconductor switch as a drive voltage for the second semiconductor switch. When a failure detection unit detects the failure state, the first driving unit controls the first semiconductor switch OFF by controlling the second semiconductor switch ON and a second driving unit controls the auxiliary power supply switch ON.Type: GrantFiled: December 20, 2021Date of Patent: December 31, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroki Akashi, Masafumi Nakamura, Masatoshi Nakase, Yuta Nagatomi, Kinya Kato
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Patent number: 12184074Abstract: Systems and methods relating to the conversion of DC power to AC power suitable for an AC power grid. DC power is received from one or more PV panels and is converted into DC power useful for charging an energy storage subsystem. The energy storage subsystem feeds into a DC/DC converter that converts the low voltage DC power into high voltage DC power suitable for a DC/AC inverter. The DC/AC inverter then converts the high voltage DC power into AC power suitable for an AC grid. A low voltage DC/DC converter can be used that is based on a differential geometry approach such that adjustable parameter values for components within the converter converge to nominal values as system parameters evolve.Type: GrantFiled: August 15, 2022Date of Patent: December 31, 2024Assignee: SPARQ SYSTEMS INC.Inventors: Majid Pahlevaninezhad, Praveen Jain
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Patent number: 12181170Abstract: An exemplary heating ventilation and cooling (HVAC) system includes a multi-phase power input, an AC-DC rectifier connected to a DC-AC inverter via a DC power bus, a multi-phase power output connecting the DC-AC inverter to a fan blower motor, and at least one redundancy power system. The redundancy power system is configured to bypass at least one of the AC-DC rectifier and the DC-AC inverter.Type: GrantFiled: February 5, 2024Date of Patent: December 31, 2024Assignee: Carrier CorporationInventors: Xu She, HanJong Kim, David Ginsberg
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Patent number: 12184077Abstract: A system and a method for connecting electrical load(s) to a first power source and a second power source including a switching device and a controller. The switching device includes a first semiconductor device pair and a second semiconductor device pair. The controller configured to receive a first set of electronic signals corresponding to a condition of the first power source and the second power source, isolate the first power source or the second power source from the one or more loads by transmitting a first set of control signals to the switching device, receive a second set of electronic signals corresponding to the condition of the first power source and the second power source, and connect the first power source or the second power source to the one or more loads by transmitting a second set of control signals to the switching device.Type: GrantFiled: October 19, 2022Date of Patent: December 31, 2024Assignee: ABB Schweiz AGInventors: Veerakumar Bose, Thomas Anthony Kendzia, III
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Patent number: 12176828Abstract: An energy storage device and a method thereof for supplying power are provided. Control a power conversion circuit to lower an AC output voltage during a preset period to a preset voltage, control the power conversion circuit to change from outputting the preset voltage to outputting a surge voltage, so that the power conversion circuit enters a surge generation period, and determine whether to turn off the energy storage device according to whether an output terminal of the power conversion circuit generating a surge current during the surge generation period.Type: GrantFiled: June 7, 2022Date of Patent: December 24, 2024Assignee: Merry Electronics(Shenzhen) Co., Ltd.Inventors: Yung-Hsiang Liu, Wei-Kang Liang, Yu-Kai Wang
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Patent number: 12164317Abstract: A voltage regulation circuit includes a voltage regulator that is configured to provide a stable output voltage based on an input voltage; and a control circuit, coupled to the voltage regulator, and configured to provide an injection current to maintain the stable output voltage in response to an enable signal provided at an input of the control circuit transitioning to a predetermined state and cease providing the injection current when the control circuit detects that a voltage level of the output voltage is higher than a pre-defined voltage level.Type: GrantFiled: August 10, 2023Date of Patent: December 10, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Yen-An Chang, Chia-Fu Lee, Yu-Der Chih, Yi-Chun Shih
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Patent number: 12166377Abstract: Disclosed are a power supply parallel control circuit, a method and a device. The circuit includes a power switching module, a first switch module, a second switch module, a third switch module and a fourth switch module all connected to the power switching module. The power switching module outputs a first switching signal according to a received switching control signal and control the second switch module to conduct unidirectionally. The first power supply continuously supplies power to a load and the third switch module is controlled to be on. The fourth switch module maintains unidirectional conduction and the second power supply starts to supply power to the load. The power switching module further outputs a second switching signal after a preset time to turn off the first switch module, the first power supply stops powering the load, and the fourth switch module is turned on.Type: GrantFiled: September 6, 2022Date of Patent: December 10, 2024Assignee: SHENZHEN WAYE TECHNOLOGY CO., LTD.Inventors: Bo Lan, Xinyan Liu
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Patent number: 12160168Abstract: An adaptive electrical power distribution panel receives electrical power from at least an alternative power source other than a utility electric grid, and selectively outputs power to a plurality of branch circuits, appliances, or devices. An internal or remote controller monitors conditions. In response to the monitored conditions, the controller algorithmically divides the plurality of branch circuits, appliances, or devices into a first group to receive power from the alternative power source and a second group to not receive power from the alternative power source, and breaks electrical connections between the alternative power source and the second group. The monitored conditions may include operating parameters the grid; an instantaneous or average individual current flow; and a charge state of storage batteries. The division into groups may also be in response to stored information, such as a priority of, or history of current usage by, each branch circuit, appliance, or device.Type: GrantFiled: January 23, 2024Date of Patent: December 3, 2024Assignee: KOOLBRIDGE SOLAR, INC.Inventor: Paul Wilkinson Dent
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Patent number: 12156625Abstract: The invention refers to an electronic device (10; 10a; 10b) comprising two or more battery packs (18a, 18b), an electric motor (16) which is operated by electric energy from at least one of the battery packs (18a; 18b) at a time, and an electronic control unit (20) for controlling operation of the electric motor (16). It is suggested that the electronic control unit (20) is adapted for switching operation of the electric motor (16) cyclically and consecutively from at least one battery pack (18a; 18b) to at least one other battery pack (18b; 18a). Switching form one operation cycle to the next operation cycle may be effected depending on the current temperature (T) of the at least one battery pack (18a, 18b), on an electric current (1) drawn from the at least one battery pack (18a, 18b) during the current operation cycle, or on a duration (t) of continuous operation of the at least one battery pack (18a, 18b) during the current operation cycle.Type: GrantFiled: October 14, 2021Date of Patent: December 3, 2024Inventor: Guido Valentini
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Patent number: 12155264Abstract: In the present uninterruptible power supply apparatus, in a switching period in which a bypass power feed mode is switched to an inverter power feed mode, a semiconductor switch is turned on, a first electromagnetic contactor is turned off, a second electromagnetic contactor is turned on and, in this state, an inverter is activated to start a lap power feed mode, and the semiconductor switch is turned off to end the lap power feed mode. Accordingly, the lap power feed mode can be completed in a short time to reduce an increase of a terminal-to-terminal voltage of a capacitor and thereby prevent the terminal-to-terminal voltage of the capacitor from exceeding an upper limit voltage.Type: GrantFiled: January 29, 2021Date of Patent: November 26, 2024Assignee: TMEIC CorporationInventors: Masamichi Kano, Hidenobu Tajima, Yousuke Hayashi
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Patent number: 12149117Abstract: An energy-saving operation and control method for a UPS. The method includes performing a concomitant detection on a self-discharge condition of the UPS without any further processing before the concomitant detection, to obtain an automatic discharging amount per unit of time when the battery is in an un-operating state; determining a replacement timing among three kinds according to a value of the discharging amount; and generating a replacement signal at a corresponding time point according to the replacement timing; according to the generated replacement signal, performing a process of power charging and power discharging on the battery.Type: GrantFiled: April 3, 2024Date of Patent: November 19, 2024Inventors: Feng Fan, Haoming Fan
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Patent number: 12132278Abstract: An unlocking circuit for a charging station when powered off is provided. A microcontroller unit outputs a first level signal and a second level signal when an auxiliary power supply is cut off. A first signal processing circuit receives the first level signal and converts the first level signal into a first control signal for unlocking an electronic lock. A second signal processing circuit receives the second level signal and converts the second level signal into a second control signal including information about action effectiveness of the electronic lock. An action execution circuit receives the first control signal and the second control signal, and responds to the first control signal and the second control signal to unlock the electronic lock.Type: GrantFiled: July 20, 2021Date of Patent: October 29, 2024Assignee: Sungrow Power Supply Co., Ltd.Inventors: Xin Chen, Yuefeng Yang, Linchong Xu
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Patent number: 12126212Abstract: A working method of a modular uninterruptible power supply (UPS) includes: obtaining working parameters of the modular UPS, where the working parameters include an input voltage parameter, a load parameter, and a battery parameter; and adjusting a working mode of a power module in the modular UPS according to at least one of the working parameters of the modular UPS, so that not all power modules are in a same working mode, where the modular UPS includes K working modules, and 2?K.Type: GrantFiled: December 27, 2021Date of Patent: October 22, 2024Assignee: Huawei Digital Power Technologies Co., Ltd.Inventor: Chuntao Zhang
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Patent number: 12126197Abstract: A device for supplying power from a vehicle battery to the outside is provided. The device includes an inverter circuit having a bridge circuit with multiple switching elements and that converts the received DC power into the AC power by switching the switching elements and that outputs the AC power. A controller controls an on/off state of each switching element through pulse width modulation. When an output AC output to the load has a value greater than a preset reference value or an input direct current input into the inverter has a value greater than a preset reference value, the controller changes a duty of each switching element to reduce an output AC voltage output from the inverter. When the reduced output AC voltage has a value equal to or less than a preset reference value, the controller stops a power conversion operation of the inverter.Type: GrantFiled: September 13, 2021Date of Patent: October 22, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Sung Uk Park, Hyun Wook Seong, Dong Gyun Woo, Chul Soon Kim, Hui Sung Jang, Jee Heon Kim
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Patent number: 12126214Abstract: This application provides an uninterruptible power system and a driving method for an uninterruptible power system, and relates to the field of power conversion technologies, to resolve output interruption of the uninterruptible power system. The uninterruptible power system includes a first power input end, a second power input end, a load end, and a bypass, where the bypass includes a first bidirectional switch, and the first bidirectional switch is connected to the first power input end and the load end, and is configured to control connection or disconnection between the first power input end and the load end; and at least one main circuit, where each main circuit includes a bus and an inverter output unit. An input end of the bus is connected to the second power input end, and an output end of the bus is connected to the inverter output unit.Type: GrantFiled: September 12, 2022Date of Patent: October 22, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Chuntao Zhang
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Patent number: 12103429Abstract: A method and a system for a high-voltage (HV) battery pack having multiple rechargeable energy storage devices (RESSs) that are connectable to an external load via a power bus via a pre-charge circuit in parallel with a first electrical contactor. The RESSs are monitored via current sensors. The current sensors monitor current levels between the RESSs and the power bus, detect a low current level from one of the current sensors, identify one of the RESSs associated with the low current level, activate the respective pre-charge circuit, monitor the electrical current, and determine a state of the respective first electrical contactor based upon the electrical current.Type: GrantFiled: May 11, 2023Date of Patent: October 1, 2024Assignee: GM Global Technology Operations LLCInventors: James C. Gibbs, Anthony H. Heap
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Patent number: 12107439Abstract: A wireless charging transmitting circuit and a wireless charging method are provided. The wireless charging transmitting circuit includes: a power input interface; a voltage regulator circuit, where one end is connected to the power input interface, and the other end is separately connected to a first input end of a first inverter circuit and a first input end of a second inverter circuit; a first transmit coil; a second transmit coil, connected to an output end of the second inverter circuit; and a charging control circuit, configured to: when there is a receive coil in each of a charging range of the first transmit coil and a charging range of the second transmit coil, control the first transmit coil and the second transmit coil to simultaneously perform charging, or control the first transmit coil and the second transmit coil to alternately perform charging.Type: GrantFiled: December 23, 2020Date of Patent: October 1, 2024Assignee: VIVO MOBILE COMMUNICATION CO., LTD.Inventor: Wencheng Zhang
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Patent number: 12100949Abstract: An AC line voltage detection circuit includes an AC sense circuit, a power supply control circuit, and a power supply hold-up circuit. The AC sense circuit is configured to generate a signal to a processor and to the power supply control circuit in response to sensing an absence of AC line voltage. The power supply control circuit is configured to generate a control signal to a power supply that provides power to the processor to shut down the power supply. The processor is configured generate a signal to the power supply hold-up circuit configured to generate a signal to the power supply control circuit to prevent shut down of the power supply. The power supply hold-up circuit signal overrides the AC sense circuit signal. The processor is further configured to generate a subsequent signal to the power supply hold-up circuit to permit shut down of the power supply.Type: GrantFiled: April 12, 2022Date of Patent: September 24, 2024Assignee: Landis+Gyr Technology, Inc.Inventor: Doug Busekrus
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Patent number: 12095292Abstract: A battery charging apparatus includes a battery charger having a housing and a battery mount plate for charging the battery. A contact block of the battery mount plate includes an electrical terminal configured to provide a charging voltage to the battery. The battery can operate in a first state in which the battery delivers a first delivery voltage or in a second state in which the battery delivers a second and higher delivery voltage. The battery can be charged in the first state or the second state. The battery charger switches the battery between the first state and the second state in which power is provided to the battery through the electrical terminal at the second and higher charging voltage to charge the battery.Type: GrantFiled: August 22, 2023Date of Patent: September 17, 2024Inventor: Ross Kanarek
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Patent number: 12088132Abstract: Systems and methods for extending battery backup power to an electrical substation include or utilize a latching direct current contactor having a current input and a current output, and a controller configured to monitor all alternating current inputs to an electrical substation, and to trip the latching direct current contactor when all alternating current inputs and auxiliary power to the electrical substation are dead, whereby direct current does not flow through the latching direct current contactor when supplied loads in the substation, such as relaying and communications, are not needed, and to close the latching direct current contactor when at least one alternating current input or auxiliary power is live, whereby direct current flows through the latching direct current contactor when the direct current supplied loads are needed.Type: GrantFiled: August 1, 2022Date of Patent: September 10, 2024Inventors: Gerald Robert Callison, Sebastien Christophe Billaut
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Patent number: 12081204Abstract: A power switch device includes a first terminal intended to be connected to a source of a first supply potential, a second terminal configured to supply a second potential, and a third terminal intended to be connected to a second source of a third supply potential. The device includes a first PMOS transistor having a source connected to the second terminal and a drain connected to the third terminal, a second PMOS transistor having a source connected to the second terminal, and a third PMOS transistor having a source connected to the first terminal and a drain connected to the drain of the second transistor. A control circuit generates gate control signals to control operation of the first, second and third PMOS transistors dependent on the first, second, and third supply potentials.Type: GrantFiled: August 10, 2022Date of Patent: September 3, 2024Assignee: STMicroelectronics (Rousset) SASInventor: Laurent Lopez
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Patent number: 12074471Abstract: An uninterruptible power supply (UPS) includes an energy routing circuit coupled to a grid and an energy storage device and configured to selectively provide energy to a first load from the grid and the energy storage device based on a state of the grid. The UPS further includes a controller configured to control the energy routing circuit and to implement a first UPS node configured to establish and execute a first smart contract for energy exchange with a first consumer node associated with the first load and at least one second smart contract for energy exchange with at least one of a grid node associated with the grid and a second consumer node associated with a second load coupled to the grid via a second UPS.Type: GrantFiled: December 18, 2020Date of Patent: August 27, 2024Assignee: Eaton Intelligent Power LimitedInventors: James Edwin Martin, James Michael Andrew Queen
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Patent number: 12074473Abstract: A changeover device for selectively supplying power to at least one load from a grid or a bidirectional inverter includes an input having a grid neutral conductor connection and a grid phase conductor connection for connection to the grid. The changeover device further includes a first output having an inverter neutral conductor connection and an inverter phase conductor connection for connecting the bidirectional inverter, a second output having a load neutral conductor connection and a load phase conductor connection for connecting the load and a switching circuit, the actuator of which is connected to an actuator input of the changeover device. The switching circuit includes a first and a second normally closed contact and a normally open contact that are connected in an interconnection to the grid phase conductor connection, the inverter phase conductor connection, and the load phase conductor connection. An associated method is also disclosed.Type: GrantFiled: July 18, 2022Date of Patent: August 27, 2024Assignee: SMA Solar Technology AGInventor: Claus Allert
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Patent number: 12071086Abstract: The present disclosure relates to an on-board electrical network for a motor vehicle. The motor vehicle comprises a battery cell unit configured as a so-called SmartCell. The on-board electrical network also comprises a controller for operating the battery cell unit. In order to be able to be supplied with electric energy, the controller comprises a supply connection for supplying a supply voltage. The supply voltage is usually supplied by an energy supply device of the on-board electrical network, which is coupled to the controller via a first connection line. In order to allow for a redundant energy supply for the controller, a second connection line is provided in addition to the first connection line, via which a battery cell of the respective battery cell unit is coupled to the supply connection. The supply voltage can thus be supplied either via the first connection line or via the second connection line on the basis of an operating state of the energy supply device.Type: GrantFiled: April 30, 2021Date of Patent: August 27, 2024Assignee: AUDI AGInventor: Daniel Ruppert
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Patent number: 12065053Abstract: This disclosure presents a portable load bank apparatus, system, method of control, and method of manufacture. A portable load bank apparatus may comprise one or more of a vehicle, a load bank, a set of batteries, a set of battery chargers, one or more processors, and/or other components. The load bank may be configured to perform a load test of an external power source. The processor(s) may be configured to cause one or more battery chargers in the set of battery chargers to direct an amount of a power output received by the load bank from the external power source to the set of batteries. The set of batteries may be used to provide electrical energy to one or more of an electric motor of the vehicle, one or more other electric vehicle, and/or other sources that may need electrical energy.Type: GrantFiled: July 17, 2023Date of Patent: August 20, 2024Inventor: Shelby Kenneth Campbell Tyne
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Patent number: 12062918Abstract: A direct current (DC) bus voltage from a combined output of a plurality of DC power modules is controlled based on an alternating current (AC) voltage of a power grid. The DC bus voltage tracks the AC grid voltage to provide efficient conversion between the DC power sources and the AC grid, even when the amplitude of the AC grid voltage varies. In one example, a variable reference voltage is generated based on a detected AC grid voltage. The reference voltage increases and decreases in proportion to increases and decreases in the AC grid voltage. In this manner, large differences between the bus voltage and the grid voltage are avoided. By closely tracking the two voltages, efficiency in the modulation index for power conversion can be achieved.Type: GrantFiled: August 3, 2022Date of Patent: August 13, 2024Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Xiaolin Mao, Heping Dai, Huibin Zhu, Dianbo Fu
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Patent number: 12062943Abstract: An Uninterruptible Power Supply (UPS) including an input configured to receive input AC power having an input AC voltage, a backup power input configured to be coupled to a backup power source and to provide DC power to the backup power source for charging, a positive DC bus and a negative DC bus, the positive and negative DC busses being galvanically coupled to the backup power input, and a converter coupled to the input, the backup power input, and the positive and negative DC busses, the converter including a first inductor, a second inductor, a first converter switch configured to couple the first inductor to a neutral connection, a second converter switch configured to couple the second inductor to the positive DC bus, and a third converter switch configured to couple the second inductor to the negative DC bus, wherein the UPS is voltage-frequency independent.Type: GrantFiled: August 29, 2023Date of Patent: August 13, 2024Assignee: SCHNEIDER ELECTRIC IT CORPORATIONInventors: Sreenadh Peramsetty, Pavan Kumar Gudipalli
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Patent number: 12046945Abstract: A power supply apparatus includes a switching circuit including a switcher, a first input terminal, a second input terminal, and an output terminal, the first input terminal is configured to receive a first voltage provided by a first power supply, the second input terminal is configured to receive a second voltage provided by a second power supply, and the switcher is configured to control the output terminal to be connected to the first input terminal or control the output terminal to be connected to the second input terminal; and a converting circuit including an input terminal connected to the output terminal of the switching circuit, an output terminal connected to an electrical device, and the converting circuit is configured to receive the first or the second voltage, convert the received first second voltage into a third voltage, and output the third voltage through the output terminal of the converting circuit.Type: GrantFiled: January 24, 2022Date of Patent: July 23, 2024Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Dongsheng Zhao, Jianli Tong, Chuangpeng Li
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Patent number: 12034381Abstract: A converter includes a bidirectional DC-AC converter circuit, an input capacitor connected to an AC input of the bidirectional DC-AC converter, a bus capacitor connected to a DC output of the bidirectional DC-AC converter circuit, a switch connected between a positive terminal of the input capacitor and an AC power supply, a pre-charger having an input connected to the AC power supply and an output connected to the DC output of the bidirectional DC-AC converter circuit, and a controller configured to convert the voltage across the bus capacitor into an inverting voltage and apply the inverting voltage to the input capacitor before turning on the switch.Type: GrantFiled: March 16, 2022Date of Patent: July 9, 2024Assignee: Santak Electronic (Shenzhen) Co., LtdInventors: Yue Yang, Dengke Zhang, Yulong Hao
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Patent number: 12034087Abstract: The inventive technology, in certain embodiments, may be generally described as a solar power generation system with a converter, which may potentially include two or more sub-converters, established intermediately of one or more strings of solar panels. Particular embodiments may involve sweet spot operation in order to achieve improvements in efficiency, and bucking of open circuit voltages by the converter in order that more panels may be placed on an individual string or substring, reducing the number of strings required for a given design, and achieving overall system and array manufacture savings.Type: GrantFiled: July 18, 2022Date of Patent: July 9, 2024Assignee: AMPT, LLCInventors: Anatoli Ledenev, Robert M. Porter
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Patent number: 12021405Abstract: Disclosed in the present disclosure are a direct current power distribution method, a direct current power distribution device and a direct current power distribution system. The method includes: determining working modes of a direct current power distribution system, correspondingly obtaining, under different working modes, working parameters of the direct current power distribution system, and regulating operation of the direct current power distribution system according to the working parameters to achieve an electric energy balance of a power consumption side, a power generation side of a power grid, and an energy storage side. According to the embodiments of the present disclosure, by the regulating of the direct current power distribution system, an electric energy balance among the power consumption side, the power generation side of the power grid, and the energy storage side is achieved.Type: GrantFiled: May 29, 2021Date of Patent: June 25, 2024Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Wu Wen, Shugong Nan, Lei Li, Shiyong Jiang, Zhigang Zhao
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Patent number: 12015304Abstract: A power supply system includes a plurality of parallelly-connected uninterruptible power supplies (UPSs), where each UPS collects a first current of the UPS within a collection period in a first duration. In a current equalization period in the first duration, a direct current to alternating current conversion module is controlled to output a first compensation current, where the first compensation current includes at least one of a first compensation reactive current component or a first quantity of first compensation harmonic components.Type: GrantFiled: October 19, 2022Date of Patent: June 18, 2024Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.Inventors: Zhou Shu, Ran Li
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Patent number: 12009693Abstract: Embodiments of present disclosure relate to apparatus and method for flux management in the ZISC based UPS system. The apparatus comprises: a first determining unit configured to determine a first offset flux on a series reactor in the ZISC based UPS system when power quality events occur in a grid connected to the ZISC based UPS system and the ZISC based UPS system operates in a grid-connected mode; and a first resetting unit configured to provide synthetic impedance damping to the series reactor to reset the first offset flux.Type: GrantFiled: January 9, 2020Date of Patent: June 11, 2024Assignee: ABB SCHWEIZ AGInventors: Sridhar Pulikanti, Simon Walton, Robert Turner, Nicholas James Elliott
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Patent number: 12009687Abstract: A battery that periodically checks an actual battery capacity or energy with charge to a preset voltage (e.g., 4.1 V). The battery then decides the battery capacity or energy. If the capacity or energy is insufficient, then an apparatus in or associated with the battery slightly increases charging voltage to a point where the capacity is sufficient (e.g. from 4.1 V to 4.11 V). The process of periodically checking and slightly increasing charging voltage is performed until charging voltage reaches specification limit (e.g., 4.2 V). The scheme described herein has benefits such as battery longevity can be extended, risk of insufficient energy reserve can be reduced, burst power can be used as long as possible, and/or even higher burst power can be used.Type: GrantFiled: October 9, 2020Date of Patent: June 11, 2024Assignee: Intel CorporationInventors: Naoki Matsumura, Charles Rego, Minh Le
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Patent number: 11996693Abstract: A support system for an AC power transmission system, comprising an energy storage arrangement comprising a plurality of storage units and a main controller configured to control the operation of the energy storage arrangement. Each storage unit comprises at least three control signal connections and is configured to receive a control signal from at least three storage entities via said control signal connections, wherein each of the storage entities is either the main controller or a storage unit controller of an adjacent storage unit. The storage units are arranged to forward a control signal received via a first one of said control signal connections to all adjacent storage units that are connected via the remaining ones of said control signal connections.Type: GrantFiled: April 14, 2021Date of Patent: May 28, 2024Assignee: HITACHI ENERGY LTDInventors: Per Karreby, Daniel Hallmans, Lexuan Meng, Maria Werlefors
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Patent number: 11994190Abstract: Linear drive with a gear housing extending along a longitudinal axis, in which a spindle is rotatably mounted with a worm wheel connected to it in a rotationally fixed manner, a spindle nut running on the spindle, which is adjustable on the spindle between a retracted position and an extended position and which acts on a lifting tube. The spindle nut is arranged in the retracted position guide tube and retracted in the region of a rear end of the guide tube, and thus the lifting tube is also retracted into the guide tube. The spindle nut is arranged at a front end of the guide tube in the extended position. An electric motor drives the screw, which extends along a transverse axis extending transversely to the longitudinal axis, wherein the electric motor is accommodated in a motor housing which is connected to the gear housing. Furthermore, a control system is arranged in a control housing.Type: GrantFiled: December 14, 2020Date of Patent: May 28, 2024Assignee: DEWERTOKIN KFTInventors: Péter Bartus, Zsolt Mojzes
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Patent number: 11996730Abstract: A backup power supply device having a short charging time is provided. The backup power supply device for supplying power when a main power supply is under a power failure includes first and second battery packs connected in parallel, a charging circuit for charging the first and second battery packs, first and second discharging switches for causing the first and second battery packs to discharge to the load device respectively, and a control unit. The control unit compares the battery voltages of the first and second battery packs with an output voltage from the main power supply. The control unit sets the first and second discharging switches to ON when the battery voltages are lower than the output voltage. When the battery voltage of the battery pack exceeds the output voltage of the main power supply due to charging, the control unit sets the first discharging switch and the second discharging switch to OFF.Type: GrantFiled: April 30, 2021Date of Patent: May 28, 2024Assignee: FDK CORPORATIONInventor: Katsuhiko Tamaki
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Patent number: 11990761Abstract: A power supply system with current sharing includes a current sharing bus, a plurality of power supply units, and a plurality of controllers. The power supply units are connected to each other through the current sharing bus. Each power supply unit provides a current sharing signal value to the current sharing bus, and provides an output current to a load. Each controller receives current sharing signal values provided from other power supply units and current signal values corresponding to the output currents. When determining that the current signal value is less than a reference current sharing signal value, the controller increases an output voltage of the power supply unit to increase the output current. Otherwise, the controller decreases the output voltage to decrease the output current so that so that the output currents of the power supply units are shared to supply power to the load.Type: GrantFiled: November 10, 2022Date of Patent: May 21, 2024Assignee: FSP TECHNOLOGY INC.Inventors: Chien-Li Tsai, Chih-Fan Lin, Chih-Hsien Hsieh
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Patent number: 11955838Abstract: A system includes a DC bus and an auxiliary power source coupled to the DC bus. The system further includes an energy storage device and a modular uninterruptible power supply (UPS) including a first uninterruptible power module (UPM) coupled to the DC bus and configured to provide power to an AC load from the auxiliary power source and a second UPM coupled to the DC bus and the energy storage device and configured to transfer energy between the DC bus and the energy storage device to regulate a voltage on the DC bus.Type: GrantFiled: April 27, 2021Date of Patent: April 9, 2024Assignee: Eaton Intelligent Power LimitedInventors: George Arthur Navarro, Swanand Juvekar, Vincent Edward Wilder
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Patent number: 11955836Abstract: When a power outage occurs, an uninterruptable power supplies may lose all grid connections including a neutral connection which may be connected to ground. To avoid the loss of a ground connection to the power circuits of the UPS, a switch unit may be used to selectively connect a neutral conductor of the circuit to a ground terminal. The switch unit may comprise a power relay, a fast switch device (FSD), and a controller. The power relay and FSD may be connected in series between the neutral conductor of the circuit and a ground terminal. The controller may be configured to: close the FSD when the voltage between ground and neutral (Vng) goes above a first threshold, open the FSD when the voltage between any grid connection and neutral (Vg) goes above a second threshold, and close the FSD when Vg is below the second threshold.Type: GrantFiled: October 18, 2021Date of Patent: April 9, 2024Assignee: Solaredge Technologies Ltd.Inventors: Natan Schecter, Roni Salman, Aryeh Zafranski, Yuval Paz
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Method for reducing UPS component stresses during transition from inverter to green/bypass operation
Patent number: 11947402Abstract: UPS systems, methods, and computer-readable mediums utilizing electromechanical bypass relays to switch from an on-line mode of operation to a green/bypass mode of operation include control logic to adaptively adjust the timing of when an inverter of a UPS turns off to prevent backfeeding a utility. After the UPS is instructed to transition from the on-line mode to the green mode, a monitoring period begins. During the monitoring period, a parameter related to the output current of the inverter is monitored and compared to a predetermined threshold. If the parameter exceeds the predetermined threshold before a fixed period time has elapsed, the inverter is turned off early. If the inverter current does not exceed the predetermined value within the fixed period of time, the inverter is turned off.Type: GrantFiled: March 7, 2023Date of Patent: April 2, 2024Assignee: SCHNEIDER ELECTRIC IT CORPORATIONInventors: Wei-Hsiang Lin, Adam Daniel Sanner