Substitute Or Emergency Source Patents (Class 307/64)
  • Patent number: 11031787
    Abstract: Systems include one or more critical datacenter connected to behind-the-meter flexible datacenters. The critical datacenter is powered by grid power and not necessarily collocated with the flexboxes, which are powered “behind the meter.” When a computational operation to be performed at the critical datacenter is identified and determined that it can be performed art a lower cost at a flexible datacenter, the computational operation is instead routed to the flexible datacenters for performance. The critical datacenter and flexible datacenters preferably shared a dedicated communication pathway to enable high-bandwidth, low-latency, secure data transmissions.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 8, 2021
    Assignee: LANCIUM LLC
    Inventors: Michael T. McNamara, David J. Henson, Raymond E. Cline, Jr.
  • Patent number: 11031813
    Abstract: A system includes a flexible datacenter and a power generation unit that generates power on an intermittent basis. The flexible datacenter is coupled to both the power generation unit and grid power through a local station. By various methods, a control system may detect a transition of the power generation unit into a stand-down mode and selectively direct grid power delivery to always-on systems in the flexible datacenter.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 8, 2021
    Assignee: LANCIUM LLC
    Inventors: Michael T. McNamara, David J. Henson, Raymond E. Cline, Jr.
  • Patent number: 11025168
    Abstract: According to one aspect, a UPS system is provided including an input configured to receive AC input power, an output configured to provide AC output power to a load, a rectifier coupled to the input, an inverter coupled to the rectifier and the output, an auxiliary branch coupled to the input and the output, and a controller coupled to the rectifier, the inverter, and the auxiliary branch, and configured to receive voltage information indicative of a voltage level of the AC input power and AC output power, select, based on the voltage information satisfying a first condition, a buck mode of operation, select, based on the voltage information satisfying a second condition, a freewheel mode of operation, and communicate one or more control signals to at least one of the rectifier, the inverter, and the auxiliary branch based on the selected mode of operation.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: June 1, 2021
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Jingwen Xie, Tongfei Zhang, Chenlei Bao, Puyang Cheng
  • Patent number: 11025068
    Abstract: A modular power conversion system and power electronics enabling any power production device or entity to connect to any load or electrical grid including, but not limited to, electricity conversion between low level producer(s) such as a diesel or gas generator, Stirling engine, wind turbine or photovoltaic array, to a consumer such as a commercial or residential building, either directly or via the grid, is disclosed. The modular power conversion system including hardware and software power electronics designed as a modular power stage aggregating different power production entities, transmission systems, consumption and loads as well as energy storage is also disclosed.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: June 1, 2021
    Inventors: Jason M. Sachs, Donald J. Lucas
  • Patent number: 11019747
    Abstract: A bus architecture for supplying power to loads in a datacenter includes a first DC bus including a first bus conductor and a first plurality of source/load groups. Each of the first plurality of source/load groups includes a first power source and a first plurality of loads, wherein at least one of the first plurality of loads includes a server rack. The first power source in each of the first plurality of source/load groups is sized to supply power to the first plurality of loads for the corresponding one of the first plurality of source/load groups. The first power source in each of the first plurality of source/load groups is also sized to provide excess capacity to be shared by the first plurality of loads corresponding to other ones of the first plurality of source/load groups.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: May 25, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Christian L. Belady, Sean M. James, Osvaldo P. Morales
  • Patent number: 11001338
    Abstract: A bicycle electric component comprises a wireless communicator, a power source, and a switcher. The wireless communicator is configured to receive a wireless signal. The power source is configured to supply a first electric power to the wireless communicator. The switcher is configured to change an electric connection state between the wireless communicator and the power source. The switcher includes an electric generator configured to generate a second electric power by an external input to a bicycle.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: May 11, 2021
    Assignee: SHIMANO INC.
    Inventors: Takafumi Suzuki, Takaya Masuda, Toshihiko Takahashi, Masafumi Tanaka
  • Patent number: 11005289
    Abstract: An uninterruptible power supply for providing an output power signal to a load comprises a ferroresonant transformer, a resonant capacitor, and an inverter. The resonant capacitor is operatively connected to the ferroresonant transformer. The inverter is operatively connected to the ferroresonant transformer. The inverter is configured to generate the output power signal based on at least one inverter control signal such that the output power signal is a quasi square wave having at least one change of phase and an upper limit. The at least one inverter control signal is held in an OFF state during at least a portion of the at least one change of phase, pulse-width modulated during at least a portion of the at least one change of phase, and held in an ON state when the output power signal is at the upper limit.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: May 11, 2021
    Assignee: ALPHA TECHNOLOGIES SERVICES, INC.
    Inventors: James Patrick Richardson, Thanh Quoc Le
  • Patent number: 10992165
    Abstract: The redundant power supply system, in which a predetermined power is supplied via a first DC-DC converter (DDC) to a first battery and a first load of a primary system and the predetermined power is supplied via a second DDC to a second battery and a second load of a secondary system independent of the primary system, includes: a first switching element interposed between the second DDC and the second battery; a first diode which is connected in parallel to the first switching element and performs rectification in a direction from the second battery toward the second DDC; and a control section which turns off the first switching element when the second battery is in a first state where a stored power amount thereof is not smaller than a predetermined first threshold value, and turns on the first switching element when a state other than the first state is assumed.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: April 27, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Naoto Matsushita
  • Patent number: 10985608
    Abstract: A back-up power control system for an AC-powered component includes a bypass starter coupled to an AC bus, and a variable frequency drive (VFD) coupled to a DC bus. The VFD is selectively operable in each of (i) an active mode, such that said VFD converts DC power provided by the DC bus into a selectable frequency AC power signal, and (ii) a stand-by low-power mode. The system also includes a controller operatively coupled to the bypass starter and the VFD and programmed to (a) while the AC bus is in a normal operating condition, command the VFD to the low-power mode and operatively couple the bypass starter to the AC-powered component, and (b) while the AC bus is in an outage condition, command the VFD to the active mode and operatively couple the VFD to the AC-powered component.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 20, 2021
    Assignee: General Electric Company
    Inventor: Ernest Russell Murray
  • Patent number: 10982602
    Abstract: An engine controller to control a plurality of engines is disclosed. The engine controller may determine that power to a load is to be increased, wherein the load is configured to be powered by one or more of the plurality of engines; determine that an engine, of the plurality of engines, is configured to provide supplemental power to the load after a temperature of the engine satisfies a threshold, wherein the threshold corresponds to a warm-up operation of the engine being completed; determine that the temperature of the engine does not satisfy the threshold; obtain, via an operator interface, an authorization to bypass the warm-up operation of the engine; and bypass, based on obtaining the authorization, the warm-up operation for the engine to permit the engine to provide instantaneous power to the load.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: April 20, 2021
    Assignee: Caterpillar Inc.
    Inventors: Keith R. Folken, David Ochoa, Perry Converse, Vijay Janardhan, Christian Andrés Herrera Hernandez
  • Patent number: 10978906
    Abstract: Systems and apparatuses include a mesh network for power distribution. The mesh network includes a plurality of interconnected four-way automatic transfer switches. Each four-way automatic transfer switch includes a common pole, a first pole selectively coupled to the common pole with a first switching device, a second pole selectively coupled to the common pole with a second switching device, a third pole selectively coupled to the common pole with a third switching device, and a fourth pole selectively coupled to the common pole with a fourth switching device. The common pole of a first interconnected four-way automatic transfer switch of the plurality of interconnected four-way automatic transfer switches is structured to provide power to a corresponding load, and the common poles of two or more of the plurality of interconnected four-way automatic transfer switches are structured to receive power from corresponding power sources.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: April 13, 2021
    Assignee: Cummins Power Generation IP, Inc.
    Inventors: Timothy R. Beaucage, Julie M. Delago
  • Patent number: 10978904
    Abstract: A system for performing computing operations in a data center includes one or more sets of computer systems, one or more primary power systems, and a reserve power system. The primary power systems include a downstream portion that supplies power to at least one of the sets of computer systems. The reserve power system includes switches that switch between supplying a primary power feed and a reserve power feed from the reserve power system through part of the primary power system. An input resiliency switch can switch between supplying primary power or reserve power to support power supplied to the sets of computer systems through the primary power system based upon a primary power feed fault. A power distribution switch can switch between supplying primary power and reserve power to part of the downstream portion of the primary power system to bypass an upstream portion of the primary power system.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: April 13, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Paul Andrew Churnock, Huyen Van Nguyen, Kelsey Michelle Wildstone, Patrick Hughes, Nigel McGee
  • Patent number: 10974607
    Abstract: A power system is disclosed. The power system includes a first power generating unit. The first power generating unit includes a first power converting subunit and a first control unit coupled to the first power converting subunit, where the first control unit is configured to regulate a voltage of the first power generating unit. The power system further includes a second power generating unit coupled to the first power generating unit and a load, where the second power generating unit includes a second power converting subunit and a second control unit coupled to the second power converting subunit, wherein the second control unit is configured to control a current of the second power generating unit to share a quantity of electrical output current flowing through the load among the first and second power generating units.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: April 13, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Ajith Kuttannair Kumar, Govardhan Ganireddy, Shahid Ali, Prashanth Manikumar Chennamsetty
  • Patent number: 10960837
    Abstract: A backup power supply system that is intended to be installed in a vehicle, the system includes a backup battery, a synchronous voltage step-up circuit, a user device providing an emergency service, supplied with power under normal circumstances by the main battery of the vehicle, and under exceptional circumstances by the backup battery through the voltage step-up circuit. The voltage step-up circuit includes a coil, a first transistor and a second transistor. The system includes a backup battery discharge test circuit. The first transistor is used to draw current from the backup battery according to a predefined pattern, which makes it possible, by simultaneously measuring the voltage of the backup battery, to determine an indicator of the state of health of the backup battery.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: March 30, 2021
    Assignees: Continental Automotive France, Continental Automotive GmbH
    Inventor: Ludovic Marie-Joseph Xavier
  • Patent number: 10965152
    Abstract: An uninterruptible power supply adapted to be connected between an AC line and a load, comprising a battery system, an inverter, and a transformer, and a controller. The battery system stores battery power. The inverter is operatively connected to the battery system. The transformer is operatively connected to the AC line, the load, and an inverter winding operatively connected to the inverter. The controller controls the inverter to supply power to the primary winding using battery power stored in the battery system based on a cost value indicative of reduction of life of the battery system.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: March 30, 2021
    Assignee: ALPHA TECHNOLOGIES SERVICES, INC.
    Inventors: Jim Heidenreich, Toby Peck, Craig E. Paoli, Peter Schmidt, Greg Thomas, John Rodgers
  • Patent number: 10965149
    Abstract: An electrical power restoration system for a circuit assembly having a circuit breaker, an electrical load and a circuit conditioner, includes a circuit controller that is positioned along the circuit assembly between the circuit breaker and the electrical load. The circuit controller is electrically connected to and selectively controls activation and/or deactivation of the circuit conditioner. The circuit conditioner is positioned along the circuit assembly between the circuit controller and the electrical load. The electrical power restoration system can further include a first hot conductor that selectively conducts AC power from the circuit breaker to the circuit controller. The circuit controller monitors a current passing through the first hot conductor to determine whether the current passing through the first hot conductor is at or above a predetermined threshold level.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: March 30, 2021
    Assignee: RUNWAY ENERGY, LLC
    Inventor: Mark D. Schey
  • Patent number: 10965151
    Abstract: A motor drive system includes a converter configured to convert power between AC power in a power source and DC power in a DC link, an inverter for drive configured to convert power between the DC power in the DC link and AC power serving as drive power or regenerative power for a servomotor for drive, a motor control unit for drive configured to control the servomotor for drive connected to the inverter for drive, a power storage device configured to store the DC power from the DC link or to supply the DC power to the DC link, and a base holding energy change unit configured to change a base holding energy defined as a reference value of a holding energy of the power storage device, in accordance with the holding energy of the power storage device.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: March 30, 2021
    Assignee: Fanuc Corporation
    Inventors: Shougo Shinoda, Satoshi Ikai
  • Patent number: 10958097
    Abstract: A circuit for selecting between a primary power source and a back-up power source is provided in one embodiment. The circuit includes a first port configured to be coupled to a primary power source, a second port configured to be coupled to a back-up power source, a third port configured to be coupled to provide power to a load. The circuit also includes first and second power field effect transistors (FET) coupled between the second port and the third port, a third power FET coupled between the first port and the third port, and a dual ideal diode-OR controller coupled between the second and third power FETs to selectively turn on and off the second and third power FETs. The circuit further includes an opto-isolator coupled to a control input of the first power FET and a controller, coupled to the opto-isolator, that selectively turns on and off the opto-isolator.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 23, 2021
    Assignee: CommScope Technologies LLC
    Inventor: Daryl A. Coleman
  • Patent number: 10958098
    Abstract: Methods, systems, and apparatus, for powering AC and DC loads in the event of a power failure. In one aspect, a system includes one or more DC loads that are powered by DC power, one or more AC loads that are powered by AC power, and an uninterruptible power supply (UPS). The UPS includes AC terminals connected to an AC power source and to the one or more AC loads to power the AC loads, DC terminals connected to a backup battery and to the one or more DC loads to power the DC loads a bidirectional AC/DC converter connected between the AC terminals and the DC terminals, and a controller that selectively switches the bidirectional AC/DC converter to the first mode when the AC power source is available and to the second mode when the AC power source is not available.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: March 23, 2021
    Assignee: Google LLC
    Inventors: Xiong Li, Xin Li, Philippe H. Gow, Qiong Wang
  • Patent number: 10951024
    Abstract: A system and method to automatically disconnect a retrofit electrical unit from an electrical system in the event of an emergency situation and maintain power to the retrofit electrical unit.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: March 16, 2021
    Assignee: ASPEN AVIONICS, INC.
    Inventors: Jeffrey Bethel, Peter Lyons
  • Patent number: 10944287
    Abstract: According to one aspect, embodiments of the invention provide a UPS system comprising an input, an output, a neutral connection, an AVR transformer, relays configured to selectively couple a primary winding of the AVR transformer to the input and the output, a bypass relay configured to selectively couple the primary winding to the neutral connection, a DC/AC inverter, and a controller configured to operate the relays, the bypass relay, and the DC/AC inverter to provide output AC power derived from at least one of input AC power and backup DC power, wherein in a backup power mode, the controller is further configured to operate the DC/AC inverter to convert the backup DC power into AC power provided to a secondary winding of the AVR transformer, to monitor the AC output power, and to identify that the bypass relay has decoupled the primary winding from the neutral connection.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 9, 2021
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Wei-Hsiang Lin
  • Patent number: 10944263
    Abstract: In an electrical distribution system for a facility served by two power sources, ground currents on neutral conductors are avoided by utilizing a common neutral conductor in distributing power from both power sources to one or more transfer switches. In at least one single cable or conduit run, either between transfer switches or between both power sources and a transfer switch, line conductors carry power from each power source to the transfer switch(es), and a common neutral conductor carries return current for both power sources. The neutral terminals of both power sources are connected together (in part via the common neutral conductor in the single cable or conduit run), and the common neutral is grounded at only one place.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: March 9, 2021
    Assignee: Koolbridge Solar, Inc.
    Inventor: Paul Wilkinson Dent
  • Patent number: 10936037
    Abstract: A multi-power rail PSU includes a first power rail coupled to first PSUs, and a second power rail coupled to second PSUs. A controller subsystem receives a request to enable the first power rail and the second power rail and, in response, enables one of the first PSUs to transmit power to the first power rail, and enables one of the second PSUs to transmit power to the second power rail. The controller subsystem then performs respective PSU mismatch checks on the first PSUs and the second PSUs, and identifies compatible first PSUs for the first power rail, and compatible second PSUs for the second power rail. The controller subsystem then enables transmission of power to the first power rail from the compatible first PSUs, and enables transmission of power to the second power rail from the compatible second PSUs.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: March 2, 2021
    Assignee: Dell Products L.P.
    Inventors: Craig Anthony Klein, John Erven Jenne
  • Patent number: 10921845
    Abstract: A real time clock and power management integrated circuit consists of a) an RTC block comprising an internal clock generator for generating a system clock signal that controls a device and b) a power management block. The power management block comprises primary and backup power source connections, a Feed Power Downconverter Component, a backup power source charger power booster/regulator component to increase or regulate voltage from the primary power source to a predetermined charger input voltage, a charge control logic component, a backup power source cut-off logic component, and a mode control logic component to enable operation of the charge control logic component and the battery cut-off logic component under predetermined conditions.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: February 16, 2021
    Assignee: CYMBET Corporation
    Inventors: Jeffrey S. Sather, Steve W. Tonkin, Jeffrey D. Mullin
  • Patent number: 10921870
    Abstract: The present disclosure provides a system and method for dynamically defining a specific input pin of a management controller (e.g., a baseboard management controller (BMC)) of a server system in response to a new device being plugged into the server system. The new device comprises one of a power supply unit (PSU), an automatic transfer switch (ATS), or a battery backup unit (BBU) of the server system. In some implementations, the PSU, the ATS, and the BBU are modularized into a plurality of ATS modules, a plurality of PSU modules, and a plurality of BBU modules, respectively. Each of the plurality of ATS modules, the plurality of PSU modules, and the plurality of BBU modules has substantially the same physical size.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: February 16, 2021
    Assignee: QUANTA COMPUTER INC.
    Inventors: Kuang-Hua Ou Yang, Shu-Chen Ni, Chin-Hsiang Chan, Wen-Kai Lee
  • Patent number: 10921384
    Abstract: The disconnection sensing circuit is provided with: the control unit having the ground connection terminal and the input terminal; the first external connection terminal capable of being connected to an external ground, the first external connection terminal being connected to the control-side ground line as a conduction path connected to the ground connection terminal; the second external connection terminal capable of being connected to an external ground, the second external connection terminal being connected to the power-side ground line as a conduction path having a greater electrifying current than the control-side ground line; and the transistor that restricts the electric power direction of the first bypass line connected between the control-side ground line and the power-side ground line to one direction, and that outputs the sensing signal corresponding to the electric power flowing through the first bypass line to the input terminal.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 16, 2021
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Takuma Gotou
  • Patent number: 10922182
    Abstract: A motor driving device includes: a rectifier circuit for rectifying an AC input voltage supplied from an AC power supply to a DC voltage; a smoothing capacitor for smoothing the rectified DC voltage; a relay that outputs a contact signal when the input voltage is input to the rectifier circuit from the AC power supply; an input voltage detector for detecting the input voltage; a capacitor voltage detector for detecting the capacitor voltage; a volatile first storage; a nonvolatile second storage; and a backup start determiner for determining whether or not to start a backup operation of transferring the information stored in the first storage to the second storage, based on at least one of the contact signal, the input voltage and the capacitor voltage.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: February 16, 2021
    Assignee: FANUC CORPORATION
    Inventors: Sou Saito, Tsutomu Shikagawa
  • Patent number: 10905300
    Abstract: A vacuum cleaner includes a fan motor configured to generate suction, an input button configured to receive an input of a user, a first power supply circuit configured to convert alternating current (AC) power supplied from an external power source and output first direct current (DC) power, a second power supply circuit configured to store electric energy upon receiving the first DC power, and output second DC power based on the stored electric energy, a driver circuit configured to drive the fan motor upon receiving at least one of the first DC power and the second DC power, a first semiconductor switching circuit configured to control the first DC power supplied to the second power supply circuit, a second semiconductor switching circuit configured to control the first DC power and the second DC power that are supplied to the driver circuit, and a microprocessor configured to output a control signal for turning on or off the first semiconductor switching circuit and the second semiconductor switching circu
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon Gu Lee, Gi Hyeong Lee, Jae Shik Jeong, Yoon Kyunh Cho, Ah Young Lee
  • Patent number: 10904086
    Abstract: A technology is described for managing device performance capabilities. An example method may include connecting a physical device electronically to a service provider environment using a computer network and identifying performance capabilities of the physical device at the service provider environment via the connection. A request may be received at the service provider environment to upgrade the performance capabilities of the physical device and an authorization may also be received at the service provider environment for the upgrade. The performance capabilities of the physical device may be upgraded by sending an upgrade instruction from the service provider environment to the physical device to unlock additional performance capabilities based on the authorization. The performance capabilities of the physical device may later be downgraded to by disabling the additional performance capabilities of the physical device.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 26, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Jinesh Varia, Aditya Bhalla, Alex Levin, Bhadri Pani
  • Patent number: 10903683
    Abstract: A maintenance bypass (MBP) system for an uninterruptible power supply (UPS) includes a first switch having at least three positions that provide different couplings of a power source, a load, a power input of a UPS and a power output of a UPS and including a first contact set configured to indicate at least one transition between positions of the at least three positions. The system further includes a second switch configured to enable transition of the first switch between at least two of the positions and including a second contact set configured to indicate actuation of the second switch. The first switch may include a rotary switch and the second switch may include a pushbutton switch.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: January 26, 2021
    Inventors: Pradeep Kumar Nandam, David Glenn Miller, Scott Jason Davis
  • Patent number: 10889203
    Abstract: A power supply system for a vehicle, the system including: a battery pack including at least two parallel strings of battery cells, each string forming a battery having a first output voltage; a switch mechanism configured to connect one of the at least two batteries to a first battery pack output terminal, wherein the first battery pack output terminal is connected to a first power consumer; and a multichannel DC/DC converter having an input terminal connected to the first battery pack output terminal, the multichannel DC/DC converter including a plurality of outputs, wherein at least one of the plurality of outputs is configured to provide a second voltage, the second voltage being lower than the first voltage, and wherein the at least one output of the multichannel DC/DC converter is connected to a second power consumer.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: January 12, 2021
    Assignee: Volvo Car Corporation
    Inventors: Axel Vanerhav, Fabian Fogelberg
  • Patent number: 10886858
    Abstract: Circuits and methods for power conversion. In some examples, a modular multi-level converter (MMC) is configured for power conversion between an alternating current (AC) bus and a direct current (DC) bus. The MMC includes submodules arranged into a phase leg for at least one phase of the AC bus. Each submodule includes an energy storage component and a switch configured for bypassing the energy storage component or connecting the energy storage component into the phase leg. The MMC includes a pre-charger circuit configured to pre-charge the energy storage components of the submodules. The pre-charger circuit is configured for providing a first DC voltage that is lower than a second DC voltage on the DC bus, and the pre-charger circuit is coupled to an end submodule of the phase leg.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: January 5, 2021
    Assignee: University of Tennessee Research Foundation
    Inventors: Shuoting Zhang, Fred Wang, Leon M. Tolbert
  • Patent number: 10886748
    Abstract: A DER (distributed energy resource) device includes a metrology module and a communications module. The metrology module monitors the output of the DER device and the communications module provides bidirectional communications across a communications network to control the DER device. The control of the DER devices may include commands to connect the DER device to the grid, to disconnect the DER device to the grid, to connect the DER device to the premises, or to adjust a power characteristic of the output of the DER device.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: January 5, 2021
    Assignee: Landis+Gyr Innovations, Inc.
    Inventors: Matt Karlgaard, Keith Torpy
  • Patent number: 10886775
    Abstract: An active multi-module switching (MMS) system provides at least Tier-III level reliability to a data center using a UPS system with only N+1 redundancy. Only one additional UPS module is provided over the total number of UPS modules required to fully power the loads. The active MMS system includes a controller, a control circuit, and a number of distribution units each having electrically operated circuit breakers and sensor components. The active MMS system operates to control the switching components on each of the UPS modules as well as to selectively connect/disconnect individual UPS modules from MMS operation. This allows for disconnection of a UPS module from the critical load bus whenever maintenance on the UPS module is required.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 5, 2021
    Assignee: Toshiba International Corporation
    Inventors: Joseph Bowman Thomas, Jesus Penalver-Gamboa
  • Patent number: 10877538
    Abstract: There is expected a technique capable of determining a power supply state with respect to an arithmetic unit according to a connection status with a power supply unit. The arithmetic unit includes a state management circuit outputting a state signal indicating whether or not supply of power from the power supply circuit is valid. The state management circuit of the arithmetic unit determines a value of the state signal based on a voltage of a second port, a voltage of a first port, and a signal indicating whether or not the power supply unit exists.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: December 29, 2020
    Assignee: OMRON Corporation
    Inventor: Hiroaki Ueda
  • Patent number: 10868438
    Abstract: A system includes a converter unit and a power distribution unit (PDU) having at least one power outlet, a first power port configured to be coupled to an AC power source and second power port coupled to the converter unit. The PDU is further configured to selectively provide power to the at least one outlet from the first and second power ports. The PDU may include a power strip with an elongate enclosure and a plurality of receptacles at a face of the enclosure, and the converter may include a rack mountable converter unit coupled to the power strip by a power cable and a communications cable. The rack mountable converter unit may include an inverter and a battery.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: December 15, 2020
    Inventors: Scott Jason Davis, Thomas Joseph Overberg, David G. Windsor, Stefan Ashley Coote
  • Patent number: 10868462
    Abstract: An electric tool includes: a housing; a motor accommodated in the housing and providing power to a working component, the motor includes a stator including an excitation winding and a rotor including an armature winding, and the excitation winding is connected in series to the armature winding; a first power input unit, capable of connecting to an external AC power source so as to provide an alternating current to the motor; a second power input unit, capable of connecting to a battery component so as to provide a direct current to the motor; and a power source control unit, controlling the motor to obtain power input by using one of the first power input unit and the second power input unit. The electric tool can adapt to an AC power source and a DC power source, and the motor has a simple structure.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: December 15, 2020
    Assignee: Positec Power Tools (Suzhou) Co., Ltd
    Inventor: Guoliang Mou
  • Patent number: 10855102
    Abstract: A method for monitoring an electric power source changeover switch, including a step of identifying all of the combinations of operating modes and availability states of the power sources, a step of associating a configuration of a state of switches with each combination, a step of watching for a change in configuration. Upon a change in configuration, a step of controlling the switches is executed in order to place the switches in a state complying with the configuration. In the absence of a change in configuration, a step monitors the compliance of the configuration with the actual state of the switches. A method further including monitoring a source changeover switch implemented in a test device, and to a source changeover switch implementing such a method.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: December 1, 2020
    Assignee: Schneider Electric Industries SAS
    Inventors: Alain Ret, Yannick Neyret, Jean-Pierre Nereau, Jean-Marie Hypolite
  • Patent number: 10855180
    Abstract: Devices and techniques for controlling voltage regulation are disclosed. A voltage regulation system may include one or more loads disposed on an integrated circuit, a DC-to-DC voltage regulation device at least partially disposed on the integrated circuit, and a second device disposed external to the integrated circuit and comprising circuitry configured to communicate with the controller of the voltage regulation device. The voltage regulation device may include one or more voltage regulation modules and a controller configured to control the one or more voltage regulation modules. The one or more voltage regulation modules may be configured to supply one or more voltage levels, respectively, to the one or more loads. The controller may be configured to disable at least one of the one or more voltage regulation modules based on a determination that the second device is not suitable for use with the voltage regulation device.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: December 1, 2020
    Assignee: Empower Semiconductor, Inc.
    Inventors: David Lidsky, Timothy Phillips, Gene Sheridan
  • Patent number: 10833528
    Abstract: An uninterruptible power supply system includes a regular uninterruptible power supply device configured to supply AC power to a load, and an auxiliary power conversion device configured to supply AC power to the load when the regular uninterruptible power supply device has a failure. The auxiliary power conversion device includes a converter and an inverter. When a DC voltage generated by the converter is higher than a lower limit voltage, the auxiliary power conversion device outputs an AC voltage having a sinusoidal wave and falling within an acceptable input voltage range of the load. When the DC voltage is lower than the lower limit voltage, the auxiliary power conversion device outputs an AC voltage having waveform distortion within an acceptable range for the load and falling within the acceptable input voltage range of the load.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: November 10, 2020
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Masaru Toyoda
  • Patent number: 10811993
    Abstract: Systems and methods for operating a power conversion system that includes a sole DC/DC converter are described. The systems and methods reduce a total number of DC/DC converters in a power system that includes an electric energy storage device and a photovoltaic array. The system and method provide for transferring electrical charge from the photovoltaic array and the electric energy storage device to an alternating current stationary electrical grid via a DC bus and an inverter.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 20, 2020
    Assignee: ESS TECH, INC.
    Inventor: Aaron Vanderzaden
  • Patent number: 10795388
    Abstract: A voltage adjustment device comprises a voltage detector and a signal emitter. The voltage detector electrically connects to an electrical device through a power rail and obtains a voltage detected value of the power rail. The signal emitter electrically connects to the voltage detector and is configured to electrically connect to a host and a power board. The signal emitter generates a power good signal and sends the power good signal to the host when the voltage detected value is larger than a baseline voltage value for the first time. After sending the power good signal, the signal emitter generates a voltage adjustment signal according to the voltage detected value and is configured to send the voltage adjustment signal to the power board for selectively adjusting a voltage provided by the power board.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: October 6, 2020
    Assignee: WIWYNN CORPORATION
    Inventors: Yi-Hao Chen, Chia-Ming Tsai
  • Patent number: 10790545
    Abstract: The invention relates to a battery (100) that works by regulating the power source (112) to provide a suitable voltage output so that the user's devices/products using the battery will have a high performance among several other advantages. The battery (100) comprises a positive terminal (102); a negative terminal (112); a power source (114); and a voltage regulation device (110). The voltage regulation device (110) is operatively connected to the positive terminal (102), the negative terminal (112) and the power source (114). The voltage regulation device (110) includes electronic components that are operatively connected to each other in order to regulate an output voltage in a programmed variable level.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: September 29, 2020
    Assignee: VOLT TECHNOLOGY LIMITED
    Inventor: Andrew James Wigney
  • Patent number: 10788802
    Abstract: Some appliances, normally supplied by a mains supply, also comprise an emergency supply by batteries able to take over from the mains supply. The batteries used by the emergency supply are generally protected by a fuse. These appliances are liable to consume greater than what could be supplied by the batteries of the emergency supply. When there is a break in the mains electrical supply, it is then preferable to limit the current consumed by the appliance in order not to damage the fuse protecting said batteries. However, the fuses are hardware modules having a reaction time of a few hundreds of milliseconds. If it is wished not to damage the fuse, it is therefore essential to reduce the current consumption of the appliance within a time less than the reaction time of the fuse. The invention relates to a system and method for instantaneously reducing the electrical consumption of an appliance in the event of a break in the mains supply.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 29, 2020
    Assignee: SAGEMCOM BROADBAND SAS
    Inventors: Jean-Philippe Negele, Anthony Reuche, Massinissa Lalam
  • Patent number: 10784712
    Abstract: A power supply unit (PSU) dynamically limits total recovery current. The PSU includes at least a power input, a power output, a historic maximum power draw memory, an update logic, and a recovery current limiting logic. Some implementations include a latest power measurement register, an hourly max power register, and a rolling max register, and controlling firmware. The update logic monitors a power level. The update logic updates the historic maximum power draw memory to match the monitored level. After a power interruption, the recovery current permitted to flow into the PSU is limited based on the historic usage. The recovery current may be limited in a constant, stepped, or ramped manner. The PSU may also provide power distribution. Multiple PSUs may be treated as a group, allowing an individual PSU to exceed its historic usage while the group's recovery currents are limited to the sum of historic usage levels.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: September 22, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Shaun L. Harris, John J. Siegler, Banha Sok
  • Patent number: 10779377
    Abstract: A lighting device having a light diffuser and a circuit with at least two lamps of different colors mounted to direct light through a part of the light diffuser, and connections for at least one rechargeable battery to power said circuit. The circuit includes a light sub-circuit to independently control delivery of power to each of said lamps so as to vary the intensity of light emitted over time to produce a continuous color changing cycle. A spike is provided for positioning said connections above a ground surface.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: September 15, 2020
    Inventor: Simon N. Richmond
  • Patent number: 10779440
    Abstract: A modular computing system for a data center includes one or more data center modules including rack-mounted computer systems. An electrical module is coupled to the data center modules and provides electrical power to computer systems in the data center modules. One or more air handling modules are coupled to the data center modules. The data center module may include two pre-fabricated portions, each portion including a row of racks of computer systems. The two computing module portions of the data center module may combine to form a computing space when coupled to one another.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: September 15, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Michael Phillip Czamara, Osvaldo P. Morales
  • Patent number: 10778124
    Abstract: A method of controlling an electric motor assembly includes receiving sensor feedback that is based at least in part on electrical properties of a variable frequency power signal provided to the electric motor assembly. The method also includes adjusting the phase angle of the variable frequency power signal provided to the electric motor assembly based at least in part on the sensor feedback. The method also includes determining an operational status of the electric motor assembly that receives the variable frequency power signal based at least in part on the sensor feedback.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: September 15, 2020
    Assignee: General Electric Company
    Inventors: Nathaniel Benedict Hawes, Stefan Grubic, Prabhakar Neti
  • Patent number: 10770895
    Abstract: A power distribution system such as a marine power distribution and propulsion system. The system includes an ac busbar and a plurality of active front end power converters. Each AFE power converter includes a first active rectifier/inverter connected to the busbar and a second active rectifier/inverter connected to an electrical load such as an electric propulsion motor. Power sources are connected to the dc link of the AFE power converters and can be operated under the control of a power management controller or power management system.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 8, 2020
    Assignee: GE Energy Power Conversion Technology Ltd.
    Inventors: Nicholas James Clarke, Stephen Paul Hudson
  • Patent number: 10761498
    Abstract: An electronic device is provided which includes a power input unit including a first power input unit and a second power input unit, a switching unit including a first switching circuit connected with the first power input unit and a second switching circuit connected with the second power input unit, and a controller configured to receive selection information for selecting a power source to supply power to a load unit included in the electronic device of a first power source and a second power source, wherein the first power source and the second power source are connected with the first power input unit and the second power input unit, respectively, and control the switching unit to connect the first power source to the load unit according to the selection information.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: September 1, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sang-Ju Kim, Jae-Deok Cha, Won-Seok Jang, In-Sung Hwang