Bridge Type Patents (Class 363/132)
  • Patent number: 11398793
    Abstract: An electric traction machine, a motor vehicle, and a method for controlling dissipated heat in the electrical power plant of the motor vehicle are described herein. The power plant is supplied with a current, where, in order to provide a predetermined amount of dissipated heat, a ratio between a field-forming and a torque-forming current deviating from an optimum ratio for a respective operating point of the power plant is prescribed. The predetermined dissipated heat is provided by a power plant embodied as a magnet-less three-phase alternator while a rotor current flowing through a rotor of the three-phase alternator is adjusted, the field-forming and the torque-forming currents being prescribed such that acoustic interference signals of the three-phase alternator are minimized by the ratio, and the rotor current is adjusted such that the predetermined dissipated heat is provided by a combination of the rotor current and the ratio minimizing the interference signals.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 26, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Daniel Engelhardt, Jovan Knezevic, Hajo Meinert, Thomas Prosser
  • Patent number: 11390378
    Abstract: The present invention relates to an actuator in a landing gear system of an aircraft, comprising: an electric drive for driving the actuator and first drive electronics for controlling the electric drive that are connected to the drive via an electric line, with second drive electronics for controlling the electric drive that are connected to the drive via an electric line, with the first drive electronics and the second drive electronics being redundant with respect to one another.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: July 19, 2022
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventors: Manfred Hinderhofer, Christian Schilling
  • Patent number: 11388796
    Abstract: Electronic circuitry for independently adjusting color temperature and brightness of an LED light fixture is disclosed utilizing two wires. According to one embodiment, a color-tunable and dimmable LED light fixture has first and second LED light strings connected in an anti-parallel arrangement.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: July 12, 2022
    Inventors: Greg Price, Gong Fei
  • Patent number: 11387746
    Abstract: A switching circuit includes a diode, a semiconductor switch, and a first bidirectional switch. The semiconductor switch is configured to conduct a first current from a second terminal to a third terminal of the semiconductor switch when a first on-state signal is sent to a first terminal of the semiconductor switch. An anode of the diode is connected to the second terminal of the semiconductor switch, and a cathode of the diode is connected to the third terminal of the semiconductor switch. The first bidirectional switch includes a first terminal, a second terminal connected to the anode of the diode, and a third terminal and is configured to conduct a second current from the second terminal to the third terminal or from the third terminal to the second terminal when a second on-state signal is sent to the first terminal of the first bidirectional switch.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 12, 2022
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Hang Dai, Thomas Merlin Jahns, Bulent Sarlioglu, Renato Amorim Torres
  • Patent number: 11381189
    Abstract: The system determines that a multiphase electric motor is in a low-speed operating range, near stall. The system determines a duty cycle for each phase of the multiphase electric motor. The duty cycle includes a nominal component and a zero-sequence component configured to balance temperature rises of power electronics devices of the motor drive. Power electronics devices can include diodes, IGBTs, or other switches or devices. The system causes each duty cycle to be applied to a corresponding switch of the corresponding phase of the multiphase electric motor to cause current flow in the corresponding phase. The system may determine duty cycles corresponding to a thermal balance between a switch and a diode of a phase and a thermal balance between a pair of like devices of different phases, and then determine which duty cycle is closer to a predetermined value.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 5, 2022
    Assignee: Rivian IP Holdings, LLC
    Inventor: Steven E. Schulz
  • Patent number: 11373491
    Abstract: An emergency lighting security system has a system control panel, a plurality of predetermined light fixtures, each light fixture in communication with a smart switch in data communication with the system control panel. A building distribution panel for distributing power to the light fixtures; Wi-Fi repeaters for boosting signal strength within an installation, and a key-fob operable by a homeowner to initiate an emergency signal to the control panel to set the smart switches into a strobe or flash mode controlling the light fixtures. Also a method of controlling an emergency lighting security system via a wireless control panel with Wi-Fi switches to set predetermined exterior and interior light fixtures into a strobe or flashing mode.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 28, 2022
    Inventors: Robert M. Stone, Christopher Walton
  • Patent number: 11362599
    Abstract: A controlling method is for a single-phase bidirectional inverter. The single-phase bidirectional inverter includes a switch and an inductor. The controlling method for the single-phase bidirectional inverter includes an extracting step, a calculating step, and an integrating step. In the extracting step, a current command is inputted to the switch and obtaining a current through the inductor. The current is piecewisely linearized to extract a magnetizing inductance and a demagnetizing inductance of the inductor. In the calculating step, a duty ratio of the switch is used to calculate a variation of the current of the magnetizing inductance and a variation of the current of the demagnetizing inductance. In the integrating step, the variation of the current of the magnetizing inductance and the variation of the current of the demagnetizing inductance are integrated to obtain another duty ratio of the switch in the next cycle.
    Type: Grant
    Filed: June 21, 2020
    Date of Patent: June 14, 2022
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Tsai-Fu Wu, Temir Sakavov, Yen-Hsiang Huang, Yun-Tsung Liu
  • Patent number: 11356015
    Abstract: Certain embodiments involve a modular medium voltage fast charger. The modular medium voltage fast charger can include: (1) a predictive power factor correction (“PFC”) controller (or predictive controller) for series-interleaved multi-cell three-level boost (“SIMCB”) converters, (2) an active neutral point clamped (“NPC”) dual active bridge (“DAB”) modulation scheme to achieve soft switching, (3) an auxiliary capacitor to reduce NPC DAB turn-off voltages, (4) a comprehensive and scalable protection circuit, and (5) a high-isolation pulse transformer with a bobbin for reducing coupling capacitance of the pulse transformer.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: June 7, 2022
    Assignee: North Carolina State University
    Inventors: Srdjan Lukic, Xinyu Liang, Chi Zhang, Srdjan Srdic
  • Patent number: 11343943
    Abstract: Systems, methods, techniques and apparatuses of power switches are disclosed. One exemplary embodiment is a power switch comprising an outer housing; a power electronics board disposed within the housing and including a semiconductor switch structured to selectively conduct a current between a first power terminal and a second power terminal; a first heat sink coupled to the power electronics board; a plurality of thermally conductive connectors; a second heat sink coupled to the plurality of thermally conductive connectors, a control electronics board structured to control the semiconductor switch, the control electronics board being located within an enclosure formed of the second heat sink, the plurality of thermally conductive connectors, and the power electronics board.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 24, 2022
    Assignee: ABB SCHWEIZ AG
    Inventors: Giovanni Salvatore, Slavo Kicin, Fabian Mohn
  • Patent number: 11342858
    Abstract: A power converter apparatus is provided with: a plurality of leg circuits, each including two switch circuits connected in series between input terminals; a transformer including a primary winding and a secondary winding, the primary winding having a first terminal and a second terminal; and at least one capacitor. The at least one capacitor is connected between the first terminal or the second terminal of the primary winding of the transformer, and a node between the two switch circuits in at least one leg circuit among the plurality of leg circuits. The first terminal of the primary winding of the transformer is connected to at least two nodes between the switch circuits in at least two first leg circuits among the plurality of leg circuits, via at least two first circuit portions having at least one of capacitances and inductances different from each other, respectively.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: May 24, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Motohiko Fujimura, Atsushi Yamamoto
  • Patent number: 11336173
    Abstract: The present disclosure relates to a power converter device including a power factor correction circuit, a resonance converter circuit, and a zero voltage switching circuit. The power factor correction circuit is coupled to the primary side rectifier circuit, and includes a first switching circuit, a first control circuit and a first output circuit. The resonance converter circuit includes a second switching circuit and a second control circuit. The second switching circuit is coupled to the first output circuit, and the second control circuit is coupled to the secondary side rectifier circuit. The zero voltage switching circuit is coupled between the first control circuit and the second control circuit. The zero voltage switching circuit is configured to obtain a switching voltage of a switch element in the second switching circuit, and output an adjustment signal to the first control circuit according to the switching voltage.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: May 17, 2022
    Assignee: Chicony Power Technology Co., Ltd.
    Inventors: Tso-Jen Peng, Mao-Song Pan, Yi-Ching Su
  • Patent number: 11336205
    Abstract: A low frequency direct drive amplifier is disclosed which can simultaneously achieve high drive voltages, high power density, high efficiency, and wide bandwidth operation is disclosed. The power circuit structure includes an input DC-DC converter and an output multi-level DC-AC inverter. The input DC-DC converter's circuit topology is commonly referred to as the phase shifted full bridge, which includes input capacitors, a Gallium Nitride (GaN) based full bridge, an isolation transformer, two rectifying diodes, and two series stacked output capacitors. The output DC-AC inverter includes two series stacked input capacitors (same as the input DC-DC converter's output capacitors), four Silicon Carbide (SiC) semiconductors, four Silicon IGBTs, and an output filter. The disclosure's features the combination of the output multi-level DC-AC inverter circuit topology paired with 1.7 kV SiC semiconductors, allowing for a high voltage direct drive design without a low frequency boost transformer.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: May 17, 2022
    Assignee: Mainstream Engineering Corporation
    Inventors: John Alex Brothers, Christopher John Recio, John Michael Van Treeck
  • Patent number: 11329591
    Abstract: A power conversion apparatus includes: an inverter unit; a first capacitor group, an positive electrode of the first capacitor group connected to an positive electrode on the DC input side of the inverter unit; a second capacitor group, a negative electrode of the second capacitor group connected to a negative electrode of the DC input side of the inverter unit; a first terminal portion connected to the positive electrode of the first capacitor group; a second terminal portion connected to a negative electrode of the first capacitor group; a third terminal portion connected to an positive electrode of the second capacitor group; and a fourth terminal portion connected to the negative electrode of the second capacitor group, wherein a distance between the first terminal portion and the third terminal portion is approximately equal to a distance between the second terminal portion and the fourth terminal portion.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: May 10, 2022
    Assignee: FANUC CORPORATION
    Inventors: Ryou Matsuda, Taku Sasaki
  • Patent number: 11329568
    Abstract: A PWM controlled multi-phase resonant voltage converter may include a plurality of primary windings powered through respective half-bridges, and as many secondary windings connected to an output terminal of the converter and magnetically coupled to the respective primary windings. The primary or secondary windings may be connected such that a real or virtual neutral point is floating.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: May 10, 2022
    Assignee: STMicroelectronics S.r.l.
    Inventors: Claudio Adragna, Giuseppe Gattavari, Paolo Mattavelli, Enrico Orietti, Giorgio Spiazzi
  • Patent number: 11323044
    Abstract: A circuit comprising a first power node for connection to a positive voltage of a DC link, a second power node for connection to a negative voltage of the DC link and a mid-point power node for connection to a mid-point voltage of the DC-link, the circuit further comprising a three-level neutral point clamped converter module and a brake resistor connection.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: May 3, 2022
    Assignee: Danfoss Power Electronics A/S
    Inventors: Leandro Della Flora, William Giewont, David Michaud, Dan Isaksson, Andreas Doktar
  • Patent number: 11303222
    Abstract: A multiphase inverter apparatus includes an insulating substrate, a plurality of half bridge circuits and a phase output lead for each half bridge circuit. The substrate includes a conductive redistribution structure on a first surface and having at least one low voltage bus and at least one high voltage bus. Each half-bridge circuit is electrically coupled between a low voltage bus and a high voltage bus and includes: a packaged low side switch; a packaged high side switch; and a phase output electrically coupled with the respective phase output lead. The packaged low side and high side switches are arranged on the first surface of the substrate. The phase output lead is arranged on and electrically coupled to the packaged low side and high side switches such that the low side and high side switches are arranged vertically between the phase output lead and the first surface of the substrate.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 12, 2022
    Assignee: Infineon Technologies Austria AG
    Inventors: Tomasz Naeve, Elvir Kahrimanovic, Petteri Palm
  • Patent number: 11290000
    Abstract: A switch module assembly including a switch module including a bus bar system having a positive bus bar and a negative bus bar, and at least one snubber capacitor fastened to the switch module, each of the at least one snubber capacitor having a body part, a positive terminal connected to the positive bus bar, and a negative terminal connected to the negative bus bar. The switch module assembly includes a capacitor support member adapted to reduce vibration of the body part of the at least one snubber capacitor relative to the switch module, the capacitor support member is made of flexible material, and is in contact with the body part of the at least one snubber capacitor and the switch module.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: March 29, 2022
    Assignee: ABB Schweiz AG
    Inventors: Toni Nygren, Asko Mielonen, Hermanni Tervo
  • Patent number: 11281616
    Abstract: A device includes a driver circuit to send data bits onto a data bus that is partitioned into a DC component and an AC component. The driver circuit is to, for some data bits, retrieve a value of a DC power ratio of the data bus. The driver circuit is further to determine, using the value of the DC power ratio, a first value for a first portion of total power to be dissipated over the DC component to transmit the data bits, and determine, using one minus the value of the DC power ratio, a second value for a second portion of total power to be dissipated over the AC component to transmit the data bits. The driver circuit is to determine whether to send the data bits onto the data bus using data bus inversion dependent on a combination of the first value and the second value.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: March 22, 2022
    Assignee: Intel Corporation
    Inventors: Melin Dadual, Vivek Joy Kozhikkottu, Shankar Ganesh Ramasubramanian
  • Patent number: 11283352
    Abstract: The present invention discloses a modular multilevel dynamic switching DC-DC transformer, which consists of N DC-DC sub-modules connected in series. Each of the DC-DC sub-modules is of a symmetrical structure capable of realizing bidirectional power flow, which consists of two half-bridge sub-modules and isolating switches S1, S2 between capacitors C1, C2 of the two half-bridge sub-modules. The capacitors C1, C2 are disposed in parallel between the half-bridge sub-modules and the isolating switches. Assuming that the power flows in the primary side of the DC-DC transformer and flows out from the secondary side; the half-bridge sub-module located on the primary side of the DC-DC transformer is referred to as a primary-side sub-module; and, the half-bridge sub-module located on the secondary side of the DC-DC transformer is referred to as a secondary-side sub-modules.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 22, 2022
    Assignee: Tianjin University
    Inventors: Bin Li, Weixin Zhang
  • Patent number: 11283364
    Abstract: A power supply according to the present disclosure includes: a step-down circuit which has at least one pair of positive/negative step-down switching elements; at least one pair of positive/negative inductors to which voltage is applied via the step-down switching element, and one pair of positive/negative output capacitors which are connected in series and charged by electrical current passing through the inductor, and steps down input voltage and then outputs; an inverse-conversion circuit which has a plurality of inverse-conversion switching elements, and inverse-converts output voltage of the step-down circuit into alternating current; and a control circuit which controls switching of the plurality of step-down switching elements so that the output voltage of the step-down circuit becomes a desired voltage.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: March 22, 2022
    Assignee: FANUC CORPORATION
    Inventors: Yoshikiyo Tanabe, Satoshi Matsumoto
  • Patent number: 11228251
    Abstract: The present disclosure discloses a hybrid five-level bidirectional DC/DC converter and a voltage match modulation method thereof. The converter includes a first input filter capacitor Cinp and a second input filter capacitor Cinn, an output filter capacitor Co, a DC voltage source, a primary-side hybrid five-level unit, a primary-side two-level half bridge, a secondary-side single-phase full bridge H2, a high-frequency isolation transformer M1, a high-frequency inductor Ls, and a controller. A positive pole of a DC bus of the primary-side hybrid five-level unit is coupled to a positive pole of the corresponding DC voltage source and to a positive pole of the input filter capacitor Cinp respectively. A negative pole of the DC bus of the primary-side hybrid five-level unit is coupled to a negative pole of the corresponding DC voltage source and to a negative pole of the input filter capacitor Cinn respectively.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: January 18, 2022
    Assignee: HANGZHOU DIANZI UNIVERSITY
    Inventors: Lijun Hang, Anping Tong, Shenglun Chen, Chi Shao, Yuanbin He, Lei Shen, Pingliang Zeng
  • Patent number: 11211881
    Abstract: A power conversion device achieves size reduction and reliability by reducing the number of components of the system. The power conversion device has a semiconductor module of a half-bridge configuration in which two semiconductor elements are arranged in series. The semiconductor module has a cuboidal shape and has, along a longitudinal direction thereof, a positive pole terminal, a negative pole terminal, and terminals for inputting or outputting alternating current or for forming a single phase of the power conversion device. In the vertical direction corresponding to a widthwise direction of the cuboid, a plurality of the semiconductor modules are arranged vertically, forming a plurality of phases of the power conversion device. The semiconductor modules of the plurality of phases are installed in contact with a cooling unit, and one or more capacitors are disposed so as to face the cooling unit across the semiconductor modules of the plurality of phases.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: December 28, 2021
    Assignee: HITACHI, LTD.
    Inventors: Keisuke Horiuchi, Kiyoshi Nakata, Noriyoshi Urushiwara, Shuichi Terakado, Kiyoshi Terasawa
  • Patent number: 11183852
    Abstract: A control unit repeats the series of processing of comparing a first phase representing a phase of the first reference sine wave and being a phase included in the first synchronization signal, with a second phase that is the phase of the second reference sine wave when the first synchronization signal is received when the communication unit receives the first synchronization signal from the other inverter generator, changing a phase change amount per unit time of the second reference sine wave in accordance with the comparison result, continuing to update the phase of the second reference sine wave so that the phase of the second reference sine wave changes with a phase change amount per unit time after the change with reference to the first phase until the next first synchronizing signal is received from the other inverter generator.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 23, 2021
    Assignee: SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Kazuo Yamashita, Yasukazu Yamaguchi
  • Patent number: 11165331
    Abstract: A dual active bridge system can include a plurality of dual active bridges (DABs). Each DAB can have a first side connected in parallel and a second side connected in parallel such that each of the plurality of DABs share a common first side capacitor and a common second side capacitor. The plurality of DABs can be configured to be operated to reduce or eliminate ripple current at the first side capacitor and/or second side capacitor.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 2, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Michael J. Hanson
  • Patent number: 11159097
    Abstract: A new class of DC-AC inverter consists of a buck or two buck converters and two or four low frequency switches, and it achieves ultra-high efficiency, reactive power flow capability, small size and low cost in grid-connected applications.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: October 26, 2021
    Assignee: Redx Technology Australia Pty Ltd
    Inventor: Xue Jian Chen
  • Patent number: 11152865
    Abstract: The instant disclosure concerns a power converter including: a primary stage (110) including at least one first cut-off switch (S11, S12, S13, S14); a control circuit (112) capable of applying a first control signal to said at least ore first switch; a secondary stage (130) including at least one second cut-off switch (S21, S22, S23, S24); a control circuit (132) capable of applying a second control signal to said at least one second switch; a power transmission stage (120) coupling the primary stage (110) to the secondary stage (130), wherein the control circuit (132) of the secondary stage is electrically isolated from the control circuit (112) of the primary stage.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: October 19, 2021
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Dominique Bergogne, Pierre Perichon, Léo Sterna
  • Patent number: 11139238
    Abstract: A three-dimensional (3-D) inductor is incorporated in a substrate. The 3-D inductor has a first connector plate, a second connector plate, a third connector plate, a first terminal plate, and a second terminal plate. Four multi-via walls connect the various plates, wherein each multi-via wall includes a first group of at least three individual via columns, each of which connects two plates together.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: October 5, 2021
    Assignee: Qorvo US, Inc.
    Inventors: Dirk Robert Walter Leipold, George Maxim, Baker Scott, Toshiaki Moriuchi
  • Patent number: 11139735
    Abstract: A drive circuit for a switch capacitor converter having first, second, third, and fourth power switches connected in series, can include: first, second, third, and fourth drivers configured to respectively drive the first, second, third power, and fourth power switches according to control signals; a bootstrap power supply circuit comprising a bootstrap capacitor configured to supply power to the first, second, and third drivers in a time-sharing manner; and a power supply configured to supply power to the fourth driver and charge the bootstrap capacitor, where the fourth power switch is grounded.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: October 5, 2021
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventor: Fuhua Deng
  • Patent number: 11140751
    Abstract: A control circuit for an induction heating device includes a D.C. power supply, referenced to a ground connection and configured to supply power to the induction heating device. A switching device is configured to be selectively activated to control the induction heating device. The switching device is connected on one end to the ground connection. A resonant load is disposed between the D.C. power supply and the switching device, the resonant load including a capacitor and an inductor connected in a parallel configuration. At least one rectifying device is disposed in series with the resonant load and the switching device. The switching device is configured to control current from the D.C. power supply through the resonant load.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: October 5, 2021
    Assignee: Whirlpool Corporation
    Inventors: Salvatore Baldo, Andrea Gallivanoni, Davide Parachini, Cristiano Vito Pastore
  • Patent number: 11139754
    Abstract: An inverter circuit for realizing high-efficiency control of single-phase power of a single-phase three-wire power supply includes a bridge inverter circuit connected to an output end of a DC power supply, a freewheeling circuit connected to an output end of the bridge inverter circuit for providing freewheeling during switching of the bridge inverter circuit, and a control unit connected with the bridge inverter circuit and the freewheeling circuit. When the switching units in the high-frequency operating state are switched to an off state, the freewheeling circuit is controlled to operate continuously to output power to the U-phase line or the W-phase line, so that the switching units only participate in high-frequency operations in nearly half of the whole mains cycle, thereby switching loss and conduction loss of the switching units Q1 to Q6 can be reduced by nearly half, and the efficiency of the whole inverter circuit is greatly improved.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: October 5, 2021
    Assignee: Solax Power Network Technology (Zhejiang) Co., LTD.
    Inventors: Xinmiao Shi, Huawei Guo, Xiaoyu Sui, Liangliang Cheng, Chaohou Liu, Weixu Chen
  • Patent number: 11139760
    Abstract: A motor drive apparatus includes: a DC-side capacitor charged with direct current power; an inverter unit comprising multiple top switches and bottom switches, performing a switching operation so as to convert power stored in the DC-side capacitor into alternating current power, and outputting the converted alternating current power to a motor; a shunt resistor for detecting a current flowing through the DC-side capacitor; and a controller for controlling the inverter unit to perform dynamic braking for stopping the motor. Before the dynamic braking is performed, the controller controls the inverter unit to gradually increase a phase current flowing through the bottom switches.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 5, 2021
    Assignee: LG Electronics Inc.
    Inventors: Hansu Jung, Dongwook Kim, Minho Jang
  • Patent number: 11133749
    Abstract: A power module for a converter of electrical magnitudes having an electronic board on which a first electrical circuit is fashioned which defines a positive pole of a direct magnitude, a second electrical circuit is fashioned which defines a negative pole of a direct magnitude, and a third electrical circuit is fashioned which conducts an alternating magnitude. There is one or more first and second electronic switching devices arranged between the first and second electrical circuit, and the third electrical circuit so as to realize the conversion. The first and second electrical circuit are, at least for respective coupling portions, arranged in proximity to the electronic switching devices, neared and superposed at a same face of the board so that a capacitive and/or inductive coupling between the two circuits is realized.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 28, 2021
    Assignee: Dana TM4 Italia S.r.l.
    Inventor: Adolfo Pace
  • Patent number: 11128222
    Abstract: A reactor has one end connected to a neutral point of a transformer and the other end connected to a primary-side power supply. The transformer has almost no effective flux linkage for zero-phase current and has a phase difference between the primary side and the secondary side. A first bridge circuit and a second bridge circuit are connected to both ends of the transformer, and electric power of the primary-side power supply is controlled by the duty ratio of the first bridge circuit. The switching pattern of the second bridge circuit is phase-shifted in the leading direction and the lagging direction with reference to the switching pattern of the first bridge circuit, thereby achieving control such that soft switching operation can be performed even when the voltage ratio between the primary-side power supply and the secondary-side power supply fluctuates and the amount of transmission power is reduced.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 21, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuki Itogawa, Takeshi Amimoto
  • Patent number: 11108333
    Abstract: A system includes a DC-DC power converter including a first pair of input/output lines for connecting to a first device for supplying power to or drawing power from the first device, and a second pair of input output lines for supplying power to or drawing from a second device. The system includes at least one ultra-capacitor connected across the first pair of input/output lines.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: August 31, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Frank Z. Feng, Christopher J. Courtney
  • Patent number: 11102849
    Abstract: A cooking device includes a light unit and an insulation unit configured to electrically insulate the light unit. The insulation unit includes a first insulation element and a second insulation element, with the light unit being at least partially arranged between the first insulation element and the second insulation element.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: August 24, 2021
    Assignee: BSH Hausgeräte GmbH
    Inventors: Jesús Ceamanos Gaya, Patricia Gomez Bachiller, Pablo Jesus Hernandez Blasco, Henry Mauricio Mantilla Chacón, Damaso Martin Gomez, Esther Ondiviela Serrano, Marta Osta Lombardo, Jesús Ricardo Ruiz Gracia
  • Patent number: 11088615
    Abstract: An apparatus includes a string of capacitors including at least two capacitors coupled in series and a switching circuit including a first port having first and second terminals connected to a first node and a second end node, respectively, of the string of capacitors, and a second port configured to be coupled to an energy storage device. The switching circuit is configured to selectively connect first and second terminals of the second port to a first end node, a second end node, and at least one interconnection node of the siring of capacitors. The apparatus also includes at least one inductor configured to be coupled in series with the second port of the switching circuit and the energy storage device and a charging switch configured to directly connect the first terminal of the second port to the second terminal of the second port.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: August 10, 2021
    Inventors: James Andrew McBryde, Swanand Juvekar
  • Patent number: 11088532
    Abstract: In a control device, control circuit units are connected to separate circuit power sources and to separate grounds. Ground monitor circuits respectively have a first resistor with one end connected to a voltage source, a second resistor with one end connected to an input terminal of a corresponding control circuit unit, and a capacitor. Among the one end of the first resistor, an other end of the first resistor, and the other end of the second resistor, at least one is connected to the subject system, and at least one is connected to an other system, and the control circuit unit monitors a ground abnormality of the other system based on a terminal voltage of the input terminal to which the second resistor is connected.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: August 10, 2021
    Assignee: DENSO CORPORATION
    Inventors: Kouichi Nakamura, Hideki Kabune, Atsuko Oka
  • Patent number: 11066060
    Abstract: This disclosure describes a control circuit to manage the energy flow for an integrated motor generator (IMG), such as an integrated starter generator (ISG) system. The circuit regulates the output voltage of the IMG when the IMG operates in generator mode. The circuit includes an additional switch for each phase connected in anti-series with the half-bridge circuit for the phase, e.g., the drain of the additional switch connects to the drain of the high-side switch. When the ISG is in generator mode, the additional switches are controlled, e.g., to charge the battery at a constant voltage and current throughout the speed range of the ISG (i.e. high rpm and low rpm). In generator mode, the high-side switches may be turned off, which configures the high-side switches to act as a diode and block battery discharge for low rpm operation when the phase voltages are lower.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: July 20, 2021
    Assignee: Infineon Technologies AG
    Inventor: Ramdas Rangnath Ugale
  • Patent number: 11070138
    Abstract: Each one of the secondary converters has a corresponding transformer having a primary winding associated with a primary alternating current (AC) signal and a secondary winding associated with a secondary alternating current (AC) signal. A secondary controller provides secondary control signals to the secondary semiconductor switches of the secondary converters with one or more time-synchronized, target phase offsets with respect to an observed phase of the alternating current signal (e.g., primary alternating current signal or the secondary alternating current signal) to provide the target phase offset (or targeted phase offsets) commensurate with or sufficient to support a required electrical energy transfer from the primary controller to the corresponding secondary controller (or secondary controllers).
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: July 20, 2021
    Assignee: Deere & Company
    Inventors: Sumit Dutta, Long Wu, Shuvam Gupta, David M. Loken, Eric R. Linn
  • Patent number: 11071240
    Abstract: A power converting apparatus includes: a capacitor including a plurality of cells, with a number and arrangement of the cells being determined according to characteristics of a motor; power converters separately disposed on opposite sides of the capacitor; a first cooler including a plurality of cooling tubes through which cooling water flows, located between the capacitor and the power converters, and cooling the capacitor and the power converters by being brought into surface contact with the capacitor and the power converters, with a length of any one of the plurality of the cooling tubes being determined according to the characteristics of the motor; and a housing in which the capacitor, the power converters, and the first cooler are assembled.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 20, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yun Ho Kim
  • Patent number: 11070026
    Abstract: A resonant H-bridge laser driver circuit topology is described that can achieve high current levels at narrow pulse widths while using smaller transistor sizes. The resonant H-bridge topology can utilize parasitic inductors in conjunction with an external capacitor to create a resonant circuit in parallel with the load.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: July 20, 2021
    Assignee: Analog Devices International Unlimited Company
    Inventor: Ercan Kaymaksut
  • Patent number: 11070136
    Abstract: Each one of the secondary converters has a corresponding transformer having a primary winding associated with a primary alternating current (AC) signal and a secondary winding associated with a secondary alternating current (AC) signal. A secondary controller provides secondary control signals to the secondary semiconductor switches of the secondary converters with one or more time-synchronized, target phase offsets with respect to an observed phase of the alternating current signal (e.g., primary alternating current signal or the secondary alternating current signal) to provide the target phase offset (or targeted phase offsets) commensurate with or sufficient to support a required electrical energy transfer from the primary controller to the corresponding secondary controller (or secondary controllers).
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: July 20, 2021
    Assignee: Deere & Company
    Inventors: Sumit Dutta, Long Wu, Shuvam Gupta, David M. Loken, Eric R. Linn
  • Patent number: 11063528
    Abstract: A multi-level inverter having at least two banks, each bank containing a plurality of low voltage MOSFET transistors. A processor configured to switch the plurality of low voltage MOSFET transistors in each bank to switch at multiple times during each cycle.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 13, 2021
    Assignee: Solaredge Technologies Ltd.
    Inventor: Ilan Yoscovich
  • Patent number: 11038500
    Abstract: A gate resistance adjustment device has a waveform input unit that inputs waveforms of a drain voltage or a collector voltage and a drain current or a collector current at least one of during a switching device is turned on and during the switching device is turned off, an extraction unit that extracts time required for at least one of turning on or off the switching device and a steady-state drain current or a steady-state collector current of the switching device based on the waveforms input by the waveform input unit, a calculator that calculates a gate resistance of the switching device based on the time and the steady-state drain current or the steady-state collector current that are extracted by the extraction unit, and a setting unit that sets a gate resistance calculated by the calculator in the switching device.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 15, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuto Takao, Yusuke Hayashi
  • Patent number: 11038434
    Abstract: A modular multilevel converter and a power electronic transformer is provided. The modular multilevel converter includes: a low-frequency AC to DC conversion module, comprising three branch circuits connected in parallel between output ends, each branch circuit being formed of multiple IGBT half-bridge circuits connected in series, and an electric coupling point of two adjacent IGBT half-bridge circuits in a middle position of the branch circuit being connected to a voltage input end Vin; a DC to high-frequency AC conversion module, connected between the output ends, the DC to high-frequency AC conversion module being formed of multiple IGBT half-bridge circuits connected in series, the DC to high-frequency AC conversion module having multiple sets of output ends. The MMC and power electronic transformer includes a smaller volume, lower cost and better stability in use.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: June 15, 2021
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Lei Shi, Ji Long Yao, Yan Feng Zhao
  • Patent number: 11031862
    Abstract: Systems and methods to reduce magnetic flux in a switched mode power supply are disclosed. An example welding-type power supply includes a switched mode power supply, comprising: a transformer configured to transform an input voltage to a welding-type voltage; a capacitor in series with a primary winding of the transformer; switches configured to control a voltage applied to a series combination of the primary winding of the transformer and the capacitor; a comparator coupled to the transformer and configured to compare the welding-type output voltage to a threshold voltage; and a flux accumulator to determine a net flux in the transformer based on the voltage applied to the series combination of the primary winding of the transformer and the capacitor.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: June 8, 2021
    Assignee: Illinois Tool Works Inc.
    Inventors: Alan Adam Manthe, Maxwell Bode Brock
  • Patent number: 11018117
    Abstract: A half-bridge module includes a substrate with a base metallization layer divided into a first DC conducting area, a second DC conducting area and an AC conducting area; at least one first power semiconductor switch chip bonded to the first DC conducting area and electrically interconnected with the AC conducting area; at least one second power semiconductor switch chip bonded to the AC conducting area and electrically interconnected with the second DC conducting area; and a coaxial terminal arrangement including at least one inner DC terminal. The at least first outer DC terminal and the at least one second outer DC terminal protrude from the module and are arranged in a row, such that the at least one inner DC terminal is coaxially arranged between the at least one first outer DC terminal and the at least one second outer DC terminal.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: May 25, 2021
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Fabian Mohn, Felix Traub, Jürgen Schuderer
  • Patent number: 11018528
    Abstract: Provided is a power conversion device by which an inverter MOS transistors included in an inverter can be prevented from short-circuiting. It has a DC/DC converter unit converting a voltage of DC power to be inputted, a transformation unit transforming the DC power converted by the DC/DC converter unit, an inverter unit converting the DC power transformed by the transformation unit to AC power, a control unit driving/controlling the inverter unit, a wireless power reception unit receiving power fed by wireless power feed to supply it to the control unit, a wireless power transmission unit transmitting power to the wireless power reception unit, and a power supply unit supplying power to the wireless power transmission unit.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: May 25, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yoshikazu Sugiyama, Katsuei Ichikawa, Yasuaki Norimatsu
  • Patent number: 11018592
    Abstract: Flyback converters and corresponding methods are provided. In an implementation, an on-time of a low-side switch of the flyback converter is kept at half a resonance period of a resonance defined by a leakage inductance of a transformer of the flyback converter and a capacitance value of a capacitor coupled to a primary winding of the transformer. Other methods, controllers and flyback converters are also provided.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: May 25, 2021
    Assignee: Infineon Technologies Austria AG
    Inventors: Pierrick Ausseresse, Alfredo Medina-Garcia, Joerg Peter Oehmen
  • Patent number: 10998812
    Abstract: A detection error occurs due to ripple when a current transformer detects zero cross of current. Provided is a detection device for detecting zero cross of output current output from switching circuit including a first switching element and a second switching element connected in series, and the detection device has: an acquisition unit which acquires an observation value that is based on gate current or an observation value based on gate voltage of at least one switching element of the first switching element and the second switching element, during Miller period in which Miller capacitance between a drain and a gate is charged; and a detection unit which detects zero cross of output current flowing between (i) output terminal between first switching element and second switching element and (ii) a load connect to output terminal, based on observation value during Miller period.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 4, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Masahiro Sasaki