公开(公告)号：US12123900B2

公开(公告)日：2024-10-22

申请号：US17443998

申请日：2021-07-29

申请人： KABUSHIKI KAISHA YASKAWA DENKI

发明人： Kentaro Inomata ,  Noor Aamir Baloch ,  Tokuma Nakamichi ,  Hengbin Rui

IPC分类号： G01R21/06 ,  G01K7/22 ,  G01K7/42 ,  G01K13/00 ,  G01R21/14 ,  H02P27/06 ,  H02P27/08 ,  H02P29/68 ,  G05F3/02 ,  H02M1/00 ,  H02M1/32 ,  H02M5/293 ,  H02M5/458 ,  H02M7/00 ,  H02M7/5387 ,  H02P21/22

CPC分类号： G01R21/14 ,  G01K7/22 ,  G01K7/427 ,  G01K13/00 ,  G01R21/06 ,  H02P27/06 ,  H02P27/08 ,  H02P29/68 ,  G05F3/02 ,  H02M1/00 ,  H02M1/327 ,  H02M5/293 ,  H02M5/458 ,  H02M7/003 ,  H02M7/53871 ,  H02P21/22

摘要： A power conversion device includes a power conversion circuit including a temperature sensor configured to detect a temperature at a sensor position and a switch configured to switch a connection on and off at a switch position separated from the sensor position; a loss calculation processing circuitry configured to calculate a power loss in the switch; a loss correction processing circuitry configured to correct a calculation result of the power loss on the basis of a detection result of the temperature at the sensor position; a temperature correction processing circuitry configured to correct the detection result of the temperature on the basis of the calculation result of the power loss; and a temperature estimation processing circuitry configured to estimate a temperature at the switch position on the basis of a corrected calculation result of the power loss and a corrected detection result of the temperature.

公开(公告)号：US20240348081A1

公开(公告)日：2024-10-17

申请号：US18616897

申请日：2024-03-26

申请人： ZHEJIANG HANMINGBO NEW ENERGY CO., LTD.

发明人： Zhengmao Zhu

IPC分类号： H02J7/02 ,  B60L50/51 ,  B60L50/60 ,  H02J7/00 ,  H02M7/219 ,  H02M7/5387

CPC分类号： H02J7/02 ,  B60L50/51 ,  B60L50/60 ,  H02J7/0063 ,  H02M7/219 ,  H02M7/5387 ,  B60L2210/14 ,  B60L2210/30 ,  B60L2210/40

摘要： The present teaching relates to method and system for charging a rechargeable battery deployed in an electric apparatus. The system resides in the electric apparatus. The system comprises a motor, an inverter, an output rectifier, a configurator, and a controller. The motor comprises a stator having a plurality of stator teeth and a plurality of stator windings wounded on the plurality of stator teeth. The inverter comprises a plurality of power switch devices. The configurator has contactors coupled with the plurality of stator windings and the plurality of power switch devices. The controller controls the plurality of power switch devices and the plurality of contactors, configuring the system to operate in one of a traction mode and a charging mode, where in the charging mode a dual active bridge is created which can receive power from an external power supply or distribute power to the external power supply.

公开(公告)号：US20240343146A1

公开(公告)日：2024-10-17

申请号：US18749908

申请日：2024-06-21

申请人： BYD COMPANY LIMITED

发明人： Bingjian HUANG ,  Hao LV ,  Axi QI ,  Zhifei YANG

IPC分类号： B60L53/53 ,  B60L15/32 ,  B60L53/18 ,  B60L53/20 ,  H02J7/00 ,  H02M7/5387 ,  H02P27/06

CPC分类号： B60L53/53 ,  B60L15/32 ,  B60L53/18 ,  B60L53/20 ,  H02J7/007 ,  H02M7/5387 ,  H02P27/06 ,  H02J2207/20 ,  H02P2201/11

摘要： The present disclosure relates to the technical field of vehicles, and provides a discharging vehicle and a vehicle charging system. The discharging vehicle includes a discharging control device, a first power battery, a motor, and a motor control circuit. A first electrode and a second electrode of the first power battery are respectively connected to a first input terminal and a second input terminal of the motor control circuit. The discharging control device realizes, by using the motor control circuit, DC step-down charging of the second power battery by the first power battery.

公开(公告)号：US12119759B2

公开(公告)日：2024-10-15

申请号：US18105069

申请日：2023-02-02

申请人： Novocure GmbH

发明人： Yoram Wasserman

IPC分类号： H02M7/5387 ,  A61N1/32 ,  A61N1/40 ,  G06F1/02

CPC分类号： H02M7/53871 ,  A61N1/326 ,  A61N1/40 ,  G06F1/022 ,  H02M7/53878

摘要： This application describes a variety of approaches for generating high voltage sinusoidal signals whose output voltage can be adjusted rapidly, without introducing high-frequency artifacts on the output. When these approaches are used, stronger electric fields can be applied to the tumor for a higher percentage of time, which can increase the efficacy of TTFields therapy. In some embodiments, this is accomplished by preventing adjustments to a DC power source during times when the output of that DC power source is powering the output signal. In some embodiments, this is accomplished by synchronizing the operation of an AC voltage generator and an electronic switch that is connected to the output of the AC voltage generator.

公开(公告)号：US20240333176A1

公开(公告)日：2024-10-03

申请号：US18191934

申请日：2023-03-29

申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

发明人： Muhammad KHALID ,  Mohammad ALI

IPC分类号： H02M7/5387 ,  H02M7/483

CPC分类号： H02M7/53871 ,  H02M7/4833

摘要： An inverter topology circuit that includes a direct current source; a first capacitor; a second capacitor, and a number of switches (a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a seventh switch, an eighth switch, a ninth switch, a tenth switch, and an eleventh switch). A first side of the first switch and a first side of the third switch are connected to a first side of the direct current source. A first side of the second switch and a first side of the fourth switch are connected to a second side of the direct current source. The first capacitor and the second capacitor are connected in series and are connected in parallel with the direct current source.

公开(公告)号：US12107487B2

公开(公告)日：2024-10-01

申请号：US18011850

申请日：2020-08-04

申请人： Mitsubishi Electric Corporation

发明人： Kenji Fujiwara ,  Tetsuya Kojima

IPC分类号： H02M7/5387 ,  H02M1/32 ,  H02M7/49

CPC分类号： H02M1/325 ,  H02M7/49 ,  H02M7/53871 ,  H02M7/53873

摘要： Provided is a gradationally controlled inverter formed by series-connection between: a main inverter circuitry which has main inverter arms for outputting AC voltages for respective phases, and to which a voltage of a DC source is applied through a DC busbar; and a sub-inverter circuitry having three single-phase sub-inverters. Each of short-circuit switches is connected between an input terminal and an output terminal of a corresponding one of the sub-inverters. At the time of a failure of the sub-inverter, a bypass for current is formed for only the failure phase by causing short-circuiting at the short-circuit switch connected to the sub-inverter, and only the main inverter arm for the failure phase is operated as a three-level inverter.

公开(公告)号：US12100943B2

公开(公告)日：2024-09-24

申请号：US17830179

申请日：2022-06-01

申请人： Caterpillar Inc.

发明人： Jesse R. Gerdes ,  Jackson Wai ,  Seok-hee Han

IPC分类号： H02H3/08 ,  H02M1/00 ,  H02M1/32 ,  H02M7/5387 ,  H02P29/024

CPC分类号： H02H3/083 ,  H02M1/0009 ,  H02M1/32 ,  H02M7/53871 ,  H02P29/027

摘要： An apparatus can include an inverter to provide an output N-phase alternating-current to an external component. When N equals two, a phase of the N phases can include an upper gate and a lower gate. The apparatus can also include a current detector configured to detect a phase current magnitude of the output alternating current. The apparatus can also include a controller coupled to the current detector and to the inverter. The controller can generate a gate command for controlling a gate of the inverter. The controller can also determine a value for a current threshold less than a shutoff current threshold for the external component. The controller can provide a protection command to turn off the upper gate of a corresponding phase of the inverter responsive to detecting that the phase current magnitude is greater than the current threshold.

公开(公告)号：US20240305218A1

公开(公告)日：2024-09-12

申请号：US18592609

申请日：2024-03-01

申请人： Huawei Digital Power Technologies Co., Ltd.

发明人： Dong CHEN ,  Lei SHI ,  Yunfeng LIU

IPC分类号： H02M7/5387 ,  H02J9/06 ,  H02M1/12 ,  H02M7/483

CPC分类号： H02M7/53871 ,  H02J9/062 ,  H02M1/126 ,  H02M7/483

摘要： An inverter and an inverter control method. The inverter includes an inverter system and a controller. The inverter system includes an inverter circuit, positive and negative direct current buses, a bus capacitor, and a balancing circuit. The inverter is configured to: when a user connects to an unbalanced load, control the balancing circuit based on different magnitudes of voltage fluctuation generated by the unbalanced load for the bus capacitor, to implement a function of jointly sharing current fluctuation by the bus capacitor and the balancing circuit, and reduce design costs of the bus capacitor and the balancing circuit.

公开(公告)号：US12088210B2

公开(公告)日：2024-09-10

申请号：US17842459

申请日：2022-06-16

申请人： Enphase Energy, Inc.

发明人： Michael J. Harrison

IPC分类号： H01L29/205 ,  H02M5/293 ,  H02M7/48 ,  H02M7/5387 ,  H01L29/20 ,  H01L29/778

CPC分类号： H02M5/293 ,  H02M7/4815 ,  H02M7/5387 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/7786

摘要： A switched mode power converter is provided herein and comprises a cycloconverter comprising a plurality of switches, wherein each switch of the plurality of switches is a native four quadrant bi-directional switch with a common drift region configured to allow current flow in a first direction from a first source terminal to second source terminal and in a second direction from the second source terminal to the first direction.

公开(公告)号：US20240291379A1

公开(公告)日：2024-08-29

申请号：US18572760

申请日：2022-05-05

申请人： Robert Bosch GmbH

发明人： Yashomani Yashodhan Kolhatkar ,  Peter Sinn

IPC分类号： H02M1/32 ,  H02M1/088 ,  H02M7/5387

CPC分类号： H02M1/32 ,  H02M1/088 ,  H02M7/53871

摘要： The invention relates to a method for operating an electric drive apparatus (1), wherein: the drive apparatus (1) comprises at least one electric machine (2) and power electronics (7) assigned to the machine (2); the power electronics (7) comprise a DC link capacitor (8) and at least one half bridge (10), which has at least a first semiconductor switch (13B) and a second semiconductor switch (12B); at least the first semiconductor switch (13B) is assigned a DESAT protection circuit (15), a DESAT terminal (21) of the DESAT protection circuit (15) being electrically connected to an anode (19) of the first semiconductor switch (13B); when a discharging specification is present, a discharging mode for discharging the DC link capacitor (8) is set; and, in the discharging mode, the first semiconductor switch (13B) is conductingly switched and the second semiconductor switch (12B) is alternately conductingly switched and nonconductingly switched. According to the invention, in the discharging mode the DESAT terminal (21) is electrically connected to a cathode (16) of the first semiconductor switch (13B) in order to inhibit triggering of the DESAT protection circuit (15).