公开(公告)号：US12126274B2

公开(公告)日：2024-10-22

申请号：US17290489

申请日：2019-08-23

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yusuke Kinoshita ,  Yasuhiro Yamada ,  Takashi Ichiryu ,  Masanori Nomura ,  Hidetoshi Ishida

IPC: H02M7/483 ,  H01L29/778 ,  H02M1/08

CPC classification number: H02M7/483 ,  H01L29/7786 ,  H02M1/08

Abstract: A GaN layer is formed over the substrate. An AlGaN layer is formed on the GaN layer. A first source electrode, a first gate electrode, a second gate electrode, and a second source electrode are formed on or over the AlGaN layer. A first p-type Alx1Ga1-x1N layer where 0≤x1

公开(公告)号：US12126255B2

公开(公告)日：2024-10-22

申请号：US17638949

申请日：2019-08-27

Applicant: Siemens Energy Global GmbH & Co. KG

Inventor： Felix Kammerer ,  Sebastian Semmler

IPC: H02M1/36 ,  H02M1/08 ,  H02M7/483 ,  H02M7/5387

CPC classification number: H02M1/36 ,  H02M1/08 ,  H02M7/4835 ,  H02M7/53871 ,  H02M7/483

Abstract: A method for precharging half bridge modules and full bridge modules of a modular multilevel converter includes providing the modular multilevel converter with at least one phase module branch with half bridge modules and full bridge modules connected electrically in a series circuit, and each of the half bridge modules and full bridge modules having at least first and second module connections, two electronic switching elements and an electrical energy store. In a first charging phase after connecting the multilevel converter to an energy supply network with the electronic switching elements of the half bridge modules and the full bridge modules not actuated, the energy stores of the half bridge modules and the full bridge modules are charged in an uncontrolled manner. In a second charging phase, the electronic switching elements of at least some full bridge modules are actuated such that the half bridge modules are charged further.

公开(公告)号：US20240278648A1

公开(公告)日：2024-08-22

申请号：US18172801

申请日：2023-02-22

Applicant: Eaton Intelligent Power Limited

Inventor： James DAVID ,  Neeraj SHARMA ,  Amit Ravindra CHAVAN ,  Ravikiran Panjabrao RATHOD ,  Matthew Charles HAYLOCK

IPC: B60L15/00 ,  B60L3/00 ,  H02M7/483 ,  H05K7/20

CPC classification number: B60L15/007 ,  B60L3/003 ,  H02M7/483 ,  H05K7/20927 ,  B60L2210/42 ,  B60L2240/525

Abstract: A thermal management system for an automotive inverter includes an active discharge circuit in thermal communication with a DC link capacitor, a thermal interface material positioned between the active discharge circuit and the DC link capacitor such that heat generated from the active discharge circuit is transferred to the DC link capacitor, and a coolant channel for a cooling fluid extending between the DC link capacitor and a base plate of the automotive inverter, wherein the heat generated from the active discharge circuit of the automotive inverter is transferred from the DC link capacitor to dissipate the heat. A method to thermally manage heat dissipated from automotive inverter is also provided.

公开(公告)号：US12012007B2

公开(公告)日：2024-06-18

申请号：US17588705

申请日：2022-01-31

Applicant: DCBEL INC.

Inventor： Hani Vahedi ,  Marc-André Forget ,  Peter Ibrahim

IPC: B60L53/10 ,  B60L53/302 ,  H02J7/00 ,  H02J7/02 ,  H02J7/35 ,  H02M7/483 ,  H02M7/797 ,  H02M1/00

CPC classification number: B60L53/11 ,  B60L53/302 ,  H02J7/00714 ,  H02J7/02 ,  H02J7/35 ,  H02M7/4837 ,  H02M7/797 ,  B60L2210/12 ,  B60L2210/14 ,  B60L2210/30 ,  H02J2207/20 ,  H02J2310/48 ,  H02M1/0085 ,  H02M7/483 ,  H02M7/4833

Abstract: A battery charger capable of receiving AC power and delivering both AC and DC power to an electric power storage battery in accordance to different embodiments disclosed herein using a rectifier circuit supplying the DC load and absorbing power as a five-level active rectifier with low harmonics on the AC input. In one aspect, the battery charger may have a bidirectional rectifier/inverter converter providing power conversion between a DC source and AC enabling the user to not only charge an electrical vehicle (“EV”) but also convert the energy charged in the EV/battery or solar panel to AC for use.

公开(公告)号：US20240195320A1

公开(公告)日：2024-06-13

申请号：US18508488

申请日：2023-11-14

Applicant: Solaredge Technologies Ltd.

Inventor： Ilan Yoscovich ,  Tzachi Glovinsky ,  Guy Sella ,  Yoav Galin

IPC: H02M7/483 ,  H02M1/00 ,  H02M1/08 ,  H02M1/12 ,  H02M1/14 ,  H02M7/537

CPC classification number: H02M7/483 ,  H02M1/0095 ,  H02M1/08 ,  H02M1/126 ,  H02M1/143 ,  H02M7/4833 ,  H02M7/4837 ,  H02M7/537 ,  H02M1/0054 ,  H02M7/4835

Abstract: A multi-level inverter having one or more 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.

公开(公告)号：US11990849B2

公开(公告)日：2024-05-21

申请号：US17587405

申请日：2022-01-28

Applicant: Virginia Tech Intellectual Properties, Inc.

Inventor： Jih-Sheng Lai ,  Moonhyun Lee

IPC: H02M7/483 ,  H02M1/00 ,  H02M3/335 ,  H02M5/453 ,  H02M5/458 ,  H02M7/49 ,  H02M7/5387

CPC classification number: H02M7/4835 ,  H02M1/0095 ,  H02M3/33573 ,  H02M7/53871 ,  H02M5/453 ,  H02M5/458 ,  H02M5/4585 ,  H02M7/483 ,  H02M7/49

Abstract: This disclosure provides systems, methods, and apparatus for multi-level inverters. A hybrid binary cascaded multilevel inverter (BCMLI) is discussed that includes a plurality of H-bridge cells connected in a cascaded formation. DC input voltages of some of the H-bridge cells are provided by DC voltage sources. But inputs of other H-bridge cells coupled with capacitors instead. The H-bridge cells are operated to provide an AC output voltage at the output terminals of the inverter. One or more floating capacitor voltage controllers are used to vary one or more switching instances of the H-bridge cells such that a desirable level or charge is maintained across the one or more capacitors coupled with the input terminals of the H-bridge cells.

公开(公告)号：US11967907B2

公开(公告)日：2024-04-23

申请号：US17607404

申请日：2020-05-22

Applicant: ZHEJIANG UNIVERSITY

Inventor： Tingna Shi ,  Huan Yao ,  Yan Yan ,  Guozheng Zhang ,  Zhiqiang Wang ,  Changliang Xia

IPC: H02M7/483 ,  H02M1/00

CPC classification number: H02M7/4835 ,  H02M1/007 ,  H02M7/483

Abstract: The invention proposed a space vector pulse width modulation (SVPWM) method for any level cascaded H-bridge inverter. The multilevel space vector diagram is re-divided, and the coordinates of the nearest three vectors (NTVs) are directly obtained by judging the position of the reference vector. The duty cycles of the NTVs is calculated through additional vector which is equivalent to the reference vector. Then, the switching states are obtained by zero-sequence component and coordinate transformation, and the desired reference vector is synthesized for the SVPWM modulation. The invention realizes multilevel modulation in Cartesian coordinates without any iterative calculation, and the calculation is independent of the level number. Furthermore, the locating of the reference vector and the calculation of the duty cycles are simplified, and the calculation complexity is reduced.

公开(公告)号：US11949342B2

公开(公告)日：2024-04-02

申请号：US17437693

申请日：2020-03-12

Applicant: DCBEL INC.

Inventor： Peter Ibrahim ,  Hani Vahedi ,  Jean-Hugues Deschenes ,  Marc-André Forget

IPC: H02M7/483 ,  B60L53/10 ,  H02M7/00 ,  H02M7/04

CPC classification number: H02M7/483 ,  B60L53/11 ,  H02M7/003 ,  H02M7/043 ,  B60L2210/12 ,  B60L2210/14 ,  B60L2210/30 ,  B60L2210/40

Abstract: The present disclosure provides a bidirectional power converter capable of receiving and delivering AC and DC power from and to multiple ports in accordance to its different embodiments. The AC or DC input receives power and at least two power conversion circuits work with a plurality of switches for connecting provides DC or AC current at multiple ports. The power conversion circuits may be rectifier inverters and have module form that connect to the AC and DC ports via a backplane having multiple connectors. The apparatus may also provide DC to DC conversion using a buck/boost circuit.

公开(公告)号：US11949322B2

公开(公告)日：2024-04-02

申请号：US17769429

申请日：2020-09-18

Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

Inventor： Kenichi Kondo ,  Ryota Okuyama ,  Takashi Sugiyama

IPC: H02M1/00 ,  H02M1/084 ,  H02M1/12 ,  H02M7/483 ,  H02M7/5387

CPC classification number: H02M1/007 ,  H02M1/0025 ,  H02M1/084 ,  H02M1/126 ,  H02M7/483 ,  H02M7/53871

Abstract: A power conversion device includes a first control device to an m-th control device that are capable of communicating with each other. A k-th control device transmits specific information to control devices other than the k-th control device among the first control device to the m-th control device. The specific information includes voltage values of a plurality of unit converters included in a k-th cell set in each of a first arm to a third arm. From each control device other than the k-th control device among the first control device to the m-th control device, the k-th control device receives specific information including the voltage values of the plurality of unit converters. The k-th control device calculates a phase representative value of the voltage values of the plurality of unit converters included in each of the first arm to the third arm.

公开(公告)号：US20240097595A1

公开(公告)日：2024-03-21

申请号：US18460227

申请日：2023-09-01

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro INOMATA ,  Akira YAMAZAKI ,  Takanori IWAKI ,  Joji EBISU ,  Shingo FUKUMARU

IPC: H02P27/08 ,  H02M7/483 ,  H02P25/022

CPC classification number: H02P27/08 ,  H02M7/483 ,  H02P25/022

Abstract: To provide a power conversion device that is effective for improving controllability of power in power conversion for multilevel voltage output. A power conversion device includes a switching circuit configured to supply a current to a motor by connecting and disconnecting a first point having a first potential, a second point having a second potential greater than the first potential, and a neutral point having a neutral potential between the first potential and the second potential to and from the motor, a neutral potential control unit configured to control the switching circuit in a manner to maintain the neutral potential within a target range, and a current control unit configured to increase a supply current to the motor without affecting a driving force generated by the motor at least when controlling the switching circuit 16 by the neutral potential control unit.