公开(公告)号：US20180269869A1

公开(公告)日：2018-09-20

申请号：US15714643

申请日：2017-09-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajarshi MUKHOPADHYAY ,  Sooping SAW ,  Anuj JAIN

IPC: H03K17/16 ,  H02P6/14

CPC classification number: H03K17/162 ,  H02M1/08 ,  H02M1/44 ,  H02M7/5387 ,  H02M2001/0029 ,  H02M2001/0054 ,  H02P6/085 ,  H02P6/14 ,  H03K17/166 ,  H03K2217/0045 ,  H03K2217/0063 ,  H03K2217/0072

Abstract: Modulating a gate drive current supplied to an output drive switch coupled to an electric motor by performing at least the following: obtain a gate drive current modulation profile, supply, based on the gate drive current modulation profile, a first gate drive current level as the gate drive current when the output drive switch is operating within a first region, drop the first gate drive current level to a second gate drive current level when the output drive switch transitions from the first region to operating within a Miller region, increase the second gate drive current level to a third gate drive current level within the Miller region, and set the gate drive current to a fourth gate drive current level when the output drive switch transitions from the Miller region to operating within a third region.

公开(公告)号：US09929672B2

公开(公告)日：2018-03-27

申请号：US15041096

申请日：2016-02-11

Applicant: Samsung Electro-Mechanics Co., Ltd. ,  Research & Business Foundation Sungkyunkwan University

Inventor： Chang Soo Kang ,  Chul Gyun Park ,  Kang Yoon Lee ,  Joo Young Chun

IPC: H02M7/219 ,  H03K17/16

CPC classification number: H02M7/219 ,  H02M2007/2195 ,  H03K17/161 ,  H03K2217/0045 ,  Y02B70/1408

Abstract: A rectifier includes: first and second high side switches including source terminals connected to an alternating current input terminal and drain terminals connected to one end of an output capacitor; first and second low side switches including drain terminals connected to the alternating current input terminal and source terminals connected to a ground terminal and another end of the output capacitor; and a cross connector configured to allow parasitic capacitance of the first high side switch or the second high side switch to flow to a ground when the first high side switch or the second high side switch is turned off.

公开(公告)号：US20180034359A1

公开(公告)日：2018-02-01

申请号：US15648453

申请日：2017-07-12

Applicant: GuangDong Redx Electrical Technology Limited

Inventor： Xue Jian CHEN ,  Shilin GUO ,  Jianhui SU

IPC: H02M1/08 ,  H02M3/335 ,  H03K17/567

CPC classification number: H02M1/083 ,  H02M3/33592 ,  H02M2001/0058 ,  H03F3/217 ,  H03F3/2171 ,  H03F3/2173 ,  H03K17/166 ,  H03K17/567 ,  H03K2217/0009 ,  H03K2217/0045 ,  Y02B70/1475 ,  Y02B70/1491

Abstract: The present disclosure relates to a circuit arrangement which comprises one high-efficiency fully soft-switching single-stage 3-level power amplifier with dual auxiliary networks. The primary-side passive auxiliary network is formed by one inductor and two capacitors to extend soft switching ranges and avoid switching loss. The secondary-side active auxiliary network is constituted of four switches, three capacitors and two inductors which not only removes or maximally reduces otherwise occurring disruptive spikes but also assists zero voltage switching (ZVS) for switches of active auxiliary network. A predictive gate drive method for driving power switches is presented to guarantee ZVS turn-on. The proposed circuit achieves high level of integration without bulky dc link capacitor, and high-efficiency by single-stage conversion and ZVS for all the switches under different operating conditions.

公开(公告)号：US20180013422A1

公开(公告)日：2018-01-11

申请号：US15432743

申请日：2017-02-14

Applicant: Infineon Technologies Austria AG

Inventor： Kennith Kin Leong ,  Wenduo Liu ,  Gerald Deboy

IPC: H03K17/687

CPC classification number: H03K17/6871 ,  H02M3/156 ,  H02M7/5387 ,  H03K17/063 ,  H03K2217/0045 ,  H03K2217/0063 ,  H03K2217/0072 ,  H03K2217/0081 ,  H03K2217/009 ,  Y02B70/1441

Abstract: In accordance with an embodiment, a method of controlling a switch driver includes energizing a first inductor in a first direction with a first energy; transferring the first energy from the first inductor to a second inductor, wherein the second inductor is coupled between a second switch-driving terminal of the switch driver and a second internal node, and the second inductor is magnetically coupled to the first inductor; asserting a first turn-on signal at the second switch-driving terminal using the transferred first energy; energizing the first inductor in a second direction opposite the first direction with a second energy after asserting the first turn-on signal at the second switch-driving terminal; transferring the second energy from the first inductor to the second inductor; and asserting a first turn-off signal at the second switch-driving terminal using the transferred second energy.

公开(公告)号：US20170346484A1

公开(公告)日：2017-11-30

申请号：US15590826

申请日：2017-05-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAIKI NISHIMOTO ,  ATSUSHI YAMAMOTO ,  SHOICHI HARA

IPC: H03K17/567 ,  H02M3/158 ,  H02M3/335 ,  H03K17/0412 ,  H02M1/00

CPC classification number: H03K17/567 ,  H02M1/08 ,  H02M3/1584 ,  H02M3/33584 ,  H02M7/5387 ,  H02M2001/0003 ,  H02M2001/0045 ,  H03K17/0412 ,  H03K17/063 ,  H03K2217/0009 ,  H03K2217/0045

Abstract: An electric power conversion circuit includes: first through fourth port terminals; a first diode having an anode connected to the first port terminal; a second diode having a cathode connected to the second port terminal; a third diode having a cathode connected to the first port terminal; a fourth diode having an anode connected to the second port terminal; first through fourth switches that are bridge-connected between a cathode of the first diode and an anode of the second diode; fifth through eighth switches that are bridge-connected between an anode of the third diode and a cathode of the fourth diode; a first bootstrap circuit that is connected to control terminals of the first through fourth switches; and a second bootstrap circuit that is connected to control terminals of the fifth through eighth switches.

公开(公告)号：US09673816B2

公开(公告)日：2017-06-06

申请号：US14781448

申请日：2014-11-11

Applicant: Halliburton Energy Services, Inc.

Inventor： Steven Cong ,  Thomas Jones

IPC: H03K17/691 ,  E21B47/12 ,  E21B49/00 ,  G05G1/10 ,  H02M1/088 ,  H02M7/5387 ,  H03K5/08

CPC classification number: H03K17/691 ,  E21B47/12 ,  E21B49/00 ,  G01V3/34 ,  G01V11/002 ,  G01V2200/16 ,  G05G1/10 ,  H02M1/088 ,  H02M7/5387 ,  H03K5/08 ,  H03K2217/0045

Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to transform a first control signal to produce an isolated second control signal, to receive a pair of floating power supply voltages at opposing ends of a totem-pole series of driver metal-oxide semiconductor field-effect transistors (MOSFETs), and to clamp an output of a driver apparatus to one of the pair of floating power supply voltages. The isolated second control signal may operate to control current flow through the driver MOSFETs. Additional apparatus, systems, and methods are described.

公开(公告)号：US20170033789A1

公开(公告)日：2017-02-02

申请号：US14815816

申请日：2015-07-31

Applicant: Infineon Technologies Austria AG

Inventor： Remigiusz Viktor Boguszewicz

IPC: H03K17/567

CPC classification number: H03K17/567 ,  H03K17/0828 ,  H03K17/18 ,  H03K2017/0806 ,  H03K2217/0045

Abstract: A circuit for conveying information from a sender component to a receiver component is provided. The sender component is a high side component and the receiver component is a low side component or the sender component is a low side component and the receiver component is a high side component. The low side component is arranged to drive a first electronic switch of a half bridge and the high side component is arranged to drive a second electronic switch of the half bridge. The circuit includes a first voltage-decoupling device and a second voltage-decoupling device that are arranged such that a voltage conveyed from the sender component to the receiver component is modulated by the sender component and conveyed across the first voltage-decoupling device and the second voltage-decoupling device depending on the information.

Abstract translation: 提供了用于将信息从发送器组件传送到接收器组件的电路。 发送器组件是高端组件，接收器组件是低端组件，或者发送器组件是低端组件，接收器组件是高端组件。 低侧部件布置成驱动半桥的第一电子开关，并且高侧部件布置成驱动半桥的第二电子开关。 电路包括第一电压去耦装置和第二电压去耦装置，其被布置成使得从发送器部件传送到接收器部件的电压被发送器部件调制并且被传送过第一电压去耦装置，而第二电压去耦装置 电压去耦器件取决于信息。

公开(公告)号：US09337749B2

公开(公告)日：2016-05-10

申请号：US14218438

申请日：2014-03-18

Applicant: SEIKO EPSON CORPORATION

Inventor： Katsumi Inoue ,  Atsushi Yamada

IPC: H02M1/08 ,  H02M7/5387 ,  H02M1/32 ,  H03K17/082 ,  G01R31/40 ,  H02P29/02

CPC classification number: H02M7/5387 ,  G01R31/40 ,  H02M1/32 ,  H02P29/02 ,  H03K17/0822 ,  H03K2217/0045 ,  H03K2217/0081

Abstract: An electronic circuit includes a failure detection circuit that detects an abnormality of the gate potential of a transistor of a bridge circuit. The failure detection circuit monitors an output voltage of a drive circuit that is to be the gate potential of the transistor of the bridge circuit and, when detecting an abnormality, stops the drive circuit.

Abstract translation: 电子电路包括检测桥式电路的晶体管的栅极电位的异常的故障检测电路。 故障检测电路监视作为桥式电路的晶体管的栅极电位的驱动电路的输出电压，并且当检测到异常时，停止驱动电路。

公开(公告)号：US20150270707A1

公开(公告)日：2015-09-24

申请号：US14729906

申请日：2015-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiji Deng

IPC: H02H9/04

CPC classification number: H02H9/04 ,  H02H3/202 ,  H02H9/001 ,  H03K17/0812 ,  H03K2217/0045

Abstract: An overvoltage protection apparatus and method. The overvoltage protection apparatus includes: a determining unit, having an input end connected to an input end of the apparatus and an output end connected to an input end of a soft-start unit, and configured to determine whether an input voltage at the input end of the apparatus exceeds a preset protection voltage; and the soft-start unit, having an input end connected to the input end of the apparatus and an output end connected to an output end of the apparatus, where if the determining unit determines that the input voltage does not exceed the preset protection voltage and remains stable in a preset delay time, the soft-start unit delivers the input voltage to the output end of the apparatus; and otherwise, the soft-start unit does not deliver a voltage signal to the output end of the apparatus.

Abstract translation: 一种过电压保护装置及方法。 过电压保护装置包括：确定单元，具有连接到装置的输入端的输入端和连接到软启动单元的输入端的输出端，并且被配置为确定输入端的输入电压 的设备超过预设的保护电压; 以及软启动单元，其输入端连接到设备的输入端，输出端连接到设备的输出端，如果确定单元确定输入电压不超过预设保护电压，并且 在预设的延迟时间内保持稳定，软启动单元将输入电压输送到设备的输出端; 否则，软启动单元不向设备的输出端传送电压信号。

公开(公告)号：US20150188537A1

公开(公告)日：2015-07-02

申请号：US14565178

申请日：2014-12-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Naoki Isoda

IPC: H03K17/687

CPC classification number: H03K17/6872 ,  H03K19/0185 ,  H03K2217/0045

Abstract: A differential driving circuit includes a source current source, a sink current source, an H-bridge circuit, an error detector unit and a circuit network. The H-bridge circuit is connected to the source current source and the sink current source, that has a first output terminal and a second output terminal, and that generates differential output from the first output terminal and the second output terminal. The error detector unit adjusts a common mode voltage at the first output terminal and the second output terminal of the H-bridge circuit by controlling at least one of the source current source and the sink current source. The circuit network is configured by resistors and capacitors connected to the first output terminal and the second output terminal of the H-bridge circuit.

Abstract translation: 差分驱动电路包括源电流源，宿电流源，H桥电路，误差检测器单元和电路网络。 H桥电路连接到源极电流源和吸收电流源，其具有第一输出端子和第二输出端子，并且从第一输出端子和第二输出端子产生差分输出。 误差检测器单元通过控制源电流源和吸收电流源中的至少一个来调节H桥电路的第一输出端和第二输出端的共模电压。 电路网络由连接到H桥电路的第一输出端子和第二输出端子的电阻器和电容器构成。