公开(公告)号：US11916469B2

公开(公告)日：2024-02-27

申请号：US18251307

申请日：2020-11-06

Applicant: Nissan Motor Co., Ltd. ,  RENAULT S.A.S.

Inventor： Taku Shimomura ,  Keiichiro Numakura ,  Akinori Okubo

IPC: H02M1/00 ,  H02M1/08 ,  H02M3/156 ,  H02M3/00

CPC classification number: H02M1/0058 ,  H02M1/08 ,  H02M3/015 ,  H02M3/156

Abstract: A resonant power conversion device includes: a main circuit provided with a semiconductor switch, a capacitor and an inductor connected in series or parallel to the semiconductor switch; and a drive circuit configured to drive the switching element. The switching element enters an off-state or an on-state depending on a control voltage input to a gate terminal, and the drive circuit includes two or more types of control voltages, as a control voltage at which the switching element enters an off-state.

公开(公告)号：US20240063783A1

公开(公告)日：2024-02-22

申请号：US17820424

申请日：2022-08-17

Applicant: Texas Instruments Incorporated

Inventor： Navaneeth Kumar Narayanasamy

IPC: H03K17/60 ,  H03K17/06 ,  H03K17/28 ,  H02M1/08

CPC classification number: H03K17/60 ,  H03K17/06 ,  H03K17/28 ,  H02M1/08

Abstract: An electronic circuit for controlling a power switch having a gate input, includes a signal generator configured to generate a gate driver input signal. The gate driver input signal has a first voltage during a first period of time, a second voltage during a second period of time, and toggles between the first voltage and the second voltage during a third period of time. The electronic circuit also includes a gate driver configured to receive the gate driver input signal and to provide a gate driver output signal based on the gate driver input signal. The signal generator is configured to cause the gate driver input signal to toggle during the third period of time such that the gate driver output signal has a third voltage during the second period of time, and an intermediate voltage that is less than the third voltage during the third period of time.

公开(公告)号：US11909325B2

公开(公告)日：2024-02-20

申请号：US17521000

申请日：2021-11-08

Applicant: Chengdu Monolithic Power Systems Co., Ltd.

Inventor： Yuedong Chen

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/33592 ,  H02M1/08 ,  H02M1/0025

Abstract: A synchronous rectifier control circuit, used with a synchronous rectification circuit having a primary switch and a synchronous rectifier, having: a drain-source threshold setting circuit, configured to provide a dynamic drain-source voltage threshold based on a drain-source voltage across the synchronous rectifier; a primary switch detecting circuit, configured to provide a primary switch state indicating signal based on a comparison result of the drain-source voltage and the dynamic drain-source voltage threshold; and an on-control circuit, configured to provide a synchronous on signal to turn on the synchronous rectifier when the drain-source voltage decreases to the turn-on threshold, on the premise that the primary switch state indicating signal indicates an on state of the primary switch.

公开(公告)号：US11901881B1

公开(公告)日：2024-02-13

申请号：US17820424

申请日：2022-08-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Navaneeth Kumar Narayanasamy

IPC: H02M1/08 ,  H03K17/08 ,  H03K17/60 ,  H03K17/28 ,  H03K17/06

CPC classification number: H03K17/08 ,  H02M1/08 ,  H03K17/06 ,  H03K17/28 ,  H03K17/60

Abstract: An electronic circuit for controlling a power switch having a gate input, includes a signal generator configured to generate a gate driver input signal. The gate driver input signal has a first voltage during a first period of time, a second voltage during a second period of time, and toggles between the first voltage and the second voltage during a third period of time. The electronic circuit also includes a gate driver configured to receive the gate driver input signal and to provide a gate driver output signal based on the gate driver input signal. The signal generator is configured to cause the gate driver input signal to toggle during the third period of time such that the gate driver output signal has a third voltage during the second period of time, and an intermediate voltage that is less than the third voltage during the third period of time.

公开(公告)号：US20240048048A1

公开(公告)日：2024-02-08

申请号：US17976973

申请日：2022-10-31

Applicant: Texas Instruments Incorporated

Inventor： Liang Zhang

IPC: H02M3/07 ,  H02M1/08

CPC classification number: H02M3/07 ,  H02M1/08

Abstract: Described embodiments include a boost circuit for a DC-DC voltage converter includes a first transistor coupled between an input voltage terminal and a boost terminal. A second transistor is coupled between the first control terminal and a switch terminal, and has a second control terminal coupled to the switch terminal. A capacitor is coupled between the boost terminal and the switch terminal. A third transistor has a third control terminal and first and second current terminals. The first current terminal is coupled to the first control terminal, and the third control terminal is coupled to an internal voltage supply terminal. A fourth transistor is coupled between the internal voltage supply terminal and the second current terminal, and has a fourth control terminal coupled to a drive terminal.

公开(公告)号：US11894783B2

公开(公告)日：2024-02-06

申请号：US17232262

申请日：2021-04-16

Applicant: Mitsubishi Electric Corporation

Inventor： Shinji Sakai

IPC: H02M7/53 ,  H02M7/537 ,  H03K17/567 ,  H02M1/08 ,  H02M1/088

CPC classification number: H02M7/537 ,  H02M1/08 ,  H02M1/088 ,  H03K17/567

Abstract: A semiconductor device includes: first and second power transistors connected in parallel with each other and having different saturated currents; and a gate driver driving the first and second power transistors with individual gate voltages, respectively, the gate driver includes a drive circuit receiving an input signal and outputting a drive signal, a first amplifier amplifying the drive signal in accordance with first power voltage and supplying the amplified drive signal to a gate of the first power transistor, and a second amplifier amplifying the drive signal in accordance with second power voltage different from the first power voltage and supplying the amplified drive signal to a gate of the second power transistor.

公开(公告)号：US11888393B2

公开(公告)日：2024-01-30

申请号：US17537595

申请日：2021-11-30

Applicant: Texas Instruments Incorporated

Inventor： Muthusubramanian Venkateswaran ,  Rohit Narula ,  Preetam Charan Anand Tadeparthy ,  Matthew John Ascher Schurmann ,  Rajesh Venugopal

IPC: H02M3/155 ,  H02M1/32 ,  H02M1/08 ,  H02M1/36 ,  H02M3/158

CPC classification number: H02M3/155 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/1586

Abstract: A multiphase controller includes an integrator enable terminal, a pulse width modulator, an error integrator, an open drain driver, and an integrator enable circuit. The integrator enable terminal is adapted to be coupled to the integrator enable terminal of a different instance of the multiphase controller. The pulse width modulator is configured to modulate a power stage. The error integrator is configured to control the pulse width modulator. The open drain driver is coupled to the integrator enable circuit. The integrator enable circuit is coupled to the pulse width modulator, the error integrator, the open drain driver, and the integrator enable terminal. The integrator enable circuit is configured to activate the open drain driver responsive to generation of a power stage control pulse by the pulse width modulator, and activate the error integrator responsive to a logic low signal at the integrator enable terminal.

公开(公告)号：US20240022179A1

公开(公告)日：2024-01-18

申请号：US17886891

申请日：2022-08-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anthony Michael COPPOLA ,  Erik Brandon Golm ,  Alireza Fatemi ,  Ming Liu ,  Seongchan Pack ,  Muhammad Hussain Alvi ,  Ronald O. Grover, JR.

IPC: H02M7/00 ,  H02M1/08 ,  H02M7/5387 ,  H05K7/20 ,  B60L15/20

CPC classification number: H02M7/003 ,  H02M1/08 ,  H02M7/5387 ,  H05K7/209 ,  B60L15/20

Abstract: A power control system for an electric vehicle includes a power inverter comprising a switch module including a plurality of power switches, a controller board, and a gate driver board in communication with the controller board and configured to drive gates of the plurality of switches. A first housing is made of polymer composite, encloses the power inverter, defines a first cooling cavity in thermal communication with a first surface of the switch module, and encapsulates a portion of at least one of the switch module, the controller board and the gate driver board.

公开(公告)号：US11876436B2

公开(公告)日：2024-01-16

申请号：US17457950

申请日：2021-12-07

Applicant: Halo Microelectronics International

Inventor： Milind Chandra Gupta

IPC: H02M1/08 ,  G01R19/165 ,  H02M1/00

CPC classification number: H02M1/08 ,  G01R19/16571 ,  H02M1/0009

Abstract: A method includes detecting a first current flowing through a first clamping device coupled to a gate of a power switch, determining whether an inductor current reduces to zero based upon a first comparison between the first current and a first predetermined current level, and after determining the inductor current reduces to zero, determining whether a drain voltage of the power switch enters a valley of a resonant ringing based upon a second comparison between the first current and the first predetermined current level.

公开(公告)号：US20240014727A1

公开(公告)日：2024-01-11

申请号：US18037426

申请日：2021-11-22

Applicant: Rohm Co., Ltd.

Inventor： Hiroki KIKUCHI

IPC: H02M1/08 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M1/08 ,  H02M3/33515 ,  H02M1/0012 ,  H02M1/0009

Abstract: A power control device (40) includes a feedback voltage generator (401), which generates as a differential current (I_DF) the difference between a first current (I_VDS) generated by a first resistor (59) having one terminal connectable to a current input terminal (DRAIN terminal) and a second current (I_VH) generated by a second resistor (58) having one terminal connectable to an application terminal for an input voltage (VIN) and which generates a feedback voltage (V1) based on the differential current generated.