公开(公告)号：US10924001B2

公开(公告)日：2021-02-16

申请号：US16109276

申请日：2018-08-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Xiong Li ,  Toru Tanaka

IPC: H02M1/32 ,  H02M7/5387 ,  H02P27/08 ,  H02M1/08

Abstract: A gate driver controller, inverter circuit apparatus, and associated discharge method for electric vehicles are disclosed. An example gate driver controller includes a mode determiner to set a mode of operation of the gate driver. The example device includes a gate driver control to control the gate driver to set the gate driver to: a) on, b) off, or c) generate a pulse width modulation signal. When in a first operating mode and set to on, stored energy is to be transferred from a capacitor to a motor winding inductor via a power transistor activated by the gate driver to dissipate a first portion of the stored energy. When in a second operating mode, a second portion of the stored energy is to be transferred from the motor winding inductor to the power transistor to dissipate the second portion of the stored energy.

公开(公告)号：US11838011B2

公开(公告)日：2023-12-05

申请号：US17495968

申请日：2021-10-07

Applicant: Texas Instruments Incorporated

Inventor： Xiong Li ,  Toru Tanaka

IPC: G01K7/16 ,  H03K17/14 ,  H03K17/16 ,  H02P27/08 ,  G01K7/01

CPC classification number: H03K17/14 ,  G01K7/16 ,  H03K17/168 ,  G01K7/01 ,  H02P27/08

Abstract: A system comprises a gate driver that is configured to couple to a transistor disposed in a transistor module via a first pin. The gate driver comprises a duty cycle measurement circuit having a first input terminal and a first output terminal, the first input terminal coupled to a second pin via an isolator. The duty cycle measurement circuit comprises a flip-flop, a counter, a shift register, and a comparator. The system comprises an analog to digital converter circuit having a second input terminal, a second output terminal, and a reference terminal, the second input terminal coupled to a third pin configured to couple to a temperature-sensitive device disposed in the transistor module, the second output terminal coupled to a fourth pin via the isolator, and the reference terminal coupled to the first output terminal.

公开(公告)号：US10700586B2

公开(公告)日：2020-06-30

申请号：US15142852

申请日：2016-04-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyamsunder Balasubramanian ,  Toshio Yamanaka ,  Toru Tanaka ,  Mayank Garg

IPC: H02P29/02 ,  H02P6/08 ,  H03K5/134 ,  H02P6/12 ,  H02M1/08 ,  H02M1/32 ,  H03K17/12 ,  H02P29/024 ,  H03K17/0812 ,  H03K17/687

Abstract: A gate driver circuit includes a comparator and a gate driver. The comparator is configured to detect a short circuit in a first power field effect transistor (FET). The gate driver is configured to drive a gate of the first power FET by generating a first signal at a first drive current. In response to the comparator detecting a short circuit in the first power FET, the gate driver is further configured to pulse the first signal at a first pulldown current. After the pulse has ended, the gate driver is further configured to drive the gate of the first power FET at a first hold current. The first hold current is less than the first pulldown current.

公开(公告)号：US09985571B2

公开(公告)日：2018-05-29

申请号：US15143030

申请日：2016-04-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Toshio Yamanaka ,  Shyamsunder Balasubramanian ,  Toru Tanaka ,  Mayank Garg

IPC: H02P31/00 ,  H02H7/09 ,  H02H7/08

CPC classification number: H02P31/00 ,  B60L3/00 ,  G06F1/28 ,  H02H7/0844 ,  H02H7/09

Abstract: An apparatus includes a control circuit that includes a configuration register and configured to receive a configuration setting across an external bus. The configuration setting encodes a first voltage state for the apparatus. The control circuit includes an input configured to be coupled to an external electrical device. The control circuit is configured to determine a value of the external device that maps to a second voltage state for the apparatus. The control logic is configured to transition the apparatus to a safe mode upon a determination that the first voltage state does not match the second voltage state.

公开(公告)号：US20220029618A1

公开(公告)日：2022-01-27

申请号：US17495968

申请日：2021-10-07

Applicant: Texas Instruments Incorporated

Inventor： Xiong Li ,  Toru Tanaka

IPC: H03K17/14 ,  G01K7/16 ,  H03K17/16

Abstract: A system comprises a gate driver that is configured to couple to a transistor disposed in a transistor module via a first pin. The gate driver comprises a duty cycle measurement circuit having a first input terminal and a first output terminal, the first input terminal coupled to a second pin via an isolator. The duty cycle measurement circuit comprises a flip-flop, a counter, a shift register, and a comparator. The system comprises an analog to digital converter circuit having a second input terminal, a second output terminal, and a reference terminal, the second input terminal coupled to a third pin configured to couple to a temperature-sensitive device disposed in the transistor module, the second output terminal coupled to a fourth pin via the isolator, and the reference terminal coupled to the first output terminal.

公开(公告)号：US11171640B2

公开(公告)日：2021-11-09

申请号：US15969034

申请日：2018-05-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Xiong Li ,  Toru Tanaka

IPC: G01K7/01 ,  H03K17/14 ,  G01K7/16 ,  H03K17/16 ,  H02P27/08

Abstract: A system comprises a gate driver that is configured to couple to a transistor disposed in a transistor module via a first pin. The gate driver comprises a duty cycle measurement circuit having a first input terminal and a first output terminal, the first input terminal coupled to a second pin via an isolator. The duty cycle measurement circuit comprises a flip-flop, a counter, a shift register, and a comparator. The system comprises an analog to digital converter circuit having a second input terminal, a second output terminal, and a reference terminal, the second input terminal coupled to a third pin configured to couple to a temperature-sensitive device disposed in the transistor module, the second output terminal coupled to a fourth pin via the isolator, and the reference terminal coupled to the first output terminal.

公开(公告)号：US20200153437A1

公开(公告)日：2020-05-14

申请号：US16741898

申请日：2020-01-14

Applicant: Texas Instruments Incorporated

Inventor： Xiong Li ,  Toru Tanaka

IPC: H03K19/0952 ,  H02M7/5387 ,  H03K17/06 ,  H03K5/19 ,  H03K17/22 ,  H03K19/017 ,  H02M7/537

Abstract: A gate driver includes a drive signal input terminal, a drive signal output terminal, a gate drive circuit, and a serial communication interface. The drive signal input terminal is configured to receive a gate drive signal. The gate drive circuit is coupled to the drive signal input terminal and the drive signal output terminal. The gate drive circuit is configured to provide the gate drive signal to the drive signal output terminal. The serial communication interface is coupled to the drive signal input terminal.

公开(公告)号：US10587268B2

公开(公告)日：2020-03-10

申请号：US16388353

申请日：2019-04-18

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Xiong Li ,  Toru Tanaka

IPC: H03K19/0952 ,  H02M7/537 ,  H03K19/017 ,  H03K17/22 ,  H03K5/19 ,  H03K17/06 ,  H02M7/5387

Abstract: A gate driver includes a drive signal input terminal, a drive signal output terminal, a gate drive circuit, and a serial communication interface. The drive signal input terminal is configured to receive a gate drive signal. The gate drive circuit is coupled to the drive signal input terminal and the drive signal output terminal. The gate drive circuit is configured to provide the gate drive signal to the drive signal output terminal. The serial communication interface is coupled to the drive signal input terminal.

公开(公告)号：US20200067400A1

公开(公告)日：2020-02-27

申请号：US16109276

申请日：2018-08-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Xiong Li ,  Toru Tanaka

IPC: H02M1/32 ,  H02M7/5387 ,  H02M1/08 ,  H02P27/08

Abstract: A gate driver controller, inverter circuit apparatus, and associated discharge method for electric vehicles are disclosed. An example gate driver controller includes a mode determiner to set a mode of operation of the gate driver. The example device includes a gate driver control to control the gate driver to set the gate driver to: a) on, b) off, or c) generate a pulse width modulation signal. When in a first operating mode and set to on, stored energy is to be transferred from a capacitor to a motor winding inductor via a power transistor activated by the gate driver to dissipate a first portion of the stored energy. When in a second operating mode, a second portion of the stored energy is to be transferred from the motor winding inductor to the power transistor to dissipate the second portion of the stored energy.

公开(公告)号：US10530308B2

公开(公告)日：2020-01-07

申请号：US15934467

申请日：2018-03-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyamsunder Balasubramanian ,  Wenxiao Tan ,  Mayank Garg ,  Toru Tanaka

IPC: H03F3/04 ,  H03F1/30

Abstract: An offset drift compensation circuit for correcting offset drift that changes with temperature. In one example, offset drift compensation circuit includes a low temperature offset compensation circuit and a high temperature offset circuit. The low temperature offset compensation circuit is configured to compensate for drift in offset at a first rate below a selected temperature. The high temperature offset compensation circuit is configured to compensate for drift in offset at a second rate above the selected temperature. The first rate is different from the second rate.