公开(公告)号：US11075627B2

公开(公告)日：2021-07-27

申请号：US16920943

申请日：2020-07-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Olivier Trescases ,  Johan Tjeerd Strydom ,  Rajarshi Mukhopadhyay

IPC: H03K3/00 ,  H03K17/687 ,  H03K5/08 ,  H03K17/042 ,  H03K17/082 ,  H01L29/16

Abstract: Methods and circuitry for driving a device are disclosed. An example of the circuitry includes a voltage sensing circuit coupled to an input of a transistor, the voltage sensing circuit having a first output at a node, the voltage sensing circuit comprising a capacitive voltage divider, and a current sensing circuit coupled to the input of the transistor and to the voltage sensing circuit, the current sensing circuit having a second output, the current sensing circuit comprising a resistive divider coupled to the input of the transistor.

公开(公告)号：US10024887B2

公开(公告)日：2018-07-17

申请号：US15245882

申请日：2016-08-24

Applicant: Texas Instruments Incorporated

Inventor： Olivier Trescases ,  Johan Tjeerd Strydom ,  Rajarshi Mukhopadhyay

IPC: H03K17/60 ,  G01R19/00 ,  G01R15/06 ,  H03K17/687 ,  G05F1/571

Abstract: Circuitry and methods for measuring the voltage at a node are disclosed. A capacitive divider is coupled to the node, wherein the capacitive divider provides a first output. A resistive divider is coupled to the node, wherein the resistive divider provides a second output.

公开(公告)号：US20180062510A1

公开(公告)日：2018-03-01

申请号：US15659062

申请日：2017-07-25

Applicant: Texas Instruments Incorporated

Inventor： Olivier Trescases ,  Johan Tjeerd Strydom ,  Rajarshi Mukhopadhyay

IPC: H02M3/156 ,  H03K17/284 ,  H03K17/687

CPC classification number: H02M3/156 ,  G01R19/2509 ,  H03K17/284 ,  H03K17/687

Abstract: Circuitry and methods for sampling a signal are disclosed. An example of the circuitry includes a node for coupling the circuitry to the signal being sampled and a plurality of capacitors, wherein each capacitor is selectively coupled to the node by a switch. An analog-to-digital converter is coupled to the node and is for measuring the voltages of individual ones of the plurality of capacitors and converting the voltages to digital signals. Delay circuitry is coupled to each of the switches, the delay circuitry is for closing one switch at a time for a predetermined period.

公开(公告)号：US09716430B1

公开(公告)日：2017-07-25

申请号：US15245902

申请日：2016-08-24

Applicant: Texas Instruments Incorporated

Inventor： Olivier Trescases ,  Johan Tjeerd Strydom ,  Rajarshi Mukhopadhyay

IPC: H03K17/00 ,  H02M3/156 ,  H03K17/687 ,  H03K17/284

CPC classification number: H02M3/156 ,  G01R19/2509 ,  H03K17/284 ,  H03K17/687

Abstract: Circuitry and methods for sampling a signal are disclosed. An example of the circuitry includes a node for coupling the circuitry to the signal being sampled and a plurality of capacitors, wherein each capacitor is selectively coupled to the node by a switch. An analog-to-digital converter is coupled to the node and is for measuring the voltages of individual ones of the plurality of capacitors and converting the voltages to digital signals. Delay circuitry is coupled to each of the switches, the delay circuitry is for closing one switch at a time for a predetermined period.

公开(公告)号：US12158769B2

公开(公告)日：2024-12-03

申请号：US17902723

申请日：2022-09-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Johan Tjeerd Strydom

IPC: G05F1/575 ,  G05F1/565 ,  G05F1/577

Abstract: A current booster circuit, which can be coupled between a gate driver and a power switch, includes controlled current sources and current sensors to provide a scaled copy of the booster input current at the booster output while operating in a current-gain mode during on-to-off or off-to-on switching periods. During switched-on or switched-off periods, the booster can pull the output to the high or low rail, respectively, through low-impedance circuitry to hold the switch on or off. A voltage and/or current feedback path between the booster output and the booster input permits the booster to control the voltage input during switching operation. The current booster devices and methods can be compatible with both smart and conventional gate drivers of either the voltage-driven or current-driven variety.

公开(公告)号：US20230336172A1

公开(公告)日：2023-10-19

申请号：US18208345

申请日：2023-06-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajdeep Bondade ,  Maxim Franke ,  Stephen Phillip Savage ,  Mrinal Kanti Das ,  Johan Tjeerd Strydom

IPC: H03K17/082 ,  H03K17/687

CPC classification number: H03K17/0822 ,  H03K17/6871 ,  H03K2217/94

Abstract: In one example, an apparatus comprises: a voltage sensing circuit having a voltage sensing terminal and a voltage sensing output, the voltage sensing circuit configured to generate a first voltage at the voltage sensing output representing a second voltage at the voltage sensing terminal; a control circuit having a control circuit input and a control circuit output, the control circuit input coupled to the voltage sensing output, the control circuit configured to: determine a state of a transistor based on the first voltage; and generate a driver signal at the control circuit output based on the state; and a driver circuit having a driver input and a switch control output, the driver input coupled to the control circuit output, the driver circuit configured to provide a current at the switch control output responsive to the driver signal.

公开(公告)号：US11435770B2

公开(公告)日：2022-09-06

申请号：US17138536

申请日：2020-12-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Johan Tjeerd Strydom

IPC: G05F1/575 ,  G05F1/577 ,  G05F1/565

Abstract: A current booster circuit, which can be coupled between a gate driver and a power switch, includes controlled current sources and current sensors to provide a scaled copy of the booster input current at the booster output while operating in a current-gain mode during on-to-off or off-to-on switching periods. During switched-on or switched-off periods, the booster can pull the output to the high or low rail, respectively, through low-impedance circuitry to hold the switch on or off. A voltage and/or current feedback path between the booster output and the booster input permits the booster to control the voltage input during switching operation. The current booster devices and methods can be compatible with both smart and conventional gate drivers of either the voltage-driven or current-driven variety.

公开(公告)号：US10742209B2

公开(公告)日：2020-08-11

申请号：US16273851

申请日：2019-02-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Olivier Trescases ,  Johan Tjeerd Strydom ,  Rajarshi Mukhopadhyay

IPC: H03K3/00 ,  H03K17/687 ,  H03K5/08 ,  H03K17/042 ,  H01L29/16 ,  H03K17/082

Abstract: Methods and circuitry for driving a device are disclosed. An example of the circuitry includes a voltage sensing circuit coupled to an input of a transistor, the voltage sensing circuit having a first output at a node, the voltage sensing circuit comprising a capacitive voltage divider, and a current sensing circuit coupled to the input of the transistor and to the voltage sensing circuit, the current sensing circuit having a second output, the current sensing circuit comprising a resistive divider coupled to the input of the transistor.

公开(公告)号：US20180059151A1

公开(公告)日：2018-03-01

申请号：US15245882

申请日：2016-08-24

Applicant: Texas Instruments Incorporated

Inventor： Olivier Trescases ,  Johan Tjeerd Strydom ,  Rajarshi Mukhopadhyay

IPC: G01R19/00 ,  G01R15/06 ,  H03K17/687

CPC classification number: G01R19/0084 ,  G01R15/06 ,  G05F1/571 ,  H03K17/60 ,  H03K17/687

Abstract: Circuitry and methods for measuring the voltage at a node are disclosed. A capacitive divider is coupled to the node, wherein the capacitive divider provides a first output. A resistive divider is coupled to the node, wherein the resistive divider provides a second output.

公开(公告)号：US11716078B2

公开(公告)日：2023-08-01

申请号：US17709644

申请日：2022-03-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajdeep Bondade ,  Maxim Franke ,  Stephen Phillip Savage ,  Mrinal Kanti Das ,  Johan Tjeerd Strydom

IPC: H03K17/082 ,  H03K17/687

CPC classification number: H03K17/0822 ,  H03K17/6871 ,  H03K2217/94

Abstract: In one example, an apparatus comprises: a voltage sensing circuit having a voltage sensing terminal and a voltage sensing output, the voltage sensing circuit configured to generate a first voltage at the voltage sensing output representing a second voltage at the voltage sensing terminal; a control circuit having a control circuit input and a control circuit output, the control circuit input coupled to the voltage sensing output, the control circuit configured to: determine a state of a transistor based on the first voltage; and generate a driver signal at the control circuit output based on the state; and a driver circuit having a driver input and a switch control output, the driver input coupled to the control circuit output, the driver circuit configured to provide a current at the switch control output responsive to the driver signal.