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.

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：US10594315B2

公开(公告)日：2020-03-17

申请号：US15651897

申请日：2017-07-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajdeep Bondade ,  Nathan Schemm ,  Rajarshi Mukhopadhyay

IPC: H03K17/16 ,  H03K5/1532 ,  H03K17/082

Abstract: An apparatus to monitor and control a switching rate in a switch includes a differentiator circuit including a capacitor and a configurable resistor. The differentiator circuit further includes an input terminal of the capacitors configured to receive a first voltage from a switch and a differentiator node configured to receive a differentiated voltage based on the first voltage. The apparatus includes a peak detector circuit coupled to the differentiator node and configured to detect a peak value of the differentiated voltage. The apparatus further includes a driver circuit coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak value of the differentiated voltage.

公开(公告)号：US20230188130A1

公开(公告)日：2023-06-15

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.

公开(公告)号：US10181847B2

公开(公告)日：2019-01-15

申请号：US15636365

申请日：2017-06-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajdeep Bondade ,  Nathan Schemm ,  Rajarshi Mukhopadhyay

IPC: H03K3/00 ,  H03K17/687 ,  H03K5/1532 ,  H03K5/08 ,  H03K3/0233 ,  H03K5/24 ,  H02M1/08

Abstract: An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage. The apparatus further includes a switch driver coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak amplitude.

公开(公告)号：US10651841B2

公开(公告)日：2020-05-12

申请号：US16247146

申请日：2019-01-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajdeep Bondade ,  Nathan Schemm ,  Rajarshi Mukhopadhyay

IPC: H03K3/00 ,  H03K17/687 ,  H03K5/1532 ,  H03K5/08 ,  H03K3/0233 ,  H03K5/24 ,  H02M1/08 ,  H03K17/082 ,  H03K17/16

Abstract: An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage. The apparatus further includes a switch driver coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak amplitude.

公开(公告)号：US20190149150A1

公开(公告)日：2019-05-16

申请号：US16247146

申请日：2019-01-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajdeep Bondade ,  Nathan Schemm ,  Rajarshi Mukhopadhyay

IPC: H03K17/687 ,  H02M1/08 ,  H03K5/24 ,  H03K5/08 ,  H03K17/082 ,  H03K3/0233 ,  H03K17/16 ,  H03K5/1532

Abstract: An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage. The apparatus further includes a switch driver coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak amplitude.