公开(公告)号：US12261520B2

公开(公告)日：2025-03-25

申请号：US18171752

申请日：2023-02-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata Veeramreddi ,  Subhash Sahni

IPC: H02M1/08 ,  H02M3/158 ,  H02M1/00

Abstract: A switch-mode power supply and a zero current detector for use therein. A zero current detector includes an input stage and an output stage. The output stage is coupled to the input stage. The output stage includes a detector output terminal, a first transistor, and a second transistor. The first transistor includes an input terminal and a control terminal. The input terminal is coupled to the detector output terminal. The control terminal is coupled to the input stage. The second transistor includes an input terminal, a control terminal, and an output terminal. The input terminal is coupled to the control terminal of the first transistor. The control terminal is coupled to the input terminal of the second transistor. The output terminal is coupled to ground.

公开(公告)号：US11817772B2

公开(公告)日：2023-11-14

申请号：US17380135

申请日：2021-07-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Subhash Sahni ,  Murugesh Subramaniam ,  Pranav Sinha

IPC: H02M1/08 ,  H03K17/284 ,  H03K17/08 ,  H02M3/157 ,  H02M3/158 ,  H02M1/38 ,  H03K19/20

CPC classification number: H02M1/08 ,  H02M1/38 ,  H02M3/157 ,  H02M3/158 ,  H03K17/08 ,  H03K17/284 ,  H03K19/20 ,  H03K2017/0806

Abstract: A circuit includes a first gate control circuit including a first time delay element and first and second logic gates. The first time delay element and first and second logic gates receive a pulse width modulation (PWM) signal. The first logic gate includes a first output and second logic gate includes a second output. The circuit also includes a second gate control circuit that includes a second time delay element and third and fourth logic gates. The second time delay element includes an input coupled to the output of the first time delay element. The third logic gate includes a third output, and the fourth logic gate includes a fourth output. A first gate driver receives a first signal from one of the first or third outputs. A second gate driver receives a second signal from one of the second or fourth outputs.

公开(公告)号：US20230208277A1

公开(公告)日：2023-06-29

申请号：US18171752

申请日：2023-02-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata Veeramreddi ,  Subhash Sahni

IPC: H02M1/08 ,  H02M3/158

CPC classification number: H02M1/083 ,  H02M3/158 ,  H02M1/0009

Abstract: A switch-mode power supply and a zero current detector for use therein. A zero current detector includes an input stage and an output stage. The output stage is coupled to the input stage. The output stage includes a detector output terminal, a first transistor, and a second transistor. The first transistor includes an input terminal and a control terminal. The input terminal is coupled to the detector output terminal. The control terminal is coupled to the input stage. The second transistor includes an input terminal, a control terminal, and an output terminal. The input terminal is coupled to the control terminal of the first transistor. The control terminal is coupled to the input terminal of the second transistor. The output terminal is coupled to ground.

公开(公告)号：US11101726B2

公开(公告)日：2021-08-24

申请号：US16589799

申请日：2019-10-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Subhash Sahni ,  Murugesh Subramaniam ,  Pranav Sinha

IPC: H02M1/38 ,  H02M1/08 ,  H03K17/284 ,  H03K17/08 ,  H02M3/157 ,  H02M3/158 ,  H03K19/20

Abstract: A circuit includes a first gate control circuit including a first time delay element and first and second logic gates. The first time delay element and first and second logic gates receive a pulse width modulation (PWM) signal. The first logic gate includes a first output and second logic gate includes a second output. The circuit also includes a second gate control circuit that includes a second time delay element and third and fourth logic gates. The second time delay element includes an input coupled to the output of the first time delay element. The third logic gate includes a third output, and the fourth logic gate includes a fourth output. A first gate driver receives a first signal from one of the first or third outputs. A second gate driver receives a second signal from one of the second or fourth outputs.

公开(公告)号：US11588392B2

公开(公告)日：2023-02-21

申请号：US17108028

申请日：2020-12-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata Veeramreddi ,  Subhash Sahni

IPC: H02M1/08 ,  H02M3/158 ,  H02M1/00

Abstract: A switch-mode power supply and a zero current detector for use therein. A zero current detector includes an input stage and an output stage. The output stage is coupled to the input stage. The output stage includes a detector output terminal, a first transistor, and a second transistor. The first transistor includes an input terminal and a control terminal. The input terminal is coupled to the detector output terminal. The control terminal is coupled to the input stage. The second transistor includes an input terminal, a control terminal, and an output terminal. The input terminal is coupled to the control terminal of the first transistor. The control terminal is coupled to the input terminal of the second transistor. The output terminal is coupled to ground.

公开(公告)号：US20210083565A1

公开(公告)日：2021-03-18

申请号：US17108028

申请日：2020-12-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata Veeramreddi ,  Subhash Sahni

IPC: H02M1/08 ,  H02M3/158

Abstract: A switch-mode power supply and a zero current detector for use therein. A zero current detector includes an input stage and an output stage. The output stage is coupled to the input stage. The output stage includes a detector output terminal, a first transistor, and a second transistor. The first transistor includes an input terminal and a control terminal. The input terminal is coupled to the detector output terminal. The control terminal is coupled to the input stage. The second transistor includes an input terminal, a control terminal, and an output terminal. The input terminal is coupled to the control terminal of the first transistor. The control terminal is coupled to the input terminal of the second transistor. The output terminal is coupled to ground.

公开(公告)号：US10855164B2

公开(公告)日：2020-12-01

申请号：US16122953

申请日：2018-09-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata Veeramreddi ,  Subhash Sahni

IPC: H02M1/08 ,  H02M3/158 ,  H02M1/00

Abstract: A switch-mode power supply and a zero current detector for use therein. A zero current detector includes an input stage and an output stage. The output stage is coupled to the input stage. The output stage includes a detector output terminal, a first transistor, and a second transistor. The first transistor includes an input terminal and a control terminal. The input terminal is coupled to the detector output terminal. The control terminal is coupled to the input stage. The second transistor includes an input terminal, a control terminal, and an output terminal. The input terminal is coupled to the control terminal of the first transistor. The control terminal is coupled to the input terminal of the second transistor. The output terminal is coupled to ground.