公开(公告)号：US20230400490A1

公开(公告)日：2023-12-14

申请号：US17899110

申请日：2022-08-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rengang CHEN ,  Bo WANG ,  Evan REUTZEL ,  Dattatreya Baragur SURYANARAYANA ,  Bhaskar RAMACHANDRAN ,  Preetam TADEPARTHY

IPC: G01R27/26 ,  H02M1/08 ,  H02M1/00 ,  H02M3/158

CPC classification number: G01R27/2611 ,  H02M1/08 ,  H02M1/0009 ,  H02M3/1584

Abstract: In an example, a circuit includes an emulated current generator configured to provide an emulated current signal responsive to a charge current and a discharge current. The emulated current signal can be representative of an emulated current through an output inductor. A comparator is configured to provide a comparator signal responsive to the emulated current signal and sensed current signal representative of a measure of current through the output inductor. An inductor code counter is configured to adjust an inductor code count value responsive to the comparator signal. A slope of the emulated current signal can be adjusted responsive to the inductor code count value.

公开(公告)号：US20250105742A1

公开(公告)日：2025-03-27

申请号：US18973263

申请日：2024-12-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rengang CHEN ,  Bo WANG ,  Evan REUTZEL ,  Dattatreya Baragur SURYANARAYANA ,  Bhaskar RAMACHANDRAN ,  Preetam TADEPARTHY

IPC: H02M3/158 ,  H02M1/00

Abstract: A circuit includes a current emulation circuit having an output and a current measurement circuit having an input and an output. The circuit also includes a first switch having a first terminal and a second terminal, the first terminal coupled to the output of the current measurement circuit and a second switch having a first terminal and a second terminal, the first terminal coupled to the output of the current emulation circuit and the second terminal coupled to the second terminal of the first switch. Additionally, the circuit includes a third switch having a first terminal and a second terminal, the first terminal coupled to the first terminal of the first switch and the second terminal coupled to the first terminal of the second switch.

公开(公告)号：US20240039406A1

公开(公告)日：2024-02-01

申请号：US17875214

申请日：2022-07-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rengang CHEN ,  Bo WANG ,  Evan REUTZEL ,  Dattatreya Baragur SURYANARAYANA ,  Bhaskar RAMACHANDRAN ,  Preetam TADEPARTHY

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009

Abstract: A DC-DC converter includes a current sense circuit. The current sense circuit includes a sense current output, an inductor current measurement circuit, an inductor current emulation circuit, a first switch, and a second switch. The inductor current measurement circuit has an output. The inductor current emulation circuit has an output. The first switch is coupled between the output of the inductor current measurement circuit and the sense current output. The second switch is coupled between the output of the inductor current emulation circuit and the sense current output.