公开(公告)号：US20210296986A1

公开(公告)日：2021-09-23

申请号：US17204360

申请日：2021-03-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Xufeng WU ,  Wei ZHAO ,  Yueming SUN

IPC: H02M3/157 ,  H02M1/32 ,  H02M3/158

Abstract: A device includes a first FET coupled between first and drive terminals, and is configured to turn on/off responsive to a PWM signal having a first/second state, respectively. A second FET is coupled between the first and drive terminals and is configured to turn on responsive to the PWM signal having the first state, and turn off responsive to expiration of a particular delay after the second FET turns on. A third FET is coupled between drive and second terminals, and is configured to turn on/off responsive to the PWM signal having the second/first state, respectively. A fourth FET is coupled between the drive and second terminals, and is configured to turn on responsive to the PWM signal having the second state if a switching terminal has a first voltage, and turn off responsive to the PWM signal having the first state or the switching terminal having a second voltage.