公开(公告)号：US20230122886A1

公开(公告)日：2023-04-20

申请号：US17702682

申请日：2022-03-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yang Jiao ,  Johan Strydom

IPC: H02M1/00 ,  H02M3/158 ,  H02M1/42 ,  H02J7/02

Abstract: In one example, a controller circuit is configured to: receive a first measurement signal representing a power converter input voltage; receive a second measurement signal representing a power converter output voltage; receive an indication of whether a voltage across a switch is positive during a state change of the switch; based on the first and second measurement signals and the indication, determine: a charging interval; a first dead time interval after the charging interval; a discharging interval; and a second dead time interval after the discharging interval; and provide a first control signal at the first control output, and provide a second control signal at the second control output, in which the states of the first and second control signals vary across the charging interval, the first and second dead time intervals, and the discharging the interval.