公开(公告)号：US20210249958A1

公开(公告)日：2021-08-12

申请号：US17138881

申请日：2020-12-30

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Masayuki IDA ,  Yasuhiko KOKAMI ,  Hideyuki TAJIMA ,  Hiroyuki INOUE ,  Noboru INOMATA

IPC: H02M3/158 ,  G05F1/46 ,  H03K19/20 ,  H03K17/687 ,  H02M1/00

Abstract: A DC-DC converter includes a high-side switch coupled between a first power supply and an output terminal, a low-side switch coupled between a second power supply and the output terminal, an inductor coupled to the output terminal, and a reverse current monitoring circuit that determines that a reverse current from the inductor to the output terminal occurs when the output terminal becomes a high voltage during a state in which the high-side switch and the low-side switch are in a dead time.