公开(公告)号：US10763661B2

公开(公告)日：2020-09-01

申请号：US15703999

申请日：2017-09-14

Applicant: NXP B.V.

Inventor： Mingliang Wan ,  Fu Chun Zhan ,  Yuanwei Yang

IPC: H02H3/18 ,  H02H3/08 ,  H02H11/00 ,  H02H3/00

Abstract: A reverse current protection circuit for a switch circuit includes a reverse current control circuit and an enable/disable circuit coupled to the reverse current control circuit. The reverse current control circuit is coupled to an input terminal and an output terminal of the switch circuit, and disconnects the output terminal of the switch circuit from the input terminal of the switch circuit when an output voltage of the switch circuit is higher than a first predetermined voltage. The enable/disable circuit disables the reverse current control circuit for a first predetermined time period when the output voltage of the switch circuit becomes lower than the first predetermined voltage after being higher than the first predetermined voltage, and enables the reverse current control circuit after the first predetermined time period.