公开(公告)号：US20220416783A1

公开(公告)日：2022-12-29

申请号：US17902007

申请日：2022-09-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhaozheng HOU ,  Xiaowei DONG ,  Nengchao QIU

IPC: H03K17/687 ,  H02H9/04

Abstract: Embodiments of this application disclose a drive circuit of a power device and a drive system, to drive the power device by using a small quantity of components. The drive circuit of the power device includes: a drive signal generation circuit, configured to generate a drive signal; a resistor and a capacitor that are connected in series, coupled to the drive signal generation circuit and the power device, and configured to control turn-on and turn-off of the power device based on the drive signal; and a voltage clamp circuit, coupled to the power device, and configured to control a gate voltage of the power device to be not greater than a gate withstand voltage.