公开(公告)号：US20250167717A1

公开(公告)日：2025-05-22

申请号：US19030039

申请日：2025-01-17

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yankun Xu ,  Lele Zhao

IPC: H02P29/024

Abstract: This application provides a motor controller, a drive circuit, a power device. The motor controller includes a bridge arm circuit and a drive circuit. The bridge arm circuit includes a plurality of switching transistor bridge arms. The drive circuit is configured to provide a plurality of drive voltages to a plurality of switching transistors of the bridge arm circuit respectively. The drive circuit includes a plurality of transformers, a primary-side switch, and a control unit. A primary-side winding of each transformer includes a primary-side primary winding and a primary-side feedback winding. A secondary-side winding of each transformer is configured to output one drive voltage. One end of each primary-side primary winding is configured to connect to a power supply. The other end of each primary-side primary winding is connected to an end of the primary-side switching transistor. The motor controller reduces structural complexity of the drive circuit.