公开(公告)号：US20240204682A1

公开(公告)日：2024-06-20

申请号：US18418431

申请日：2024-01-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhigang LIANG ,  Yuandong MENG ,  Tao ZENG ,  Lixia ZOU ,  Chao YAN

IPC: H02M7/219 ,  H02J7/02 ,  H02M1/44

CPC classification number: H02M7/219 ,  H02J7/02 ,  H02M1/44 ,  H02J2207/20

Abstract: When a voltage phase of an ith-phase rectifier circuit of the three-phase rectifier circuit precedes a current phase of the ith-phase rectifier circuit by a first angle, the controller controls a switch of the ith-phase rectifier circuit to be turned on within a second angle after a voltage of the ith-phase rectifier circuit reaches a zero crossing point, where the second angle is greater than or equal to the first angle; and when the current phase of the ith-phase rectifier circuit of the three-phase rectifier circuit precedes the voltage phase of the ith-phase rectifier circuit by the first angle, the controller controls the switch of the ith-phase rectifier circuit to be turned on within a third angle before the voltage of the ith-phase rectifier circuit reaches the zero crossing point, where the third angle is greater than or equal to the first angle.