公开(公告)号：US20230170793A1

公开(公告)日：2023-06-01

申请号：US18161884

申请日：2023-01-30

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Baoguo Chen ,  Dazhi Wang ,  Pengpeng Yu

IPC: H02M3/00 ,  H02J9/06 ,  H02M3/158

CPC classification number: H02M3/003 ,  H02J9/061 ,  H02M3/1582

Abstract: This application discloses a three-wire DC-DC converter and a parallel power supply system. The parallel power supply system includes a common wiring busbar, an input wiring busbar, an output wiring busbar, and at least two three-wire DC-DC converters. Each three-wire DC-DC converter includes a DC-DC conversion circuit, an input wiring terminal, an output wiring terminal, and a common wiring terminal. Input wiring terminals of all the three-wire DC-DC converters are connected in parallel to the input wiring busbar, output wiring terminals of all the three-wire DC-DC converters are connected in parallel to the output wiring busbar, and the common wiring terminals of all the three-wire DC-DC converters are connected in parallel to the common wiring busbar. The wiring busbar is configured to connect a first direct current power supply and a load.