公开(公告)号：US10666164B2

公开(公告)日：2020-05-26

申请号：US16014862

申请日：2018-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kui Zhou ,  Yiping Huang ,  Haoren Shan

IPC: H02M7/797 ,  H02M7/5388 ,  H02M7/5387 ,  H02M1/42

Abstract: Disclosed is a bidirectional conversion circuit, including a first bidirectional conductive network, a second bidirectional conductive network, a first switching transistor, a second switching transistor, a first diode, and a second diode, where the first bidirectional conductive network is connected in series to the first switching transistor to form a first branch, and a first end of the first branch is connected to a cathode of the first diode to form a first endpoint; and the second bidirectional conductive network is connected in series to the second switching transistor to form a second branch, and a second end of the second branch is connected to an anode of the second diode to form a third endpoint.

公开(公告)号：US20200062140A1

公开(公告)日：2020-02-27

申请号：US16672064

申请日：2019-11-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kui Zhou ,  Boning Huang ,  Wenping Tong

IPC: B60L58/20 ,  B60L50/64 ,  B60L58/16 ,  H02J7/00 ,  H01M10/44 ,  H01M10/42

Abstract: A distributed battery pack power supply system, a charging control method, and a discharging control method, where a plurality of battery packs or battery groups is directly coupled in parallel or indirectly coupled in parallel as required using a charging/discharging circuit of the distributed battery pack power supply system and a corresponding control policy. A distributed battery includes a plurality of battery packs, and further includes a controller, a bidirectional voltage transformation circuit, a bypass circuit, a charging circuit, and a charging input end. Each battery pack corresponds to one bypass circuit and one bidirectional voltage transformation circuit.