公开(公告)号：US20180302007A1

公开(公告)日：2018-10-18

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 ,  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：US20190267827A1

公开(公告)日：2019-08-29

申请号：US16411635

申请日：2019-05-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wentao HE ,  Kui ZHOU ,  Haoren SHAN

IPC: H02J7/02 ,  H02M1/42 ,  H02M3/158 ,  H02M7/12 ,  H02M7/48

Abstract: The present invention provides a charging and discharging apparatus, including an alternating current charging and discharging unit, a bidirectional alternating current/direct current conversion unit, a bidirectional direct current/direct current isolated conversion unit, and a first energy storage unit that are sequentially connected in series, and further including at least one switch unit, a direct current/direct current isolated conversion unit, and a second energy storage unit. A first end of each switch unit is connected to the bidirectional direct current/direct current isolated conversion unit, a second end of each switch unit is connected to a first end of the direct current/direct current isolated conversion unit, and a second end of the direct current/direct current isolated conversion unit is connected to the second energy storage unit.