公开(公告)号：US11201565B2

公开(公告)日：2021-12-14

申请号：US16785225

申请日：2020-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhaohui Wang ,  Lei Shi ,  Dianbo Fu

IPC: H02M7/487 ,  H02M7/483 ,  H02M7/515 ,  H02M7/5387 ,  H02M3/07 ,  H02J3/38 ,  H02M1/08 ,  H02J9/06 ,  H02M1/00

Abstract: A conversion circuit is disclosed. In the conversion circuit, an input terminal includes a positive direct current bus terminal and a negative direct current bus terminal, and an output terminal includes an alternating current output end; a first switch unit includes a flying clamping capacitor and a first converter bridge arm; a second switch unit includes a second converter bridge arm; an output end of the first switch unit and the second switch unit is connected to the alternating current output end; and the first switch unit and the second switch unit are connected to a control module, and switch under control of the control module, so that the conversion circuit converts between a direct current voltage and an alternating current voltage, to output a required alternating current voltage.