公开(公告)号：US12051966B2

公开(公告)日：2024-07-30

申请号：US17710676

申请日：2022-03-31

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Chen Chen ,  Bin Ma ,  Weiping Liu ,  Zhaoxue Cui

IPC: H02M1/32 ,  B60L53/22 ,  H02M7/12 ,  H02M7/797 ,  H02H9/04

CPC classification number: H02M1/32 ,  B60L53/22 ,  H02H9/047 ,  H02M7/125 ,  H02M7/797

Abstract: A converter for avoiding a short-circuit fault of the converter while inhibiting a surge impact includes: a power factor correction (PFC) circuit, a surge protection circuit, and a switch circuit. The PFC circuit is configured to: convert a first component of a first alternating current received by an alternating current terminal of the PFC circuit into a first direct current, and output the first direct current through a direct current terminal of the PFC circuit; and convert a second direct current received by the direct current terminal of the PFC circuit into a second alternating current, and output the second alternating current through the alternating current terminal of the PFC circuit.

公开(公告)号：US11677328B2

公开(公告)日：2023-06-13

申请号：US17481076

申请日：2021-09-21

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Weiping Liu ,  Yongtao Liang ,  Chen Chen

IPC: H02M7/219 ,  H02M7/5387 ,  H02M1/10

CPC classification number: H02M7/219 ,  H02M1/10 ,  H02M7/5387

Abstract: A converter and a power supply system are disclosed, and relate to the power electronics field, to resolve a problem that a sampling circuit in an OBC circuit is relatively complex. The converter includes an alternating current unit, a switching unit, a conversion unit, a direct current unit, and a controller. The alternating current unit includes a U line, a V line, a W line, and an N line. The N line is connected to a ground of the controller, so that the controller can be directly connected to the U line, the V line, and the W line, to collect a voltage of the U line, a voltage of the V line, and a voltage of the W line. This simplifies the sampling circuit.