公开(公告)号：US20240146096A1

公开(公告)日：2024-05-02

申请号：US18492022

申请日：2023-10-23

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jin YANG ,  Zejie LV ,  Yang LIU ,  Yaping LIU ,  Jiansheng CHEN

IPC: H02J7/35 ,  B60L53/51 ,  H02J7/00

CPC classification number: H02J7/35 ,  B60L53/51 ,  H02J7/0029 ,  B60L2210/10 ,  H02J2207/20

Abstract: A charging apparatus, a charging pile, and a charging system. The charging apparatus includes a positive bus, a negative bus, a DC/DC conversion circuit, and a soft-start circuit. The soft-start circuit is connected to an input end of the DC/DC conversion circuit through the positive bus and the negative bus, and the input end of the DC/DC conversion circuit is connected to a photovoltaic apparatus or an energy storage apparatus through the positive bus and the negative bus. Therefore, when a first voltage between the positive bus and the negative bus is greater than or equal to a first threshold, the DC/DC conversion circuit may perform power conversion on a second voltage received from the photovoltaic apparatus or the energy storage apparatus, and output the second voltage obtained after power conversion.

公开(公告)号：US20240204556A1

公开(公告)日：2024-06-20

申请号：US18594522

申请日：2024-03-04

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yaping LIU ,  Jiansheng CHEN ,  Yang LIU ,  Zhenting JIANG

IPC: H02J7/06 ,  H02J7/00 ,  H02M1/00 ,  H02M3/158 ,  H02M7/23

CPC classification number: H02J7/06 ,  H02J7/0047 ,  H02M1/0067 ,  H02M3/158 ,  H02M7/23 ,  H02J2207/20

Abstract: An AC/DC converter and a charging apparatus. The AC/DC converter includes a circuit of at least one phase. In a circuit of each phase, a first end of an inductor is coupled to an alternating current power supply, and the second end of the inductor is coupled to a first end of a first winding and a first end of a second winding; the second end of the first winding is coupled to a winding connection end of a first switching unit, and the second end of the second winding is coupled to a winding connection end of a second switching unit; a bus connection end of the first switching unit is coupled to a bus of the AC/DC converter through at least two first rectifier units.