公开(公告)号：US20240291382A1

公开(公告)日：2024-08-29

申请号：US18655778

申请日：2024-05-06

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jun WANG ,  Shaolei CHEN ,  Chuangpeng LI ,  Dongsheng ZHAO ,  Chenglong MA

IPC: H02M1/42 ,  H01F27/24 ,  H01F27/28 ,  H02M7/06

CPC classification number: H02M1/4208 ,  H01F27/24 ,  H01F27/28 ,  H02M7/06

Abstract: An inductor, a power factor correction circuit, and a power supply system. The inductor includes a coil winding and a magnetic core. The magnetic core includes a first outer magnetic core, a second outer magnetic core, and a winding unit. The first outer magnetic core and the second outer magnetic core are disposed opposite to each other in a first direction, the winding unit is disposed between the first outer magnetic core and the second outer magnetic core, and the coil winding is disposed around the winding unit. The winding unit includes a magnetic core middle column and at least two air-gaps distributed in the first direction. The inductor can improve the operating efficiency of the power factor correction circuit and can optimize efficiency of the power supply system in the light load phase.

公开(公告)号：US20250055367A1

公开(公告)日：2025-02-13

申请号：US18929829

申请日：2024-10-29

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Kexin SUN ,  Dongsheng ZHAO ,  Bo Li ,  Yongpan QIANG ,  Chuangpeng LI

IPC: H02M1/42 ,  H02M1/00 ,  H02M1/36 ,  H02M7/219

Abstract: A power conversion apparatus, a control apparatus, and a switch-mode power supply, which may be used in the field of power supply technologies. A PPC inductor and a switch unit in a PPC circuit are reused in a hold-up time prolonging circuit, so that only at least one capacitor and at least one switch unit need to be added. Therefore, a quantity of newly added components is reduced, and costs are reduced.

公开(公告)号：US20220149651A1

公开(公告)日：2022-05-12

申请号：US17582962

申请日：2022-01-24

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Dongsheng ZHAO ,  Jianli TONG ,  Chuangpeng LI

IPC: H02J9/06 ,  H02M3/335

Abstract: A power supply apparatus includes a switching circuit including a switcher, a first input terminal, a second input terminal, and an output terminal, the first input terminal is configured to receive a first voltage provided by a first power supply, the second input terminal is configured to receive a second voltage provided by a second power supply, and the switcher is configured to control the output terminal to be connected to the first input terminal or control the output terminal to be connected to the second input terminal; and a converting circuit including an input terminal connected to the output terminal of the switching circuit, an output terminal connected to an electrical device, and the converting circuit is configured to receive the first or the second voltage, convert the received first second voltage into a third voltage, and output the third voltage through the output terminal of the converting circuit.