公开(公告)号：US20200279686A1

公开(公告)日：2020-09-03

申请号：US16878178

申请日：2020-05-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Changsheng PEI ,  Yongfa ZHU ,  Heqian YANG ,  Jinsen CAI

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/34 ,  H01F38/14 ,  H02J50/12 ,  H02J50/40

Abstract: This application describes a coil. The coil includes an output terminal, an input terminal, and a wire-winding part that is connected between the output terminal and the input terminal. A slot is disposed on at least a part of the wire-winding part, and a depth of the slot in any direction of a cross section of the wire-winding part is less than or equal to a distance between two points that are the farthest away from each other on the cross section of the wire-winding part. The wire-winding part is a metal conductor made through spiral winding. The input terminal and the output terminal are configured to connect the wire-winding part to an external circuit.

公开(公告)号：US20250105751A1

公开(公告)日：2025-03-27

申请号：US18969614

申请日：2024-12-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongfa ZHU ,  Zhiqiang ZENG ,  Xiangyuan DENG ,  Jinsen CAI ,  Benhu LI ,  Haitao CHEN ,  Chengfeng JIANG

IPC: H02M3/335 ,  H02M1/00 ,  H02M3/00

Abstract: This disclosure provides a converter and an electronic device that incorporates the converter. The converter includes: an input terminal, a first inverter circuit, a first transformer, a first rectifier circuit, and an output terminal. The first transformer includes a first primary-side winding and a first secondary-side winding. The input terminal is connected to a first terminal of the first inverter circuit, a second terminal of the first inverter circuit is connected to the first primary-side winding, and the first rectifier circuit is connected between the first secondary-side winding and the output terminal. A third terminal of the first inverter circuit is connected to the output terminal; or a third terminal of the first inverter circuit is connected to the first secondary-side winding. In this disclosure, a loss of the converter can be reduced.

公开(公告)号：US20230344343A1

公开(公告)日：2023-10-26

申请号：US18325289

申请日：2023-05-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongfa ZHU ,  Zhiqiang ZENG ,  Jinsen CAI ,  Heqian YANG ,  Xiaowei CHEN ,  Tao DING

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009 ,  H02M1/0025 ,  H02M1/007

Abstract: This application provides a conversion circuit, a switch-mode power supply, and an electronic device. The conversion circuit mainly includes a first branch circuit and a second branch circuit. Input sides of the first branch circuit and the second branch circuit are connected in series, and output sides of the first branch circuit and the second branch circuit are connected in parallel; or input sides of the first branch circuit and the second branch circuit are connected in parallel, and output sides of the first branch circuit and the second branch circuit are connected in series. This implementation helps improve efficiency of the conversion circuit. When an inductor is disposed in the conversion circuit, a size of the inductor is further reduced, to improve integration.