公开(公告)号：US11784577B2

公开(公告)日：2023-10-10

申请号：US16926516

申请日：2020-07-10

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yushan Li ,  Heping Dai ,  Dianbo Fu

IPC: H02M7/217 ,  H02M3/158 ,  H03F3/217 ,  H03F1/02 ,  H03F3/24 ,  H02M1/00

CPC classification number: H02M7/2176 ,  H02M3/158 ,  H03F1/0227 ,  H03F1/0266 ,  H03F3/2173 ,  H03F3/245 ,  H02M1/008 ,  H02M1/0045

Abstract: A system includes a current-mode switcher configured to provide a direct current (DC) voltage for a noise sensitive load, and a linear amplifier connected to an output of the current-mode switcher, the linear amplifier configured to draw a reduced supply voltage through at least one power conversion device that is coupled between a power source and the linear amplifier.

公开(公告)号：US20220294347A1

公开(公告)日：2022-09-15

申请号：US17664467

申请日：2022-05-23

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Dianbo Fu ,  Heping Dai

IPC: H02M3/158 ,  H02M1/08

Abstract: A multi-level converter includes a first blocking device, a second blocking device, a first switching element and a second switching element connected in series between an output terminal of the multi-level converter and ground, a first soft switching apparatus comprising a first auxiliary switch and a first transformer, wherein the first auxiliary switch and the first transformer are configured the first switching element is of zero voltage switching, and the first auxiliary switch is of zero current switching, and a second soft switching apparatus comprising a second auxiliary switch and a second transformer, wherein the second auxiliary switch and the second transformer are configured the second switching element is of zero voltage switching, and the second auxiliary switch is of zero current switching.

公开(公告)号：US20220190714A1

公开(公告)日：2022-06-16

申请号：US17685680

申请日：2022-03-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Liming Ye ,  Heping Dai ,  Dianbo Fu

IPC: H02M3/07 ,  H02M3/158 ,  H02M1/00

Abstract: A system includes a first switched-capacitor converter including a plurality of switches connected in series, a second switched-capacitor converter, and a third switched-capacitor converter connected in parallel with the second switched-capacitor converter between a common node of two switches of the plurality of switches and a load, the second switched-capacitor converter and the third switched-capacitor converter both including inductors.