公开(公告)号：US20250070638A1

公开(公告)日：2025-02-27

申请号：US18726082

申请日：2022-12-29

Applicant: ZTE CORPORATION

Inventor： Linguo WANG ,  Wei GAO ,  Junjie ZHU ,  Zhongyin GUO ,  Hao WANG ,  Bin ZHANG

IPC: H02M1/00 ,  H02M1/34 ,  H02M3/335

Abstract: A soft switch circuit, comprising switch voltage end A, main inductor L and second voltage end B. Switch voltage end A is electrically connected to first end of main inductor L; and second voltage end B is electrically connected to second end of main inductor L. Soft switch circuit further comprises auxiliary module (100) and first voltage end C, wherein first end of auxiliary module (100) is electrically connected to switch voltage end A; and second end of the auxiliary module (100) is electrically connected to first voltage end C. Auxiliary module (100) is used for charging auxiliary module (100) by using first voltage input by means of first voltage end C; and auxiliary module is further used for performing discharging to the switch voltage end A. Further provided are a power source assembly comprising a soft switch circuit, and a method for controlling a soft switch circuit.

公开(公告)号：US20240313629A1

公开(公告)日：2024-09-19

申请号：US18681213

申请日：2021-12-06

Applicant: ZTE Corporation

Inventor： Linguo WANG ,  Junjie ZHU ,  Hao WANG

IPC: H02M1/00 ,  H02M3/158

CPC classification number: H02M1/0058 ,  H02M1/0064 ,  H02M3/1582

Abstract: The present disclosure relates to the field of circuit design. The embodiments of the present disclosure provide a soft switch circuit, a circuit board assembly, and a switch power supply. The soft switch circuit includes a power supply, a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor, a capacitor, a main inductor, an auxiliary switch transistor, an auxiliary inductor, and a control unit, wherein the control unit is configured to: if the current of the main inductor is positive, turn on the auxiliary switch transistor before the first switch transistor and the fourth switch transistor are turned on; and if the current of the main inductor is negative, turn on the auxiliary switch transistor before the second switch transistor and the third switch transistor are turned on.