公开(公告)号：US20230361669A1

公开(公告)日：2023-11-09

申请号：US18310651

申请日：2023-05-02

Applicant: Solaredge Technologies Ltd.

Inventor： David Braginsky ,  Eado Twig

IPC: H02M1/00 ,  H02M3/158 ,  H02M7/5395

CPC classification number: H02M1/0058 ,  H02M3/158 ,  H02M7/5395

Abstract: A switching circuit may comprise first and second switch legs and a coupled inductor. The controller may operate the first and second switch legs to control a current flowing through the coupled inductor such that zero voltage switching (ZVS) may be applied to the first and second switch legs. The system may determine a switching event time of a switch in the first switch leg, and determine a switching node voltage rise event time of the first switch leg based on a voltage measured at a switching node of the first switch leg. The controller may drive one or more switches using PWM signals. For example, the controller may drive one or more switches based on determining, for a switching instance, a phase difference between a first PWM signal and a second PWM signal for generating a ripple current for ZVS.