公开(公告)号：US20230128049A1

公开(公告)日：2023-04-27

申请号：US17510299

申请日：2021-10-25

Applicant: ABB Schweiz AG

Inventor： Yuzhi Zhang ,  Xiaoqing Song ,  Veerakumar Bose

IPC: H03K17/60 ,  H03K17/72 ,  H01L29/74 ,  H03K17/04 ,  H03K17/06 ,  H02J3/00

Abstract: Disclosed herein is a hybrid resonant capacitor circuit including a first capacitor configured to discharge resonant current to interrupt a load current to a switch in parallel with the hybrid resonant capacitor circuit, a second capacitor coupled in parallel with the first capacitor, wherein the second capacitor is configured to transfer energy stored in the second capacitor to the first capacitor after discharge of the resonant current from the first capacitor, and a current limiter coupled in series with the second capacitor. A static transfer switch including a thyristor switch and the hybrid resonant capacitor circuit is also disclosed herein, as is a method for facilitating multiple consecutive voltage source transfers between a first voltage source and a second voltage source powering a load, using the hybrid resonant capacitor circuit.