公开(公告)号：US20220368245A1

公开(公告)日：2022-11-17

申请号：US17713048

申请日：2022-04-04

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Jeong Eon PARK ,  Byoung Hee LEE

IPC: H02M7/219 ,  H02M1/42 ,  H02M3/335

Abstract: A power system circuit apparatus is provided, which includes a first transformer having a Y-Y connection structure and configured to receive and transform three-phase AC power and output the transformed result, a first controlled rectifier configured to rectify an output voltage of the first transformer and output the rectified result; a second transformer having a Y-delta connection structure and configured to receive and transform the three-phase AC power and output the transformed result; a second controlled rectifier configured to rectify an output voltage of the second transformer and output the rectified result; and an output unit configured to add the output of the first controlled rectifier and the output of the second controlled rectifier and output a resultant sum. Accordingly, there is an effect of reducing the output current ripple and thus reducing the loss compared to the related method.