公开(公告)号：US09847727B1

公开(公告)日：2017-12-19

申请号：US15364133

申请日：2016-11-29

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kun-Feng Chen ,  Hsuang-Chang Chiang ,  Rong-Yang Wang ,  Chin-Yu Ho

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/1582 ,  H02M3/33523 ,  H02M3/33584 ,  H02M2001/0058 ,  H02M2001/007

Abstract: A half-bridge resonant bidirectional DC-DC converter circuit comprising a half-bridge buck-boost converter and a resonant DC-DC converter. The half-bridge buck-boost converter is coupled to an external DC power source to achieve a wide input voltage range. The resonant DC-DC converter is coupled to the half-bridge buck-boost converter to act as a later stage circuit of the half-bridge buck-boost converter. The resonant DC-DC converter is used to control the direction of the bidirectional power flow and respond to the half-bridge buck-boost converter under a fixed frequency mode to convert the input of the half-bridge buck-boost converter to an induced current.