公开(公告)号：US10476376B1

公开(公告)日：2019-11-12

申请号：US16223062

申请日：2018-12-17

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Kun-Feng Chen ,  Jung-Yang Wang ,  Chin-Yu Ho

IPC: H02M1/42 ,  H02M1/14 ,  H02M1/44 ,  H02M3/335

Abstract: A high power factor converter is provided. The high power factor converter includes a rectifier, a reactive power control circuit and a converter circuit. The rectifier is utilized for receiving and converting an input AC voltage in to an input DC voltage. The reactive power control circuit is coupled to the rectifier for performing a reactive power control operation based on the input DC voltage. The converter circuit is coupled to the reactive power control circuit for converting the input DC voltage into an output voltage.

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.