A novel secondary clamping circuit topology for soft switching full-bridge PWM DC/DC converter

Author

Choo, Byeong-Ho ; Lee, Byoung-kuk ; Yoo, Sang-Bong ; Hyun, Dong-seok

Author_Institution

Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea

Volume

2

fYear

1998

fDate

15-19 Feb 1998

Firstpage

840

Abstract

This paper proposes a novel secondary clamping circuit for soft switching FB (full-Bridge) PWM DC/DC power converter. The proposed circuit eliminates the reflected output current which is reflected from the secondary side to the primary side so that it reduces the needless conduction losses of the primary side during the current circulating mode. Also, it ensures the zero-voltage/zero-current switching of the leading/lagging leg switches. The characteristics of the proposed clamping circuit are investigated and the validity is verified by the simulation and experimental results

Keywords

DC-DC power convertors; PWM power convertors; bridge circuits; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; switching circuits; circuit characteristics; conduction losses; current circulating mode; experiments; full-bridge PWM DC/DC power converter; lagging leg switches; leading leg switches; primary side; reflected output current elimination; secondary clamping circuit topology; secondary side; simulation; soft-switching; zero current switching; zero voltage switching; Circuit simulation; Circuit topology; Clamps; Leg; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Switching converters; Zero current switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual

Conference_Location

Anaheim, CA

Print_ISBN

0-7803-4340-9

Type

conf

DOI

10.1109/APEC.1998.653996

Filename

653996