Title :
A precise ZVS range calculation method for full bridge converter
Author :
Yan, Chao ; Wu, Hongyang ; Zeng, Jianhong ; Jianping, Ying ; Tan, Jingtao
Author_Institution :
Delta Power Electron. Center, Shanghai, China
Abstract :
This paper presents a more precise ZVS range calculation method for ZVS full-bridge converter. Primary current downward step during the leading leg transition is mainly analyzed. This downward step often ignored, caused by the rectifier junction capacitance discharging, will significantly influence the ZVS range of the lagging leg power switch. An 800 W ZVS full bridge converter prototype is constructed and experimental results verified the validity of the proposed method.
Keywords :
DC-DC power convertors; bridge circuits; capacitance; switching convertors; 800 W; ZVS range calculation method; full bridge converter; leg power switch; primary current downward step; rectifier junction capacitance; Bridge circuits; Capacitance; Inductors; Leg; Magnetic circuits; Magnetic separation; Rectifiers; Switches; Virtual colonoscopy; Zero voltage switching;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1217732
