Title :
Operation principles of bi-directional full-bridge DC/DC converter with unified soft-switching scheme and soft-starting capability
Author :
Wang, Kunrong ; Lee, Fred C. ; Lai, Jason
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
6/22/1905 12:00:00 AM
Abstract :
A new bi-directional dual full-bridge DC/DC converter with a unified soft-switching scheme and soft-start capability is proposed in this paper. A simple voltage clamp branch is used to limit transient voltage across the current-fed bridge and realize zero-voltage-switching (ZVS) in boost mode operation, while achieving hybrid zero-voltage/zero-current switching (ZVZCS) for the voltage-fed bridge in buck mode operation. The theory of operations including soft-start-up process is discussed in this paper
Keywords :
DC-DC power convertors; bridge circuits; switching circuits; ZVS; ZVZCS; bi-directional full-bridge DC/DC converter; boost mode; buck mode operation; current-fed bridge; operation principles; soft-start-up process; soft-starting capability; transient voltage limiting; unified soft-switching scheme; voltage clamp branch; voltage-fed bridge; zero-current switching; zero-voltage-switching; Bidirectional control; Bridge circuits; Circuit topology; Clamps; DC-DC power converters; Hafnium; Inductance; Pulse width modulation; Rectifiers; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.826092
