Title :
A novel quasi-resonant phase-shifted full-bridge converter for 48 V power pods
Author :
Ren, Yuancheng ; Xu, Ming ; Meng, Yu ; Lee, Fred C.
Author_Institution :
Center for Power Electron. Syst., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
This paper proposes a novel quasi-resonant phase-shifted full-bridge (QR-PS-FB) for high-frequency 48 V power pods. The topology can achieve a complete lack of body diode loss. It can also achieve soft switching at primary switches. Besides that, it can significantly reduce the ringing without any additional components. The theoretical analysis and simulation waveforms are provided. 1 MHz, 1.2 V/70 A hardware is built and experimental results are also provided.
Keywords :
bridge circuits; computer power supplies; resonant power convertors; 1 MHz; 1.2 V; 48 V; 70 A; power pods; primary switches; quasi-resonant phase-shifted full-bridge converter; soft switching; Bridge circuits; Energy consumption; Microprocessors; Power system transients; Pulse width modulation; Switching frequency; Topology; Transient response; Voltage; Workstations;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2003. APEC '03. Eighteenth Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-7768-0
DOI :
10.1109/APEC.2003.1179247
