Title :
Resonant synchronous rectification for high frequency DC/DC converter
Author :
Xu, Ming ; Zhou, Jinghai ; Qiu, Yang ; Yao, Kaiwei ; Lee, Fred C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Polytech Inst. & State Univ., Blacksburg, VA, USA
Abstract :
Resonant synchronous rectification for high frequency low voltage high current DC/DC converter is proposed in this paper. It features soft-switching and no body-diode conduction, which is very promising for high switching frequency operation. A family of isolated soft-switching DC/DC converters and two non-isolated soft-switching DC/DC converters implementing the resonant synchronous rectification are proposed in this paper. A prototype of 1 MHz 48 V-to-1.2 V/28 A 1/16 brick DC-DC converter demonstrates the 84% overall efficiency.
Keywords :
DC-DC power convertors; rectifying circuits; switching convertors; 1 MHz; 28 A; 48 to 1.2 V; 84 percent; high frequency DC/DC converter; high switching frequency operation; no body-diode conduction; resonant synchronous rectification; soft-switching; DC-DC power converters; Delay effects; Driver circuits; Frequency conversion; MOSFETs; Rectifiers; Resonance; Semiconductor diodes; Switches; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1295924
