Title :
High switching frequency, high efficiency CLL resonant converter with synchronous rectifier
Author :
Huang, Daocheng ; Fu, Dianbo ; Lee, Fred C.
Author_Institution :
Virginia Tech, Blacksburg, VA, USA
Abstract :
In this paper, a CLL resonant tank (CLL) is presented as an attractive option in the front-end applications as DC/DC converter. This topology can achieve zero-voltage switching (ZVS) from zero load to full load, low turn off loss, ZCS for output rectifier, and easy to realize secondary rectification. A novel design methodology of CLL resonant converter is proposed based on the trade-off among efficiency, hold up time and ZVS requirement. A transformer structure for better performance in high frequency application is proposed. And current type synchronous rectifier (SR) drive scheme is used in this topology. An 800 kHz, 300 W CLL resonant converter prototype is made to verify the proposed design method.
Keywords :
DC-DC power convertors; rectifying circuits; resonant invertors; switching convertors; zero voltage switching; CLL resonant converter; CLL resonant tank circuits; DC/DC converter; frequency 800 kHz; front-end applications; power 300 W; secondary rectification; switching frequency; synchronous rectifier drive scheme; transformer structure; zero-voltage switching; CLL resonant converter; Design methodology; Synchronous Rectifier; Transformer;
Conference_Titel :
Energy Conversion Congress and Exposition, 2009. ECCE 2009. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2893-9
Electronic_ISBN :
978-1-4244-2893-9
DOI :
10.1109/ECCE.2009.5316211
