Title :
A novel dual resonant tank for ZVT DC-DC converters with synchronous rectifier
Author :
Yang, H.T. ; Liao, J.T. ; Cheng, X.Y.
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
DC-DC converters, widely used in industry, are much more needed to supply higher power with higher efficiency in various applications. However, the conventional DC-DC converters cannot achieve higher efficiency owing to the switching and conduction losses. Thus, this paper aims at reducing these losses of conventional DC-DC converters by using zero-voltage-switching (ZVS), zero-current-switching (ZCS), and Synchronous Rectification (SR) with reduced reverse recovery time of junction diodes. A novel dual resonant tank for DC-DC converters with SR is proposed on the basis of existing topologies. To verify the proposed circuit, a prototype converter is implemented in this paper. The simulated and experimental results obtained have demonstrated that the proposed dual resonant tank can be practically implemented in conventional DC-DC converters to provide better performance as compared with existing topologies.
Keywords :
DC-DC power convertors; losses; rectifiers; switching convertors; zero current switching; zero voltage switching; DC-DC converters; ZVT; conduction losses; dual resonant tank; junction diodes; power supply; prototype converter; switching losses; synchronous rectifier; zero current switching; zero voltage switching; Capacitors; Equivalent circuits; Inductors; Strontium; Switches; Switching loss; Zero voltage switching; Reverse recovery time; Synchronous rectifier; Zero-voltage-switching; Zero-voltage-transition; Zerocurrent-switching;
Conference_Titel :
PowerTech, 2011 IEEE Trondheim
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-8419-5
Electronic_ISBN :
978-1-4244-8417-1
DOI :
10.1109/PTC.2011.6019205
