Title :
An Interleaved Flyback Converter Featured With Zero-Voltage Transition
Author :
Hsieh, Yao-Ching ; Chen, Ming-Ren ; Cheng, Hung-Liang
Author_Institution :
Dept. of Electr. Eng., Nat. Dong Hwa Univ., Hualien, Taiwan
Abstract :
This paper proposes an interleaved flyback converter, which is remarked with zero-voltage-switched active switches and reduced reverse-recovery loss on the rectifying diodes. The converter is composed of two parallel-operated identical flyback converters and an auxiliary inductor shunted between the diodes. This converter can provide up to 500 W power with highest efficiency as high as 91%. In addition, burst-mode control is equipped to drive the converter at low load. Even at 50-W output, the efficiency is higher than 83%.
Keywords :
diodes; power inductors; rectifying circuits; switches; zero voltage switching; auxiliary inductor; burst-mode control; interleaved flyback converter; parallel-operated identical flyback converters; power 5 W; rectifying diodes; reverse-recovery loss; zero-voltage transition; zero-voltage-switched active switches; Circuit faults; Inductors; Inverters; Light emitting diodes; Photovoltaic systems; Switches; Switching converters; Switching loss; Transformer cores; Zero voltage switching; Burst-mode operation; interleaved flyback converter; zero-voltage switching (ZVS);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2010.2051817
