Twin-Buck Converter With Zero-Voltage Transition

Author

Moo, Chin S. ; Chen, Yu J. ; Cheng, Hung L. ; Hsieh, Yao C.

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan

Volume

58

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

2366

Lastpage

2371

Abstract

This paper proposes a twin-buck converter with zero-voltage transition (ZVT). The converter comprises two identical buck conversion units employing power MOSFETs as the active power switches with an interleaved inductor. The ZVT is accomplished by resonating the currents between the interleaved inductor and the parasitic capacitances of the power MOSFETs. The detailed circuit operations and analysis are provided. A laboratory circuit rated at 300 W is designed and tested. Experimental results show that the switching losses can be effectively reduced by ZVT of the active power switches, accompanied by the reduced reverse recovery loss of freewheeling diodes.

Keywords

power MOSFET; power convertors; zero voltage switching; active power switch; buck conversion unit; freewheeling diodes; interleaved inductor; parasitic capacitance; power MOSFET; reduced reverse recovery loss; switching loss; twin-buck converter; zero-voltage transition; Converters; Inductors; MOSFETs; Power generation; Switches; Switching frequency; Voltage control; Buck converter; interleaved inductor; zero-voltage transition (ZVT);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2010.2069072

Filename

5555999