Analysis and design considerations of a load and line independent zero voltage switching full bridge DC/DC converter topology

Author

Jain, Praveen K. ; Kang, Wen ; Soin, Harry ; Xi, Youhao

Author_Institution

Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

17

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

649

Lastpage

657

Abstract

The analysis and design of a zero voltage switching (ZVS) full bridge DC/DC power converter topology is presented in this paper. The converter topology presented here employs an asymmetrical auxiliary circuit consisting of a few passive components. With this auxiliary circuit, the full bridge converter can achieve ZVS independent of line and load conditions. The operating principle of the circuit is demonstrated, and the steady state analysis is performed. Based on the analysis, a criterion for optimal design is given. Experiment and simulation on a 350-400 V to 55 V, 500 W prototype converter operated at 100 kHz verify the design and show an overall efficiency of greater than 97% at full load.

Keywords

DC-DC power convertors; bridge circuits; circuit optimisation; load (electric); switching circuits; 100 kHz; 350 to 400 V; 500 W; 55 V; 97 percent; ZVS full-bridge DC/DC power converter topology; asymmetrical auxiliary circuit; converter topology; operating principle; optimal design criteria; passive components; steady state analysis; zero voltage switching; Bridge circuits; Circuit simulation; Circuit topology; DC-DC power converters; Independent component analysis; Performance analysis; Steady-state; Switching converters; Virtual prototyping; Zero voltage switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2002.802181

Filename

1035139