Current-fed full-bridge boost converter with zero current switching for high voltage applications

Author

Chen, R.Y. ; Lin, R.L. ; Liang, T.J. ; Chen, J.F. ; Tseng, K.C.

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

3

fYear

2005

fDate

2-6 Oct. 2005

Firstpage

2000

Abstract

This paper presents a current-fed full-bridge boost converter with zero current switching (ZCS) based on constant on-time control for high voltage applications. The proposed converter utilizes the leakage inductor and the winding parasitic capacitor resonant tank to achieve ZCS. In order to achieve ZCS under wide load range, the turn-on time of the full-bridge boost converter is kept constant and the output voltage is regulated via frequency modulation. Finally, a laboratory prototype converter with 1 kV/600 W is implemented to verify the ZCS performance of the proposed converter. The highest efficiency of the proposed converter is 92%.

Keywords

bridge circuits; frequency modulation; power capacitors; switching convertors; zero current switching; 1 kV; 600 W; 92 percent; ZCS; constant on-time control; current-fed full-bridge boost converter; frequency modulation; high voltage applications; leakage inductor; winding parasitic capacitor resonant tank; zero current switching; Capacitors; Frequency modulation; Inductors; Laboratories; Prototypes; Resonance; Switching converters; Voltage control; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005

ISSN

0197-2618

Print_ISBN

0-7803-9208-6

Type

conf

DOI

10.1109/IAS.2005.1518722

Filename

1518722