A Current-Doubler Rectifier with Coupled Inductors for High Step-Down Applications

Author

Wu, T.-F. ; Tsai, Cheng-Ting ; Chen, Y.M. ; Shen, C.-L.

Author_Institution

Dept. of Electr. Eng., National Chung Cheng Univ.

fYear

2006

fDate

18-22 June 2006

Firstpage

1

Lastpage

6

Abstract

In this paper, a current-doubler rectifier with coupled inductors for high step-down applications is proposed. The proposed current-doubler rectifier includes two sets of coupled inductors, which can extend duty ratio to reduce the peak current through the isolation transformer and lower output current ripple. Additionally, the leakage inductors of the coupled inductors can limit current slew rate of the rectifier diodes, reducing reverse recovery loss significantly. In this study, a full-bridge phase-shift converter with the proposed rectifier, input voltage of 400 V, output voltage of 12 V, and full load power of 500 W was built, from which experimental measurements have shown that the efficiency can reach as high as 91% under full load condition

Keywords

inductors; power convertors; rectifiers; 12 V; 400 V; 500 W; coupled inductors; current-doubler rectifier; full-bridge phase-shift converter; isolation transformer; leakage inductors; output current ripple; peak current reduction; rectifier diodes; reverse recovery loss reduction; Current measurement; DC-DC power converters; Diodes; Filters; Inductors; Power measurement; Prototypes; Pulse width modulation; Rectifiers; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE

Conference_Location

Jeju

ISSN

0275-9306

Print_ISBN

0-7803-9716-9

Type

conf

DOI

10.1109/PESC.2006.1712256

Filename

1712256