A new current-fed, isolated PWM DC-DC converter

Author

Mantovanelli, Peter ; Barbi, Ivo

Author_Institution

Dept. of Electr. Eng., Univ. Federal de Santa Catarina, Florianapolis, Brazil

Volume

11

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

431

Lastpage

438

Abstract

This paper introduces a new current-fed DC-DC power converter circuit whose features are as follows: (1) two active switches gated in a complementary and asymmetrical way, connected to the same ground; (2) inherent high reliability provided by the input boost inductor; (3) isolation by a high-frequency transformer; and (4) purely capacitive output filter. Circuit operation, theoretical analysis, and design procedure are presented. Experimental results taken from a prototype, rated at 48 V/300 W, are also included in the paper to demonstrate the validity of the theoretical analysis

Keywords

DC-DC power convertors; PWM power convertors; circuit reliability; high-frequency transformers; power capacitors; power filters; power semiconductor diodes; power semiconductor switches; power transformers; switching circuits; 300 W; 48 V; active switches; current-fed isolated PWM DC-DC power convertor; high-frequency transformer; input boost inductor; purely capacitive output filter; reliability; Circuit analysis; DC-DC power converters; Filters; Inductors; Pulse width modulation; Pulse width modulation converters; Switched capacitor circuits; Switches; Switching circuits; Switching converters;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.491636

Filename

491636