A new family of full-bridge ZVS converters

Author

Jang, Yungtaek ; Jovanovic, Milan M.

Author_Institution

Power Electron. Lab., DELTA Products Corp., Res. Triangle Park, NC, USA

Volume

19

Issue

3

fYear

2004

fDate

5/1/2004 12:00:00 AM

Firstpage

701

Lastpage

708

Abstract

A family of soft-switched, full-bridge (FB) pulse-width-modulated (PWM) converters that feature zero-voltage-switching (ZVS) of all bridge switches over a wide range of input voltage and output load with minimal duty cycle loss and circulating current is described. The ZVS of primary switches is achieved by employing two magnetic components whose volt-second products change in the opposite directions with a change of phase shift between the two bridge legs. One magnetic component is a transformer while the other magnetic component is either a coupled inductor or a single-winding inductor. The transformer is used to provide isolated output(s), whereas the inductor is used to store energy for ZVS.

Keywords

PWM power convertors; bridge circuits; inductors; switching convertors; transformer windings; PWM converter; ZVS converters; circulating current; coupled inductor; duty cycle loss; full-bridge zero voltage switching converters; phase shift; pulse width modulated converters; single-winding inductor; soft switching; transformer; Bridge circuits; Couplings; Inductors; Leg; Magnetic switching; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Zero voltage switching; Constant-frequency; coupled inductor; full-bridge; phase shift; zero voltage switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2004.826493

Filename

1296746