A New PWM ZVS Full-Bridge Converter

A soft-switched full-bridge (FB) converter that features zero-voltage-switching (ZVS) of the bridge switches over a wide output-load range is introduced. The proposed converter achieves ZVS with substantially reduced duty-cycle loss and circulating current. The control of the proposed converter can...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2007-05, Vol.22 (3), p.987-994
Main Authors: Jang, Y., Jovanovic, M.M.
Format: Article
Language:English
Subjects:
Applied sciences
Bridge circuits
Circuit properties
Circuits
Circulating
Connection and protection apparatus
Converters
Convertors
Direct current
Electric currents
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical machines
Electronic circuits
Electronic switching systems
Electronics
Exact sciences and technology
Full bridge (FB) converter
Inductance
Inductors
Phase modulation
phase shift (PS)
Power electronics, power supplies
Prototypes
Pulse duration modulation
Pulse width modulation
Pulse width modulation converters
pulsewidth modulated (PWM)
Snubbers
Switches
Switching converters
Switching, multiplexing, switched capacity circuits
Topology
Zero voltage switching
zero voltage switching (ZVS)
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Description
Summary:A soft-switched full-bridge (FB) converter that features zero-voltage-switching (ZVS) of the bridge switches over a wide output-load range is introduced. The proposed converter achieves ZVS with substantially reduced duty-cycle loss and circulating current. The control of the proposed converter can be implemented either with the phase-shift or pulsewidth modulated (PWM) technique. The performance of the proposed topology was verified on a 2-kW (48-V/40-A) experimental PWM FB converter prototype operating at 120 kHz from a 380-V dc input
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2007.897008