Analysis, design, and experimental results of a 1-kW ZVS-FB-PWM converter employing magamp secondary-side control

Author

Watson, Robert ; Lee, Fred C.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

45

Issue

5

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

806

Lastpage

814

Abstract

The design and breadboard implementation of a constant-frequency, zero-voltage-switched, full-bridge pulsewidth modulation converter delivering a 12-V-at-1-kW output from a 350-450-VDC input bus is described. The zero-voltage switching characteristic is maintained over a wide operating range by utilizing the transformer magnetizing inductance as an energy storage element. Output voltage regulation is accomplished entirely on the secondary side through magamp control, thus simplifying the methods used for maintaining control and isolation

Keywords

PWM power convertors; bridge circuits; energy storage; magnetic amplifiers; power transformers; switching circuits; transformer windings; voltage control; 1 kW; 12 V; 350 to 450 V; breadboard implementation; design; energy storage element; full-bridge PWM power converter; magamp secondary-side control; operating range; output voltage regulation; transformer magnetizing inductance; zero voltage switching; Bridge circuits; Energy storage; Inductance; Magnetic resonance; Magnetic switching; Pulse width modulation; Pulse width modulation converters; Switches; Voltage control; Zero voltage switching;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.720338

Filename

720338