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

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2 Author(s)
R. Watson ; Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA ; F. C. Lee

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

Published in:

IEEE Transactions on Industrial Electronics  (Volume:45 ,  Issue: 5 )