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Experimental approach to likely optimizing the transition and output inductors for activating the dynamic behavior of the phase-shifted zero-voltage-switching PWM full-bridge converter

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2 Author(s)
Hung-I Hsieh ; Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Ching-Cheng Teng

A likely optimization of the transition and output inductors for activating the dynamic behavior of the phase-shifted zero-voltage-switching pulse-width modulated full-bridge (ZVS-PWM FB) converter is introduced. Five conversion models, including one energy-delivery state, two resonances, one energy-holding state, and one transition state etc., are explored and analyzed. Interestingly, the transition inductor is dominant only for the energy-transition period in the H-loop and the other four dynamics are mainly subject to the output inductor when the turns-ratio of the main transformer is greater than two. Design consideration for estimating the mentioned inductors is conducted and implemented by a 1-kW ZVS-PWM FB converter to assess the predicted dynamics.

Published in:

IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]  (Volume:1 )

Date of Conference:

5-8 Nov. 2002