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Analysis and design of series-parallel resonant power supply

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1 Author(s)
A. K. S. Bhat ; Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

A modified series-parallel high-frequency resonant DC/DC converter configuration is proposed. A simplified steady-state analysis of the converter, including the effect of a high-frequency transformer using complex circuit analysis, is presented. Based on the analysis, a simple design procedure is given. The effect of magnetizing inductances of the high-frequency transformer on the performance of the converter is discussed. Detailed experimental results obtained from a MOSFET (metal-oxide-semiconductor field-effect-transistor)-based 1-kW converter are presented to verify the analysis. The converter presented has almost constant efficiency from full load to quarter load, and the converter has load short circuit capability

Published in:

IEEE Transactions on Aerospace and Electronic Systems  (Volume:28 ,  Issue: 1 )