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A new constant frequency phase-shifted PWM zero-voltage switching DC-DC converter incorporating non-controlled saturable reactors

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4 Author(s)
S. Hamada ; Sansha Electr. Manuf. Co. Ltd., Osaka, Japan ; T. Kanazawa ; Y. Ogino ; M. Nakaoka

The authors describe a power converter which incorporates saturable reactors as nonlinear elements to perform effective zero-voltage switching under large load and wide voltage-regulation ranges. Its steady-state characteristics are evaluated and discussed on the basis of computer simulation and experiments carried out with a 0.5-kW, 500-kHz breadboard. A power conversion efficiency of more than 88% was obtained. The results demonstrated that electromagnetic interference can be reduced

Published in:

IEEE Transactions on Magnetics  (Volume:25 ,  Issue: 5 )