2012 Volume 132 Issue 6 Pages 682-683
The influence of a lumped snubber capacitor on an input current in the single-phase full-bridge boost rectifier is studied. The prototype, using two dual-switch power modules equipped with insulated-gate bipolar transistors and freewheeling diodes, operates in the continuous conduction mode under the current-mode control. The experimental results confirm that a relatively small lumped snubber capacitor contributes to the sinusoidal input current with a near-unity power factor.
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