Abstract
Soft-switched single-phase voltage-doubler rectifier using pump circuits is presented. The active power devices in the full-bridge resonant switch are allowed to turn on and off under zero-current switching (ZCS) and zero-voltage switching (ZVS) conditions, respectively. The switching transition is mainly governed by a series resonance. The experimental prototype employing two dual-switch power modules with insulated-gate bipolar transistors is implemented to investigate the operation under the pulse-width modulation. The experimental results confirm that the input current can be waveshaped sinusoidally with a near-unity power factor.
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