Abstract
A single-phase voltage-tripler rectifier operating in the switch-mode is studied. This is based on a diode pump circuit, in which the voltage across the boost capacitor adds to the supply to pump twice the peak supply voltage onto the output capacitor. An only active power switching device also provides the necessary control over the current. The experimental prototype using an insulated-gate bipolar transistor is implemented to investigate the operation under the current-controlled pulse-width modulation. The experimental results confirm that the input current can almost be waveshaped sinusoidally with a near-unity power factor.
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