MULTIPHASE VOLTAGE TYPE CONVERTER

摘要

PROBLEM TO BE SOLVED: To obtain a power supply current having a sinusoidal waveform regardless of an output voltage. SOLUTION: An AC switch 2 is provided between a power supply 6 and an input part of a diode bridge 3. Reactors 1 connected to each other in star connection are connected to the input part of the diode bridge 3. By turning on and off the AC switch 2 so as to make the currents of the reactors 1 intermittent, sinusoidal waveform of the input current can be obtained even if a DC voltage is lower than the voltage of a conventional constitution.