Patent ID: 7729145

Claim:
A power converter that converts an AC power outputted from a generator into a DC power and supplies it to a load, comprising: a switch unit connected between an output unit of the generator and the load; and a control unit that controls the conductive state of the switch unit; the control unit including: a triangle wave generating circuit that generates a triangle wave voltage having a constant peak voltage corresponding to each cycle of the AC power outputted from the generator, using a waveform of an AC voltage of an immediately preceding cycle; a differential circuit that inputs a voltage expressing an effective value or an average value of the voltage supplied via the switch unit to the load, and a predetermined target voltage, and generates a differential voltage between them; and a comparing circuit that compares the triangle wave voltage and the differential voltage generated by the differential circuit, generates a pulse signal that stipulates a conductive timing of the switch unit based on the comparison result, and controls the conductive state of the switch unit.