POWER CONVERTER AND POWER CONDITIONER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a power converter capable of reducing the withstand voltage of a switching element, and a power conditioner using the same.SOLUTION: A first conversion circuit 1 is electrically connected between a first input point 101 as a high-potential side of a DC power source 4 and a reference potential point 100. A second conversion circuit 2 is electrically connected between a second input point 102 as a low-potential side of the DC power source 4 and the reference potential point 100. A voltage adjusting circuit 3 is configured to adjust the magnitude of an applied voltage to the first conversion circuit 1 and the second conversion circuit 2. The voltage adjusting circuit 3 gradually increases the magnitude of the applied voltage with time lapse during a start-up period from the start of power supply from the DC power source 4 till the time when a first capacitor C1 and a second capacitor C2 are charged to defined voltages.