Patent ID: 8891260
Filing Date: 2014-11-18
Classification: H02M,H03K

Abstract:
1. A power converter comprising: a first power supply line; a second power supply line applied with a potential lower than that of said first power supply line; a plurality of input ends connected with an AC power source; a first switching element for connecting/disconnecting one of said plurality of input ends and at least one of either said first or second power supply line; a second switching element arranged between said first and second power supply lines; a power supply unit having two ends for supporting a DC voltage, being connected to said second switching element on said first or second power supply line side, said power supply unit serving as an operation power supply for outputting a switch signal to said second switching element; a capacitor including one end connected to a point between said first switching element and said one of said plurality of input ends and the other end connected to one end on a high potential side of said power supply unit, said capacitor serving as an operation power supply for outputting a switch signal to said first switching element; a voltage adjustment unit for adjusting a voltage across both ends of said capacitor.