Patent ID: 8269370

Claim:
A power converter comprising: a rectifier circuit that rectifies an input current from an alternating-current power supply and outputs a direct-current voltage between a first power-supply line and a second power-supply line, so as to apply said direct-current voltage to a first load; a capacitor connected between said first power-supply line and said second power-supply line; and a switching power-supply circuit connected between said first power-supply line and said second power-supply line, said switching power-supply circuit performing a switching operation with a duty based on a first current flowing in said first power-supply line, to supply power to a second load from a high-frequency component of said first current with respect to a fundamental frequency of said input current, wherein said switching power-supply circuit is connected to said second load on an output side thereof, and said switching power-supply circuit is connected to a third power-supply line and a fourth power-supply line each of which branching from said first power-supply line and said second power-supply line on the input side thereof.