Patent ID: 8094470

Claim:
An inverter circuit, comprising: a first switching element; a second switching element; an output transformer, to a primary side of which current is supplied via said first switching element and said second switching element, and from a secondary side of which current is outputted to a load; a first free wheel diode which is connected in inverse parallel to said first switching element; a second free wheel diode which is connected in inverse parallel to said second switching element; a first snubber circuit, connected in parallel to said first switching element, and in which a first snubber capacitor, a first snubber diode, and a second snubber capacitor are connected in series; a second snubber circuit, connected in parallel to said second switching element, and in which a third snubber capacitor, a second snubber diode, and a fourth snubber capacitor are connected in series; a first voltage supply capacitor which applies voltage to said first switching element; a second voltage supply capacitor which applies voltage to said second switching element; a first discharge resistor, connected between said first snubber circuit and said first voltage supply capacitor, and in which a discharge current flows from said first snubber capacitor; a second discharge resistor, connected between said first snubber circuit and said second voltage supply capacitor, and in which a discharge current flows from said second snubber capacitor; a third discharge resistor, connected between said second snubber circuit and said second voltage supply capacitor, and in which a discharge current flows from said third snubber capacitor; and a fourth discharge resistor, connected between said second snubber circuit and said first voltage supply capacitor, and in which a discharge current flows from said fourth snubber capacitor.