Patent ID: 7825357

Claim:
A power supply which supplies an AC electric current to a coil of a heating unit employing an electromagnetic induced heating method via a connector connecting a plurality of wires, comprising: a first electric current supply device which supplies an electric current to the coil via a first wire; a second electric current supply device which supplies an electric current to the coil via a second wire; wherein the electric currents supplied to the coil by said first electric current supply device and said second electric current supply device are fed back to said first electric current supply device and said second electric current supply device via a third wire and a fourth wire which diverge from the coil; an abnormality monitoring device which monitors an abnormality of supply of an electric current to the coil or an abnormality of the third wire or the fourth wire a control device which controls to stop driving said first electric current supply device and said second electric current supply device in accordance with a monitoring result by said abnormality monitoring device.