Patent ID: 7129813

Claim:
A power source device comprising a primary winding wound on a core by means of an insulator, a first secondary winding adjacent to the primary winding and being disposed at its one side, a second secondary winding adjacent to the primary winding and being disposed at the other side, a primary input terminal for the primary winding, a secondary high tension terminal for the first secondary winding, a secondary high tension terminal for the second secondary winding, and a ground terminal for the second secondary winding; wherein the primary winding is connected to the primary input terminal and the lead wire of one end of the first secondary winding is connected to the secondary high tension terminal for the first secondary winding, and the lead wire of the other end of the first secondary winding is connected to the ground terminal for the first secondary winding, and the lead wire of one end of the second secondary winding is connected to the ground terminal for the second secondary winding, and a core is disposed inside of said each winding, and the secondary windings disposed at both sides of the primary winding constitute a plurality of outputs, and the commutating capacitor is connected to the primary winding of a wound rotor transformer to provide a primary side resonance circuit, and a self commutating circuit that self commutates with the primary side resonance frequency on the basis of the feedback signal of the primary side resonance voltage of the wound-rotor transformer is connected to the primary winding.