Patent ID: 8922127

Claim:
A high-frequency discharge ignition coil apparatus comprising: a primary coil for generating and accumulating magnetic flux by application of current thereto; a secondary coil for generating predetermined high voltage by releasing the accumulated energy, the secondary coil magnetically coupled with the primary coil and having one end connected to a high-voltage terminal for supplying energy to an external apparatus; a capacitor connected to the high-voltage terminal, for preventing passage of the high voltage; and an inductor connected to the capacitor and forming, together with the capacitor, a band pass filter that allows only a predetermined frequency component to pass, wherein high-frequency current is supplied from outside to the inductor, the high-frequency discharge ignition coil apparatus further comprising a current level detection device for detecting the level of current flowing in the inductor, wherein the current level detection device is placed in one package, together with the primary coil, the secondary coil, the capacitor, and the inductor.