Internal combustion engine use ignition device

An internal combustion engine use ignition device, comprising:

• an ignition coil which has a primary coil and a secondary coil, which are wound around a core,
• a superimpose circuit which generates an output energy, which is to be superimposed with respect to a secondary current, produced in the secondary coil by the primary coil,
• a first switch element which is connected to the primary coil and turns on or off a current to the primary coil,
• a second switch element which is connected to the superimpose circuit and turns on or off a current to the superimpose circuit, in response to an operation of the first switch element, and
• a common input terminal which receives a first driving signal for driving the first switch element and a second driving signal for driving the second switch element,
• wherein an operation of the second switch element is stopped during an operation of the first switch element, and an operation of the first switch element is stopped during an operation of the second switch element,
• wherein the primary coil is divided into a first primary coil and a second primary coil, and the second primary coil is the superimpose circuit,
• wherein the first switch element is connected to a signal line, and the ignition device comprises a third switch element which stops a drive of the first switch element, by employing a voltage as a power source, where the voltage is generated in a resistance which is disposed on a power feeding pathway of the secondary current.

An ignition device comprising:

• an ignition coil which has a primary coil and a secondary coil, which are wound around a core;
• a superimpose circuit which generates an output energy, which is to be superimposed with respect to a secondary current of the secondary coil, produced by a first current flowing in the primary coil;
• a first switch element which is connected to the primary coil and turns on or off a current to the primary coil;
• a secondary current pathway resistance which is disposed on a pathway of the secondary current and generates a voltage, when the secondary current is produced,
• a second switch element which is connected to the superimpose circuit and turns on or off a current to the superimpose circuit, in response to an operation of the first switch element;
• and
• a common input terminal which receives a first driving signal for driving the first switch element and a second driving signal for driving the second switch element,
• wherein an operation of the second switch element is stopped during an operation of the first switch element,
• the second switch element is turned on by the voltage generated in the secondary current pathway resistance,
• and an operation of the first switch element is stopped during an operation of the second switch element, and
• wherein the primary coil is divided into a first primary coil and a second primary coil, and the second primary coil is the superimpose circuit.