Patent ID: 6279558
Filing Date: 2001-08-28
Classification: F02P

Abstract:
An ignition apparatus of an internal combustion engine, comprising:a generator that has a primary coil and a secondary coil that generates an induced voltage in the secondary coil by using an induced current that flows through the primary coil based on rotation of an output shaft of the internal combustion engine;means for generating the induced voltage in the secondary coil by discontinuing the induced current and for applying the induced voltage to an ignition plug of the internal combustion engine;two semiconductor switching elements connected to the opposite ends of the primary coil, each of the semiconductor switching elements controlling one of discontinuation and conduction of a current through the primary coil; andelement drive signal generation means for generating a signal that switches each of the semiconductor switching elements on and off based on the rotation of the output shaft,the element drive signal generation means generating an element drive signal so that each of the semiconductor switching elements switches from an on-state to an off-state at a timing at which ignition of the ignition plug is to be performed.