| 摘要 |
PROBLEM TO BE SOLVED: To provide an internal combustion engine igniter capable of preventing electric energy of an energy input circuit from influencing the other devices via a battery voltage supply line even if the energy input circuit fails.SOLUTION: If abnormality determination means 28 determines a failure in an energy input circuit 6, output stop switching means 29 switches a state of an energy input line &bgr; for inputting electric energy from the energy input circuit 6 to a primary coil 3 to an OFF-state. The input of the energy to the primary coil 3 is thereby stopped. Owing to this, even if the energy input circuit 6 fails, it is possible to avoid a problem that the input of the electric energy continues and improve reliability. |
