Ignition device of internal combustion engine
OwnerTakashi Ito, Ryo Sato +2inventors
InventorsTakashi Ito, Ryo Sato, Ryouichi Kobayashi, Noboru Sugiura
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Abstract
A control circuit 130 carries out ON/OFF control of a primary current flowing in an ignition coil in response to an input ignition control signal. The control circuit 130 and an insulated-gate bipolar power transistor (IGBT) 110 are integrated on a monolithic silicon substrate. The control circuit 130 includes a plurality of control circuit blocks of different functions formed on the silicon substrate. The circuit functions of the control circuit blocks are enabled and disabled by changing wiring patterns.
Claims4
An ignition device of an internal combustion engine, comprising a control circuit for carrying out ON/OFF control of a primary current flowing in an ignition coil in response to an input ignition control signal, and an insulated-gate bipolar power transistor, said control circuit being integrated on a monolithic silicon substrate of said transistor,
- wherein said control circuit includes a plurality of control circuit blocks of different functions formed on said silicon substrate, and
- the circuit functions of said control circuit blocks are enabled and disabled by changing wiring patterns.
Dependencies are inferred from the claim text.