Electronic ignition-coil control device for an internal combustion engine
Patent
·
OSTI ID:6500225
The primary winding of an ignition coil is placed in series with the collector of a switching transistor. In order to protect the transistor against overvoltages, the collector is also connected to a level comparator and the base receives a two-state control signal which is synchronous with the rotation of the engine. One input of the comparator is connected through a divider network to the collector of the transistor and the outer input is connected to a fixed direct-current voltage source. Provision is also made for an error amplifier connected to the output of the comparator, and for a summing circuit which is connected to the control input of the transistor and receives the control signal.
- Assignee:
- Groupement D Interet Economique De Recherches Et De Developpemen (France)
- Patent Number(s):
- US 4359038
- OSTI ID:
- 6500225
- Country of Publication:
- United States
- Language:
- English
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