Ignition system for internal combustion engine
An ignition system is described for an internal combustion engine comprising: an ignition coil; a primary current control switch arranged on the primary winding side of the ignition coil; and a control circuit for carrying out control which causes the primary current switch to be changed from a turned-on state to a turned-off state at the ignition timing of the engine in order to quickly vary a primary current of the ignition coil to generate a high voltage for ignition; wherein the control circuit compromises: signal generating means which generates first and second signals at the maximum advanced position theta1 and minimum advanced position theta2 of the ignition timing of the engine in synchronism with the rotation of the engine, respectively; a first pulse shaping circuit for shaping the first signal into a pulse-like form to generate a first pulse signal Vpl at the maximum advanced position theta1 and a second pulse shaping circuit for shaping the second signal into a pulse-like form to generate a second pulse signal Vp2 at the minimum advanced position theta2.
- Assignee:
- Kokusan Denki Co., Ltd., Numazu
- Patent Number(s):
- US 4651706
- OSTI ID:
- 6659962
- Country of Publication:
- United States
- Language:
- English
Similar Records
Apparatus for controlling ignition in internal combustion engine
Ignition system
Related Subjects
330100* -- Internal Combustion Engines
CAPACITORS
CONTROL SYSTEMS
ELECTRIC COILS
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION SYSTEMS
INTEGRATED CIRCUITS
INTERNAL COMBUSTION ENGINES
MICROELECTRONIC CIRCUITS
MOTION
PULSES
ROTATION
SIGNALS
SWITCHES
TIMING CIRCUITS