Ignition system for internal combustion engine
An ignition system for an internal combustion engine is described, comprising: an ignition voltage generating circuit for inducing a high voltage across a secondary coil of an ignition coil by operating a semiconductor switch to quickly vary a primary current of the ignition coil; a signal coil for generating an AC signal in synchronism with rotation of the engine, the AC signal having a wave height increased with an increase in a rotational speed of the engine; and a trigger circuit for receiving the output signal of the signal coil and generating a trigger signal which is supplied to the semiconductor switch to operate it at an ignition position of the engine. The trigger circuit consists of a delay rotation region setting circuit for receiving the output signal of the signal coil and generating a delay region signal when it detects, depending on the output signal, that the rotational speed of the engine reaches a delay rotation region in which the ignition position is delayed with an increase in the rotational speed.
- Assignee:
- Kokusan Denki Co., Ltd., Numazu
- Patent Number(s):
- US 4809661
- OSTI ID:
- 6058053
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ignition apparatus for internal combustion engines
Ignition system for internal combustion engine
Related Subjects
330100* -- Internal Combustion Engines
DESIGN
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
PULSE CIRCUITS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR SWITCHES
SIGNAL CONDITIONERS
SWITCHES
VOLTAGE REGULATORS