Igniter for an engine

Details Igniter for an engine Igniter for an engine

1991-05-30

1992-05-19

Wolfe, Willis R.

Internal-combustion engines

High tension ignition system

Current or voltage sensing in coil primary

123609, 361400, F02P 706, H05K 702

Patent

active

051138409

ABSTRACT:
An igniter for an internal combustion engine is provided which is small in size, efficient and inexpensive to manufacture. The entire manufacturing process can be easily automated. The igniter includes a power transistor circuit for turning on and off the current supply to a primary winding of an ignition coil, a current detector for detecting a current supplied to the ignition coil primary winding, and a current limiter for controlling the current supplied to the ignition coil primary winding based on the current detected by the current detector. The current detector comprises a conductor in the form of a conductive wire separately formed from the current limiter and connected between ground and a junction between the power transistor circuit and the current limiter.

REFERENCES:
patent: 4248200 (1981-02-01), Sugiura et al.
patent: 4366800 (1983-01-01), Seeger et al.
patent: 4367722 (1983-01-01), Mizuno
patent: 4649888 (1987-03-01), Kawai et al.
patent: 4818823 (1989-04-01), Bradley
patent: 4818895 (1989-04-01), Kaufman
patent: 4949222 (1990-08-01), Bender et al.

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