Electronic switching for solid state ignition

Details Electronic switching for solid state ignition Electronic switching for solid state ignition

1982-02-01

1983-09-13

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Power supply, ignition coil primary, and interrupter element...

123149C, F02P 108

Patent

active

044035934

ABSTRACT:
Breakerless ignition system of the inductive type is used to provide ignition pulses for an internal combustion engine which substantially duplicates the timing performance of a breaker-point magneto. The system utilizes a transistor for making and breaking the current flow in the primary coil of the ignition transformer. Switching of the transistor is controlled by a silicon controlled rectifier (SCR) and gating of the SCR is controlled by a time-delay network which includes a capacitor, resistor and a transistor switching means in circuit with the control electrode of the SCR. A second transistor and capacitor network controls the rate of rise of current to the time-delay network as a function of engine speed.

REFERENCES:
patent: 4174697 (1979-11-01), Podrapsky et al.
patent: 4178892 (1979-12-01), Podrapsky et al.
patent: 4188929 (1980-02-01), Podrapsky et al.
patent: 4207852 (1980-06-01), Ohki et al.
patent: 4233951 (1980-11-01), Take
patent: 4329950 (1982-05-01), Orova et al.

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