Anti-reverse operation of solid state inductive magneto

Details Anti-reverse operation of solid state inductive magneto Anti-reverse operation of solid state inductive magneto

1984-03-07

1985-01-01

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Safety device

123149C, 123651, F02P 108

Patent

active

044911220

ABSTRACT:
Solid state inductive magneto ignition system with antireverse running circuit has a switching transistor connected in circuit with the primary of an ignition coil. A control circuit is connected for cutting "off" the switching transistor to generate ignition pulses. A first by-pass circuit for shunting current from the control circuit includes a silicon controlled rectifier (SCR) which is turned "on" by discharge of voltage from a capacitor in combination with a resistor which serves as a time delay to hold the by-pass circuit "on" for the duration of a voltage pulse developed by reverse running of the magneto. A voltage polarity sensing circuit for by-passing the by-pass circuit in response to a forward running pulse includes a silicon controlled rectifier (SCR) connected in parallel with the first SCR and a choke coil and a resistor to cause the second SCR to be turned "on" by a first negative pulse developed during forward running of the magneto.

REFERENCES:
patent: 4188929 (1980-02-01), Podrapsky
patent: 4401096 (1983-08-01), Podrapsky

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