Electricity: electrical systems and devices – Igniting systems – For electric spark ignition
Patent
1991-12-02
1993-06-29
Pellinen, A. D.
Electricity: electrical systems and devices
Igniting systems
For electric spark ignition
361257, 307419, H05B 4136
Patent
active
052240150
ABSTRACT:
An ignition generator includes an energy source having a transformer, and a first circuit connected to a first secondary winding of the transformer. The first circuit includes a series connection of a first energy storage capacitor, an inductor and an ignition spark plug, and a free wheel diode connected in parallel to the inductor and the ignition spark plug. Circuitry is provided for shorting the first circuit to produce sparks between the electrodes of the spark plug. The generator further includes a second circuit which is electrically equivalent to the first circuit and which is connected to a second secondary winding of the transformer. The second circuit includes a second energy storage capacitor and impedance means connected in series. A comparator is provided for comparing the voltage of the second voltage energy storage capacitor with a reference voltage. Shorting of the first circuit is carried out according to an output of the comparator.
REFERENCES:
patent: 3635202 (1972-01-01), Issler et al.
patent: 3832986 (1974-09-01), Dogadko
patent: 3889173 (1975-06-01), Klusmann et al.
patent: 4967037 (1990-10-01), Roberts
Krishnan Aditya
Labo Industrie
Pellinen A. D.
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