Over voltage detection circuit for use in electronic ignition sy

Details Over voltage detection circuit for use in electronic ignition sy Over voltage detection circuit for use in electronic ignition sy

1980-07-07

1982-11-16

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307363, 307547, 315209T, 361 91, H03K 5153, H02H 320

Patent

active

043596525

ABSTRACT:
An over voltage detection circuit for utilization in conjunction with a series driver transistor type electronic ignition system which samples the voltage magnitude appearing at the collector of the series driver transistor to render the same nonconductive when a high voltage condition appears at the collector thereof. The over voltage detection circuit includes a voltage translation circuit for translating the level of the voltage appearing at the collector of the series driver transistor to a second level, and a sampling transistor the base of which is coupled to the voltage translation circuit and with the collector-emitter path coupled in series between the collector of the series driver transistor and an output of the detection circuit which is rendered conductive in response to the translated voltage exceeding a predetermined threshold level for supplying an output signal which is utilized to render the series driver transistor nonconductive.

REFERENCES:
patent: 3268881 (1966-08-01), Vasel

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