Automatic headlight control circuit

Details Automatic headlight control circuit Automatic headlight control circuit

1975-02-04

1976-06-15

Hohauser, Herman J.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 10BP, 315 83, 340 56, B60Q 108

Patent

active

039639401

ABSTRACT:
An automatic headlight control circuit is disclosed which will serve to turn-on automobile lights in response to pulsed external signals such as ignition pulses. A delay circuit is provided which will cause the lights to be turned-off a predetermined period of time after the external signals to the control circuit have ceased. A delay of several minutes is accomplished using an emitter follower circuit.

REFERENCES:
patent: 3769519 (1973-10-01), Adamian
patent: 3798500 (1974-03-01), Florence et al.
patent: 3818267 (1974-06-01), Hill et al.
patent: 3881128 (1975-04-01), Douglas et al.

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