Anti-theft device for vehicle using interrupt relays and diodes

Details Anti-theft device for vehicle using interrupt relays and diodes Anti-theft device for vehicle using interrupt relays and diodes

1994-04-25

1996-06-18

Wysocki, Jonathan

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

180287, B60R 2504

Patent

active

055280854

ABSTRACT:
An anti-theft device for a vehicle is provided. The anti-theft device includes a group of relays that are interconnected to the vehicle's circuit to be protected. The relays have their terminals B and C connected to the vehicle's circuit device and a pair of diodes or bridge diode. The cathode of one group of diodes are connected to a sensor, and the anode of another group of diodes are connected to the ground of said anti-theft device. By the one way conduction of the diodes, the battery voltage from the circuit being protected serves as an auxiliary power connection while not jeopardizing the normal function of the circuit being protected.

REFERENCES:
patent: 4736113 (1988-04-01), Leu
patent: 5061915 (1991-10-01), Murphy
patent: 5218338 (1993-06-01), Chang
patent: 5412370 (1995-05-01), Berman et al.

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