Protective device for auto illumination system

Details Protective device for auto illumination system Protective device for auto illumination system

1986-03-18

1987-09-29

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 98, 315 82, 315307, H02H 3093, H05B 4126

Patent

active

046972200

ABSTRACT:
A protective device or an auto illumination system, including an illumination component, a protective diode, a pulse processor, an overcurrent limit circuit, a high-voltage oscillator circuit and a trigger control circuit. An overcurrent limit circuit is added to the auto illumination system for protecting illumination elements from being burned due to excess current, by providing a curbing signal therefrom, so that the illumination elements can be protected from being destroyed even when the engine speed runs at over 18000 rpm, or as a result of mistakenly connecting an input signal line to the rotary distributor, increasing the durability of the illumination system. A trigger control circuit is provided for receiving a triggering signal to generate a high negative voltage for the illumination elements.

REFERENCES:
patent: 4291254 (1981-09-01), Arlt et al.
patent: 4395680 (1983-07-01), Slutzky
patent: 4455509 (1984-06-01), Crum
patent: 4481553 (1984-11-01), Owen
patent: 4511195 (1985-04-01), Barter

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