Protective device for auto illumination system
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United States of America Patent
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Sep 29, 1987
Grant Date -
N/A
app pub date -
Mar 18, 1986
filing date -
Mar 18, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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