Photo-feedback drive system
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United States of America Patent
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-
Feb 18, 1992
Issued Date -
N/A
app pub date -
Jun 13, 1990
filing date -
Jun 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A driver circuit for an electroluminescent lamp has a photo-diode for detecting the light intensity of the electroluminescent lamp and providing an output signal responsive to the intensity of the lamp and a circuit responsive to the output signal for driving the electroluminescent lamp at a set intensity.
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Cited Art Landscape
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