DISCHARGE LAMP LIGHTING APPARATUS
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United States of America Patent
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Issued Date -
Jan 27, 2011
app pub date -
Feb 24, 2009
filing date -
Mar 14, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
configured to detect a current passing through at least one predetermined discharge lamp among the discharge lamps and output a detection signal when all of the discharge lamps have lighted, and a PWM comparator to control the switching elements according to the triangular signal and detection signal.
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