Fluorescent lamp ballast control circuit
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United States of America Patent
Stats
-
Feb 14, 2006
Grant Date -
Jun 24, 2004
app pub date -
Aug 13, 2003
filing date -
Aug 16, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluorescent lamp ballast control circuit includes a ballast controller IC for driving a fluorescent lamp in a half-bridged topology and a control circuit. The control circuit receives an input signal and provides an output signal to the ballast controller IC. The control circuit further receives a feedback signal indicative of the fluorescent lamp current. The control circuit output signal is based on the input signal and the feedback signal. The fluorescent lamp ballast control circuit is used in combination with a fluorescent lamp ballast.
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