Adaptive control apparatus and method for a solid state lighting system
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United States of America Patent
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Jul 5, 2011
Grant Date -
Mar 5, 2009
app pub date -
Mar 12, 2007
filing date -
Mar 13, 2006
priority date (Note) -
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Abstract
The present invention provides a method and apparatus for adaptive control of a solid-state lighting system consisting of one or more groups of one or more light-emitting elements The invention comprises a voltage control device to provide each group with an independently controllable voltage A feedback system to detect and generate a signal representative of drive currents through the one or more groups A computing device then adaptively evaluates, based on the signal, a required voltage that achieves a desired respective drive current in each of the one or more groups.
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