Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Timothy George Bushell0
Christopher Brian Taylor Latham0
Date of Patent
March 27, 2007
Patent Application Number
10954377
Date Filed
September 29, 2004
Patent Primary Examiner
Patent abstract
A method and control circuit are disclosed for controlling light emitting diodes (“LEDs”). Based upon the LED's current versus intensity characteristic and temperature versus intensity characteristic, the rate of change of LED output intensity with respect to current is calculated. Adjusting LED current to provide zero rate of change ensures that LED output is maximised.
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