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All   >>  LED Lighting   >>   General Lighting Applications   >>   Questions
 

I'm looking for circuits that regulation total power dissipation as an LED warms. That is, the current is adjusted to compensate for forward voltage drop changes with temperature such that E*I is maintained at a nominal level as determined by a voltage input. Also, there is to be 100% duty cycle at a chosen output level.\nI found such a circuit at http://www.maximintegrated.com/app-note ... vp/id/4470

Thermal foldback functionality affects LED drive current limiting maximum allowed temperature at defined thermal sensing point. Please check our application note with thermal foldback for LED lightning at: http://www.onsemi.com/pub_link/Collateral/AND9053-D.PDF \n\nOr \nwith NCS1002 http://www.onsemi.com/pub_link/Collateral/AND8462.PDF fig.11, http://www.onsemi.com/pub_link/Collateral/AND8462.PDF Answered by:
ON Semiconductor
2012-10-18 19:19:42.0