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Calculation Method.

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Calculation Method.

Postby navinchandra » Wed Sep 26, 2012 2:45 am

I have made LED panels in which 4 LEDs are in series and such 45 series are placed in parallel.
I want to operate it with CONSTANT CURRENT LED Driver. There are many constant current drivers are available off the self. To select suitable driver I need to supply voltage and current of entire panel. how to calculate the same. As per specification of the LEDs used, its voltage Vf=3.2v and If is 20mA. LEDs I have used are SMD. If need be, I can send schematic diagram, for which please grant permission.
Thanks.
NAM
72 yr old, retired person and electronic hobbiest.
navinchandra
 
Posts: 2
Joined: Wed Jan 26, 2011 5:24 pm
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