mass led lighting

Discussion in 'General Electronics Chat' started by bdexter, Jun 8, 2009.

  1. bdexter

    Thread Starter New Member

    Jun 8, 2009
    2
    0
    Hello people
    here is my question I am lighting 170 high bright red leds 100 of them must be slightly dimmer than the others currently they are wired in 5 series to parallel = 20 legs with 150 ohm resistors and 14 legs with 1k ohm resistors as you can see thats a lot of resistors can this be slimmed down using constant current driver? my board space is limited to the leds so making a constant current driver board seems like the best way to reduce the space requirements
     
  2. bdexter

    Thread Starter New Member

    Jun 8, 2009
    2
    0
    Oh yeah the power supply fluctuates from about 12 volt to 14.7

    Thanks for any help and links
     
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