led sign constant current regulator

Discussion in 'The Projects Forum' started by RRITESH KAKKAR, Jan 29, 2015.

  1. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    Hello,
    I was thinking to eliminate the Series Resistance from led string to reduce the manual work load..
     
  2. ronv

    AAC Fanatic!

    Nov 12, 2008
    3,292
    1,255
    Sounds good to me. What's the question? :oops:
     
  3. crutschow

    Expert

    Mar 14, 2008
    13,053
    3,244
    Whats the "manual work load"? :confused:
     
  4. wayneh

    Expert

    Sep 9, 2010
    12,154
    3,060
    The resistor protects the LEDs from over-current. How else will you provide for that function?
     
  5. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    745
    I was thinking of having a biscuit with my cup of tea.....

    use an lm317 regulator if the voltage permits it..
     
  6. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,771
    971
    throw us a bone and actually attempt to provide a schematic and specifications of these LEDs..
    There are NUMEROUS constant current drivers.. All must be selected based on actual specifications..
     
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