Circuit Idea Required

Discussion in 'General Electronics Chat' started by Vikram.Kasinathan, Jan 12, 2010.

  1. Vikram.Kasinathan

    Thread Starter New Member

    Jan 12, 2010
    1
    0
    I need to make one LED glow after each clock pulses. If i give 11 pulses 11 LED's should glow. Please see the figure. I tried doing this with cd4017 decade counter but only one LED glows at a time. Please help me out.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Here's a start for you:

    [​IMG]

    I'm not going to draw the whole thing out; it's basically more of the same.

    Keep the current limiting resistors high enough so the 4050's don't have to source much current, or you'll just get a single LED lit at one time.
     
  3. ifixit

    Distinguished Member

    Nov 20, 2008
    639
    108
    Hi Vikram,

    Try using a shift register such as the CD4015. You'll need 2 of these.

    Have fun too.
     
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