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Dividing energy from power source

  1. Feb 15, 2009 #1
    If I set up 2 AA batteries to power 3 LEDs (each of which had an on/off switch), how would I set up a circuit which allows the same voltage and current to be supplied to each LED when switched on without having to share with other LEDs that are on. If I'm not describing this well, I want the same effect as if each LED had its own power source without affecting the input of its neighbours.

  2. jcsd
  3. Feb 15, 2009 #2


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    Science Advisor
    Gold Member

    3 seperate circuits with 3 seperate switches and 3 seperate current limiting resistors.
  4. Feb 15, 2009 #3
    You mean like this?

    http://img132.imageshack.us/img132/3523/ledcircuitid6.png [Broken]
    Last edited by a moderator: May 4, 2017
  5. Feb 15, 2009 #4
    Yes, that would work and is probably the best route to take.
  6. Feb 15, 2009 #5


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    Staff: Mentor

    That's a very cumbersome way of drawing what is really pretty simple: you wire them in parallel.
  7. Feb 15, 2009 #6
    OK, thanks everyone.
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