USB and wall powered PCB?

Discussion in 'General Electronics Chat' started by thakid87, Jul 18, 2010.

  1. thakid87

    Thread Starter Active Member

    May 23, 2009
    122
    0
    I've tried searching online and can't find anything. Is there a specific component that will allow one PCB to be powered by both a USB and a wall wart? Not simultaneously, of course. Will a transistor suffice?
     
  2. dsp_redux

    Active Member

    Apr 11, 2009
    182
    5
    An OR gate with a driver?
     
  3. vindicate

    Active Member

    Jul 9, 2009
    158
    0
    Wouldn't an OR gate allow both simultaneously? I don't think that's what he wants.

    An XOR might be better.
     
  4. BMorse

    Senior Member

    Sep 26, 2009
    2,675
    234
  5. dsp_redux

    Active Member

    Apr 11, 2009
    182
    5
    You are right here, mistyped! Sorry :p
     
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