TTL Circuit

Discussion in 'Homework Help' started by wiz0r, Aug 14, 2010.

  1. wiz0r

    Thread Starter Active Member

    May 2, 2008
    64
    0
    The questions has been solved!
     
    Last edited: Aug 15, 2010
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    The two transistors with double emitters are the inputs. Look at what they do when all four emitters are at a high level. And then when one or all gets pulled low. The transistors are set up as switches.

    You have a fixed voltage supply and values for the resistors, so power is easy to calculate (don't forget the PN junction drops).
     
  3. wiz0r

    Thread Starter Active Member

    May 2, 2008
    64
    0
    I got it, thank you very much, beenthere. I'm too tired to write the solution, so I'll skip it.
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Hello,

    It is NOT nice to remove the question.
    That way others with the same problem don't have a clue of this thread.
    This forum is to learn from each other.

    Bertus
     
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