AC Function Generator?

Discussion in 'The Projects Forum' started by robotkid249, Apr 5, 2009.

  1. robotkid249

    Thread Starter Member

    Mar 18, 2009
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  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
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    With only a single DC voltage for power, the outputs will always be DC. You would need an additional op amp stage plus a negative DC voltage to produce an AC waveform.
     
  3. BillB3857

    Senior Member

    Feb 28, 2009
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    Looking at the schematic, it looks like they use a "Virtual Ground" which is the output of a 50% voltage divider feeding a non-inverting voltage follower. If the "Virtual Ground" is used as the reference for the output, then A/C would be apparent, if not really true.
     
  4. Audioguru

    New Member

    Dec 20, 2007
    9,411
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    Of course the square-wave, triangle-wave and sine-wave outputs are AC.
     
  5. Wendy

    Moderator

    Mar 24, 2008
    20,765
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    Just be aware, no real power there, but good for electronics tests and experiments.
     
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