Integrate a triangular wave to get a sine wave? Aren't they quadratic?

Discussion in 'Homework Help' started by blah2222, Aug 9, 2011.

  1. blah2222

    Thread Starter Well-Known Member

    May 3, 2010
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    I mean, when integrating a square wave, it only makes sense that a triangular wave will be the result as square waves are periodic DC levels (C) and the integral of a constant is a constant multiplied by time plus another constant (C*t + D) . Seeing this further, integrating C*t + D, the result is C*t^2 + D*t + E.

    The only true way to get a pure sinusoid has to be from a resonator (LC) circuit, so I am just wondering if people consider these quadratic "sinusoids" to be "good enough" approximations, and convenient because they make use of op amps?

    Thanks,
    JP
     
  2. someonesdad

    Senior Member

    Jul 7, 2009
    1,585
    141
    This was rather thoroughly discussed in a recent thread -- you can search for it and see what people had to say.
     
  3. blah2222

    Thread Starter Well-Known Member

    May 3, 2010
    554
    33
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