fourier representation of a trapezoidal wave form

Discussion in 'The Projects Forum' started by arivvu, Sep 8, 2012.

  1. arivvu

    Thread Starter New Member

    Sep 7, 2012
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    Can sombody help me to construct the fourier representation of a periodic wave form?
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,153
    3,059
    Does this or this help? (Both results of a 2 second google search on your thread title.)

    [​IMG]
     
  3. ecesoul

    New Member

    Sep 8, 2012
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    0
    The trapezoidal waveform is odd and posses halfwave symmetry. So dc,cosine terms are zero and only odd sine terms are present.Do piecewise analysis
     
  4. arivvu

    Thread Starter New Member

    Sep 7, 2012
    9
    0
    [​IMG][​IMG]
    i just want to represent the above waveform in fourier series or fourier transform. assume the amplitude is Va volts.it actually represents capacitor charge and discharge in a RC circuit.
    @wayneh
    thanks for the ans but i cant match ur ans with my waveform...
     
    Last edited: Sep 10, 2012
  5. wayneh

    Expert

    Sep 9, 2010
    12,153
    3,059
    That's because your waveform isn't a trapezoid. It looks like an RC tank charge-discharge curve. Exponential.
     
    arivvu likes this.
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