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Math Help - Please help with the Fourier Series...

  1. #1
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    Please help with the Fourier Series...

    Hello, I am having difficulty with this Fourier Series:


    6218_123.bmp
    The 1st problem is stated as such; What is the amplitude of the second harmonic of V (Voltage).


    The 2nd problem is stated as such; What is the DC component of V (Voltage).


    The 3rd problem is stated as such; What is the Fundamental frequency of (Voltage).

    It would be great if someone out there could help with all of part of this...

    Best Regards
    Ward (Clawman)
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  2. #2
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    Re: Please help with the Fourier Series...

    The 2nd harmonic of a Fourier series \sum a_n is defined as the component a_n where n = 2. To find the amplitude of that component you take the derivative of a_n for that fixed n and look at the extrema.

    The DC component is found by evaluating at n = 0. Since the series begins at n = 1 it would appear that the DC component is zero.

    Wikipedia has a good article that explains what the fundamental frequency is: Fundamental frequency - Wikipedia, the free encyclopedia
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