how to select sampling frequency?

Discussion in 'Power Electronics' started by annapurna, Mar 3, 2017.

  1. annapurna

    Thread Starter New Member

    Feb 11, 2016
    19
    0
    I am using a 3 phase interleaved buck converter with closed loop operation (100000 Hz).For this i selected tms320f28027f processor.Now my doubt is how to select the sampling frequency of the processor.According to sampling theorem,i found that fs>2fm .so it should be greater than 200000 Hz.Am i correct?If not please tell me how to select it for my application.
    Thankyou in advance.............................
     
  2. MrChips

    Moderator

    Oct 2, 2009
    16,737
    5,132
    You are correct.

    The sampling theorem dictates that your sampling rate must be at least two times the highest frequency component in the signal.

    If you wish further detail in the shape of the waveform, sample at least ten times the frequency of the waveform.
     
  3. annapurna

    Thread Starter New Member

    Feb 11, 2016
    19
    0
    thanks a lot for your reply.....
     
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