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compararos

Discussion in 'Electronic Basics' started by smokie, May 30, 2005.

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  1. smokie

    smokie Guest

    wouls a sinusoidal input to a comparator produce the same transfer
    curve as a triangle waveform
     
  2. The transfer function is the same but the output may not be exactly
    the same.

    If the amplitudes and frequencies of the sine and triangle are the
    same, the sine has twice the rate of change of voltage at the zero
    crossings, compared to the triangle wave, so the comparator passes
    through the linear gain input range twice as fast for the sine wave.
    Of course the linear input range is very small, so the difference may
    not be noticeable unless you make very careful measurements, or the
    frequency is very low.
     
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