help with diff amp - pwm input, dc output

Discussion in 'The Projects Forum' started by Ripper612, Aug 12, 2010.

  1. Ripper612

    Thread Starter New Member

    Aug 3, 2010
    5
    0
    Im trying to build a basic current sensor with a diffamp.

    My probleme is the signal is PWM through my shunt resistor. About 22V peak. What must i do with my diffamp to have an continous output signal between say 0 - 5 V?

    Thanks in advance
     
  2. Norfindel

    Active Member

    Mar 6, 2008
    235
    9
    What about using a low-pass filter to obtain a continuous signal from the PWM?
     
  3. Ripper612

    Thread Starter New Member

    Aug 3, 2010
    5
    0
    Thanks for the reply. I got it to work eventually. Low pass filter did the job.

    Just for curiosity...is there any other ways to measure the current?
     
  4. sage.radachowsky

    Member

    May 11, 2010
    241
    38
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