Getting rid of noise of car battery/alternator

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  1. - 7th March 2008, 11:49 #1
    Luciano's Avatar
    Luciano
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    Hi,

    How much current is drawn by your board when the mosfet is not activated?
    Are you using the brown-out detection of the microcontroller?

    Best regards,

    Luciano
  2. - 7th March 2008, 12:10 #2
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    Luciano

    I have not measured it, but it is very little current.
    I am not using the brown out detection.
  3. - 7th March 2008, 13:09 #3
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    Luciano
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    Hi,

    Build a prototype and try it out.
    Enable the brown-out detection.

    Best regards,

    Luciano
  4. - 7th March 2008, 14:16 #4
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    Luciano

    Thank you for the advice!
  5. - 9th March 2008, 06:11 #5
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    If you are still having trouble ty adding a choke in series with the incomming supply as well as capacitor on input and output of reg. Cars can be so noisey!
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