Effect of Ripple voltage with increse in temperature in regulators

Discussion in 'The Projects Forum' started by av.bhargav, Apr 12, 2010.

  1. av.bhargav

    Thread Starter New Member

    Oct 7, 2009
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    i need to know what exactly happens with the ripple voltage when there is an increase in temperature.
    if so why?
    please let me know it will be a great help for me.
     
  2. Bychon

    Member

    Mar 12, 2010
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    If the heat changes the actual value of the capacitors the ripple will change. More capacitance will have less ripple. Less capacitance will have more ripple.
     
  3. av.bhargav

    Thread Starter New Member

    Oct 7, 2009
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    what happen to ripple voltage of the regulator if temperature is increased
     
  4. Bychon

    Member

    Mar 12, 2010
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    What regulator?
     
  5. retched

    AAC Fanatic!

    Dec 5, 2009
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    You may want to show us the circuit you are thinking/talking about. As I see no regulator either. ;)
     
  6. SgtWookie

    Expert

    Jul 17, 2007
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    Load regulation may degrade over temp, but ripple is not usually specified as a function of a regulator.
     
  7. av.bhargav

    Thread Starter New Member

    Oct 7, 2009
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    with any linear regulator (DC-DC)
     
  8. Bychon

    Member

    Mar 12, 2010
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    yes.......
     
  9. retched

    AAC Fanatic!

    Dec 5, 2009
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    Ripple is not a function of any DC-DC regulator. You are introducing this ripple into the circuit elsewhere. (Or not filtering it before) Lack of caps may be causing oscillation, but that can only be hypothesized without seeing a circuit.
     
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