Help for voltage regulation

Discussion in 'General Electronics Chat' started by yasinji, May 15, 2014.

  1. yasinji

    Thread Starter Member

    Mar 25, 2009
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    Is there any device or component that can clamp the 200V input to 25V for 200ms:mad: without failure? Please help.
     
  2. pwdixon

    Member

    Oct 11, 2012
    488
    56
    Obviously yes but the problem is that your question is too general to actually be able to make sensible suggestions. More details required on your application/current circuit please.
     
  3. yasinji

    Thread Starter Member

    Mar 25, 2009
    12
    0
    This voltage is used for taking measurement. The voltage varies for 0.5V to 200V. The voltage is created on a coil(inductor) due to induced emf when a current flows through a primary conductor using Faraday's current law..The voltage above 25V is due to fault current in the primary conductor which I dont require to measure. So from 0.5V to 25V I want the actual voltage and above 25V to 200V I want the voltage to be clamped at 25V.

    I dont know much theory nor I am a professional on this design its just trial and error. Can anyone help to find a component which can do my job? Please help!!!
     
  4. t06afre

    AAC Fanatic!

    May 11, 2009
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    Do you have any schematic or diagram for this setup. More details are needed. Do you want to clamp the output just for measurement? That may simplify the the setup
     
  5. Stuntman

    Active Member

    Mar 28, 2011
    181
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    Varistors and/or TVS diodes come to mind.

    As mentioned, specific information about what kind of current you will be fighting will help in selecting specific components.
     
  6. crutschow

    Expert

    Mar 14, 2008
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    What is the inductance and the current value?
     
  7. #12

    Expert

    Nov 30, 2010
    16,248
    6,745
    That is the critical question.

    If you are only dealing with milliamps, the circuit can be clamped with a simple zener diode. More than that amount of current and the components must be larger.
     
  8. inwo

    Well-Known Member

    Nov 7, 2013
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