Guyz help me,..... im a newbie

Discussion in 'General Electronics Chat' started by rcapolinaria, Jan 16, 2013.

  1. rcapolinaria

    Thread Starter New Member

    Jan 16, 2013
    3
    0
    does any one knows how to test for voltage avalance breakdown of a BJT? im using arduino microcontroller......
     
  2. Brownout

    Well-Known Member

    Jan 10, 2012
    2,375
    998
    For what.....
     
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  3. SPQR

    Member

    Nov 4, 2011
    379
    48
    Hmmmm...I think we're going to need more info.
    Is it an avalanche transistor, or a regular transistor you want to drive to avalanche?
    Do you want to look up the voltage and current characteristics on a datasheet and then apply them to the transistor via the Arduino?

    Tell us exactly what you'd like to do.
     
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  4. MrChips

    Moderator

    Oct 2, 2009
    12,452
    3,371
    Increase the voltage until it avalanches?
     
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  5. rcapolinaria

    Thread Starter New Member

    Jan 16, 2013
    3
    0

    just a regular transistor....is it possible to test for its avalanche voltage without damaging the device....? because i wanted to create a BJT tester that will measure avalanche voltage so even without a datasheet....the user is aware of the maximum supply that a certain BJT device can handle.
     
  6. rcapolinaria

    Thread Starter New Member

    Jan 16, 2013
    3
    0
    the microcontroller is only capable of reading voltage up to 5 volts..so if i'm going to increase the voltage until it avalanche, the voltage might be higher than 5 volts which will possibly damage my microcontroller.....is there any way to convert the actual voltage to fall between 0-5 volts to suit for the microcontroller input requirement? if there is...how to recover the actual voltage for the result display.....
     
    Last edited: Jan 17, 2013
  7. MrChips

    Moderator

    Oct 2, 2009
    12,452
    3,371
    Use a voltage divider.
     
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