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(very) basic power supply question.

Discussion in 'Electronic Basics' started by BERT, Apr 18, 2007.

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  1. BERT

    BERT Guest

    Hi,

    I have a electronics newbie question. I have a HP E3631A power supply
    that has an "Output OFF" option that 'turns off' the outputs. Now, I
    would like to know what is the difference between using this option,
    and setting "0.0V" output on the power supply. Does setting 0.0V mean
    I am short circuiting the inputs of the power supply ? I am sort of
    confused here. Please help !

    Thanks,
    Vijay.
     
  2. Eeyore

    Eeyore Guest

    Output OFF should make the output terminals go high impedance. Setting 0V should
    leave them low impedance.

    Graham
     
  3. John Fields

    John Fields Guest

     
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  7. ehsjr

    ehsjr Guest

    That's a triple output power supply. You owe a
    big thank you to John Fields for posting the link
    to the documentation. Download it, print it out
    and keep it with the supply.

    The output on/off disconnects all three outputs
    from the loads. The knob that sets a supply to 0.0
    sets only the selected supply to that value and
    does not disconnect the load - the other two supplies
    stay wherever you had them set.

    Ed
     
  8. BERT

    BERT Guest

    Thanks for the document, John !

    -Vijay.
     
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