Help, RE: From positive to negative voltage

Discussion in 'The Projects Forum' started by 8n0, Jan 16, 2008.

  1. 8n0

    Thread Starter New Member

    Jan 16, 2008
    1
    0
    Hi guys,

    I was wondering if someone could help me solve one of my problems in one of my projects. I have a 5V from a u-controller as a Vin in an inverting amplifier. Now i want that 5V to be negative voltage, so the output will be positive voltage. I can’t use a non inverting amplifier because of the gain formula.

    Anyone has any idea how to convert from positive voltage to negative voltage?

    Thanks a lot,
    8n0
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
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