convert a positive voltage to a negative voltage

Discussion in 'General Electronics Chat' started by hawley3, Oct 12, 2011.

  1. hawley3

    Thread Starter New Member

    Oct 12, 2011
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    0
    I was wondering if there is any way of converting a Positive voltage of 10v to a negative 10v?
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Yes, there are ways to do that; inductively and using a capacitor charge pump.

    The capacitor charge pump method is pretty limited as to the amount of current, and you can't quite get to -10v easily.

    You can get quite a bit more current using an inductor.

    How much current did you need?
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    I've done it using a 555 feeding a voltage doubler. As Wookie suggests, your current specification is critical.
     
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