Simple Polarity Question

Discussion in 'The Projects Forum' started by rueffy, Oct 15, 2013.

  1. rueffy

    Thread Starter Member

    Jun 29, 2013
    39
    3
    Hi,

    Would the following configuration of two 9 volt batteries allow for a dual rail +/-9V setup, i.e. reverse the polarity of the batteries and provide a common rail for the 'earth' side of each battery.

    [​IMG]

    Thanks,
    Rueffy.
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,415
    3,354
    Yes, that is the way it is done.
     
    rueffy likes this.
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,500
    2,366
    It would be known as +9v 0 -9v supply.
    Max.
     
    rueffy likes this.
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