Negative power supply from Positive power supply

Discussion in 'General Electronics Chat' started by makelex, Mar 7, 2013.

  1. makelex

    Thread Starter New Member

    Mar 7, 2013
    3
    0
    Can any one tell me how to convert +12 volt to -12 volt for Op amp 741 power supply
     
  2. wmodavis

    Well-Known Member

    Oct 23, 2010
    737
    150
    Switch the output leads.
     
  3. MrChips

    Moderator

    Oct 2, 2009
    12,414
    3,353
    You need a dual supply or switch to a single supply op amp.
     
  4. bountyhunter

    Well-Known Member

    Sep 7, 2009
    2,498
    507
    charge pump inverter, free running 555 timer driver
     
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