24 volt 15 amp power supply

Discussion in 'General Electronics Chat' started by jake77, Feb 26, 2010.

  1. jake77

    Thread Starter New Member

    Feb 26, 2010
    7
    0
    I need a 24 volt 15 amp power supply to power my amplifier. Can i connect two PC power supplies 12Volt outputs in series to get 24 volts?
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    No. The grounds are common between the supplies, and you would cause a short on the lower supply. You cannot "float" or disconnect the ground, as that would make it unsafe.
     
  3. JDT

    Well-Known Member

    Feb 12, 2009
    658
    85
    Probably not.


    • Each 12V output is connected to ground (not isolated)
      The 12V output of a standard PC power supply cannot supply as much as 15A
      To make a PC power supply work properly it needs a reasonable load (quite a lot of amps) on the 5V or 3.3V outputs as well.
     
  4. jake77

    Thread Starter New Member

    Feb 26, 2010
    7
    0
    is there a way to modify the pc power supply to output 24 volts? Even 10amps will do?
     
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