computer power supply 12 volt

Discussion in 'General Electronics Chat' started by jake77, Mar 5, 2010.

  1. jake77

    Thread Starter New Member

    Feb 26, 2010
    7
    0
    Can i connect two computer power supplies in parallel to get high current?

    i need 12 volt 25A output.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    jake77 likes this.
  3. russ_hensel

    Well-Known Member

    Jan 11, 2009
    818
    47
    Connect the grounds together. Put a .1 ohm resistor in series with each +12 volt ouput and put them in parallel. When you draw 10 amp from each there will be a 1 volt drop across the resistor. ( and 10 watts of waste heat ). This will encourage load sharing and decrease the tendency to "fight". It will compensate for some voltage mismatch of the output voltages, but at the cost of waste heat and poor load regulation.
     
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