power supplies

Discussion in 'General Electronics Chat' started by Newhousemt, Sep 7, 2008.

  1. Newhousemt

    Thread Starter New Member

    Sep 7, 2008
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    I have had a 20 amp power supply burn up. I have 2 10 amp supplies. I know this is basic, do I hook them in sreies or parrallel to get the 20 amp capacity
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,638
    2,344
    Hello,

    For 20 Amp. you should put them parallel.
    There is one problem. The powersupplies may not be the same.
    You should put power scottky diodes in serie with each powersupply.
    It can happen that the current is not the same for the powersupplies, so the one must deliver more than the other.
    The powersupply that delivers most will suffer this.

    When you put powersupplies in series you must add (or subtract) the voltages.
    The current will stay max 10 A.

    Greetings,
    Bertus
     
    Last edited: Sep 7, 2008
  3. Newhousemt

    Thread Starter New Member

    Sep 7, 2008
    2
    0
    Thank you, I looked at it wrong, it is in parallel.
     
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