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Whats wrong with this calculation

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    Whats wrong with this calculation

    Converting watts to amps..

    You might have to think of it first in terms of max watts. For example, lets say you have 2 12V rails - each rated for 18A. Lets also say that this particular PSU is only rated for 350W. Assume the first is being used fully: 12V x 18A = 216 watts. That only leaves 134 watts left before you hit the max power of the PSU (350 - 216 = 134). 134W/12V is only 11 watts left... So in this case, even though both rails are rated to a max of 18A (which might sometimes imply 36A max on 12V), in this case, the max is actually 18 + 11 = 29A.

    #2
    Re: Whats wrong with this calculation

    This means that the output sections of the PSU can withstand more current than the input section (caps, switching transistors, transformer) can provide.

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