I recently salvaged a 500 watt atx computer psu to use as a bench power supply but have some niggling question that need answers.
Power rails specs of the psu are:
+3.3v 26a max current
+5v 27a max current
+12v 22a max current
-12v 0.5a max current
As this is a 500 watt power supply is the following within limits if i max out these power rails at the same time will it be within limits of the psu just want to be sure its safe ?
5v x 27amp = 134 watt
12v x 22amp = 264 watt
Total wattage 398 watt
Is it possible to make a higher voltage rail than 12v from using existing rails if so how and how much current can i safely draw on that rail ?
Do most computer psu have overload protection and can they run inductive loads such as a motor/relay etc without fear that it will damage the transformer ?
Power rails specs of the psu are:
+3.3v 26a max current
+5v 27a max current
+12v 22a max current
-12v 0.5a max current
As this is a 500 watt power supply is the following within limits if i max out these power rails at the same time will it be within limits of the psu just want to be sure its safe ?
5v x 27amp = 134 watt
12v x 22amp = 264 watt
Total wattage 398 watt
Is it possible to make a higher voltage rail than 12v from using existing rails if so how and how much current can i safely draw on that rail ?
Do most computer psu have overload protection and can they run inductive loads such as a motor/relay etc without fear that it will damage the transformer ?