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Just finished my new adjustable power supply!

mr_fx

Sr. Member
Oct 8, 2011
1,536
172
173
Kansas City
built from an old computer power supply that cost my buddy $535 6 or 7 years ago the company that makes it is PC Power and Cooling... they make some of the BEST power supplies out there...

this unit will auto select input voltages anywhere from 90-264 VAC / frequency 47-63Hz, has less than 0.5% ripple, voltage regulation stays within 1% no matter what and has a nearly 80% efficiency
rating. it is good for around 34 amps @ 100% duty cycle and will run up to 40 amps for short periods fan is upgraded and VERY quiet... best part is that the fan barely moves until you get the unit cookin'...

It will out put anywhere from 3-9v on the 5v leg at a respectable 40 amps... or 10.5-14.10v on the 12v leg @ 34 amp

might consider adding some nice binding posts... might even just use some bolts...

also trying to locate the over voltage and over current protection so I can raise or remove that limit

 

ooops... tried to pull a little more juice out of it... the trick on PC power supplies (when using them as a bench power supply) is to load up to 5 volt leg... well I loaded it a little too much I guess... ooopsss... cause it not only blew the fuse on the power supply but it tripped a breaker and now the fuse blows instantly...

oh well right

I think I burned out the regulator
 

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