I was wondering, does there have to be a load on each power line of an ATX power supply??
I have an application, running some blower fans on some "test" battery packs at work (automotive). To buy a lab supply that can put out a decent amount of current, you have to spend hundreds, if not thousands of dollars (actually, you CAN buy cheaper ones, but they fail alot sooner...and SUCK) Anyway, an ATX supply can be had at a fraction of the cost of a lab supply (due to sales volume, I would guess). All I really need is ~24A on the 12V side and less than 500mA on the -12V side. 5V, 3.3V and 5VSB would not be used.
1) So, my first question is, do I need to put a load on the unused (5V and 3.3V line), since it is a switching PS?
2) Can you put 2 or 3 switching power supplies in parallel (to comfortably acheive the current required)??
Thanks!!
I have an application, running some blower fans on some "test" battery packs at work (automotive). To buy a lab supply that can put out a decent amount of current, you have to spend hundreds, if not thousands of dollars (actually, you CAN buy cheaper ones, but they fail alot sooner...and SUCK) Anyway, an ATX supply can be had at a fraction of the cost of a lab supply (due to sales volume, I would guess). All I really need is ~24A on the 12V side and less than 500mA on the -12V side. 5V, 3.3V and 5VSB would not be used.
1) So, my first question is, do I need to put a load on the unused (5V and 3.3V line), since it is a switching PS?
2) Can you put 2 or 3 switching power supplies in parallel (to comfortably acheive the current required)??
Thanks!!
Facebook
Twitter