PSU Question

[yak8998]

Alright, I read the AAT PSU roundup, and it opened my eyes so a problem.

I'm doing 2 projects right now in which I was going to take PSUs out of their housing to put into the cases.
But what about EMI and that stuff? Is it going to cause a large problem? And also, what are some ways to shield against it? I was thinking of pounding out and cutting up the PSU housing as much as possible to block it off. And EMI isn't dangerous to people, correct?

thx...

 

[Killbat]

You could make a grounded mesh cage around the thing, but the closer you fit it to the shape of the components, the dicier it would be, especially if any heatsinks are live. I don't know what kind of frequencies typically come out of a typical PC switching power supply, so I can't say what size holes you can get away with and still be doing a bang up job of shielding it.

It probably doesn't matter anyway.

 

[CTho9305]

Originally posted by: yak8998
Alright, I read the AAT PSU roundup, and it opened my eyes so a problem.

I'm doing 2 projects right now in which I was going to take PSUs out of their housing to put into the cases.
But what about EMI and that stuff? Is it going to cause a large problem? And also, what are some ways to shield against it? I was thinking of pounding out and cutting up the PSU housing as much as possible to block it off. And EMI isn't dangerous to people, correct?

thx...

I'm really wondering about that test. Presumably if I use non-ECC, I should be able to detect errors as well (as just plain old errors)... maybe I'll set up a couple caseless PSUs next to my ram and see if running them has any effect.