[sdiy] Another Newbie Power Supply question

[Scott Bernardi]

I've got three of the Power One supplies.  The + and - S terminals are
"sense" terminals. Think of these like op amp inputs - they "sense" the
output voltages in order to regulate them, but don't draw much current.
The idea is that if you have long leads to your circuit, you can
compensate for the losses by running the Sense leads out to your circuit
also.   Without the remote sensing, on the +/- 12v side you would tie
your +S, COM, and -S together for the "analog" ground, the -OUT and -S
together for -12v, and +S and +12v together for +12v.
The 5v side has no COM terminal, right?  Tie the -S and two -OUTs
together, and that's your "digital ground". Tie the +S and two +OUTs
together, and that's your +5v.  You would want to tie your COM from the
+/-12v side to your -OUTs on the 5v side together at only one point to
implement "star" grounding.

I've got a datasheet also, but it doesn't have a HDCC-150W-A listed.

You could contact Power One:
POWER-ONE, Inc
740 Calle Plano
Camarillo, CA 93010

805-987-8741


"Rhen, Kris" wrote:

>
>
> I bought a nice Power-One power supply (HDCC-150W-A) that does +-15v
> as well as +5v, for building a case for some MOTM and Paia modules
> (LOTS of room to grow).  On the right side it has +OUT +S | -S COM +S
> | -S -OUT  (| being a separator).  On the other,  -OUT (two posts) |
> -S +S | +OUT (two posts).  The -OUT and +OUT on the right side put out
> the -15 and +15 respectively relative to the COM in the center of that
> side.  Ok, that's fine.  On the left side, however, I don't get +5V
> from COM, instead it appears that I only get 5v difference BETWEEN the
> -OUT and +OUT?  Has anyone used one of these?  Can anyone tell me how
> to hook the baby up so that I'm feeding +12v, -12v and +5v to my
> modules all with a common ground?  Sorry for the newbie questions but
> I can't find any spec sheets on hooking it up, even from the
> manufacturer's website and the shipped instructions were pretty much
> useless, and they (power-one) don't appear to be answering my emails
> to tech support :-(  Thanks as always
>
> KRIS
>
>
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--
Scott Bernardi
sbernardi at home.net