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From: Ken Meyers on 21 May 2010 07:52
I recently purchased a switch mode power supply with no accompanying
literature. In addition to the V+ and V- outputs it has S+ and S-
terminals. Can someone please advise what these are for and how to
wire them.

I also understand the output voltage can be adjusted + or - 5 volts
from the specified 12V, but can see no external provsion for this. Any
advice on this would also be appreciated.

Thank you for your reply.

Ken Meyers
From: Royston Vasey on 21 May 2010 08:00

"Ken Meyers" <kenmeyers(a)lateral.com> wrote in message
news:4bf6726a.1394968(a)news.tpg.com.au...
>I recently purchased a switch mode power supply with no accompanying
> literature. In addition to the V+ and V- outputs it has S+ and S-
> terminals. Can someone please advise what these are for and how to
> wire them.
>
> I also understand the output voltage can be adjusted + or - 5 volts
> from the specified 12V, but can see no external provsion for this. Any
> advice on this would also be appreciated.
>
> Thank you for your reply.
>
> Ken Meyers



What brand, model number ??????????????????????????????????????


AFAIK the "S" terminals are probably "sense" terminals. They feedback the
voltage delivered to the load to the psu and allow it to compensate for
losses in the wiring to the supply terminals.


Go to meanwell or one of the smps manufacturers sites and look in some
datasheets.



From: Grant on 21 May 2010 17:39
On Fri, 21 May 2010 11:52:59 GMT, kenmeyers(a)lateral.com (Ken Meyers) wrote:

>I recently purchased a switch mode power supply with no accompanying
>literature. In addition to the V+ and V- outputs it has S+ and S-
>terminals. Can someone please advise what these are for and how to
>wire them.

Sense lines? Wire to the output terminals, or to the load for accurate
voltage sensing to overcome the power cable voltage drop due to output
current.
>
>I also understand the output voltage can be adjusted + or - 5 volts
>from the specified 12V, but can see no external provsion for this. Any
>advice on this would also be appreciated.

Look for a trimpot behind a hole ;)

Grant.
--
http://bugs.id.au/
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