[hpsdr] PicoPSU power supplies

[n3evl]

Ted,

I think you'll find that Atlas does in fact have provision for such a 
switch - look for the pwr on pair markings in the top corner of the 
board above the ATX connector.  I do have a toggle switch wired to this 
dating back to when I was using a standard PC PSU which required this 
switching.  I can't remember if this was an issue when I first started 
using the PICO unit it may be that the switch just happens to be 'on' 
and I never thought about it :)  I'll experiment with it later and 
verify that it has impact or not on using the PICO unit.  Others may 
feel free to comment if they already know if this is required with the 
PICO unit.

Pete

On 3/1/2012 2:38 AM, VE7VIB wrote:
>
> Hi Pete,
>
> I got this PSU for my HPSDR project following the recommendation on 
> the reflector.
>
> I got one from I tuner after paying a hefty import charges of $87 / I 
> ordered more items in that order but still too much/ .
>
> The problem I have now is that there is a sequence required to power 
> picopsu.  First I have to power the PicoPSU-120-WI-25 converter    and 
> then short pins 14 and 15 /pc to the ground.
>
> It does not work if the power is supplied to picopsu plugged to the 
> Atlas board. Atlas board has no external power switch and this 
> procedure is not possible.
>
> I am wondering if you have experienced the same problem, and how did 
> you solve it.
>
> I have another picopsu model PW-200-M which works fine with my Atlas 
> board plus Metis+Mercury x 2 +Penelope +Excalibur/.
>
> Ituner technical support is not answering all my questions.
>
> 73, Ted VE7VIB
>
>

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