[hpsdr] power supply for hpsdr

[Dominic Hawken]

Hi All,

Many, many thanks for the power suppy info - am wiring it all up now :-)

Thanks again.

Dominic.

----- Original Message ----- 
From: "Eric Ellison" <ecellison at gmail.com>
To: "'Dominic Hawken'" <dominic at del.co.uk>; <hpsdr at hpsdr.org>
Sent: Saturday, June 28, 2008 4:34 PM
Subject: RE: [hpsdr] power supply for hpsdr


> Dominic / All
>
> Power supplies for Atlas have been discussed many times and board current
> measurements (except for Mercury at the moment) have been posted. No 
> problem
> for bringing it up again. The design of Atlas to use a standard ATX
> connector and place boards on PC slot spacing for 'cabinet' purposes were
> discussed extensively prior to Phil Covington finalizing Atlas.. Check the
> HPSDR archives all the way back to Xylo Group for earlier work on Power 
> and
> Atlas design.
>
> There are numerous articles posted on the Web for using and taming ATX 
> power
> supplies for bench supply use. Note on most supplies (Not PicoPSU) you 
> will
> need a 10 ohm 10 watt resistor in the 5 volt line to provide load to keep
> power on the outputs.
>
> Just one example:
>
> http://www.mbeckler.org/powersupply.html
>
> Also Scotty - WA2DFI TAPR has extensively used the PicoPSU to power and 
> test
> the various boards. The Pico PSU was somewhat crudely tested in the early
> going and found to be pretty quiet on the buss. If I remember correctly
> there was some short range 'radiated' rf noise. So far it handles a
> reasonable number of boards. Mercury will probably bring a new definition 
> to
> the word Sensitivity, and Phil Harman and other alpha testers will be
> testing the Mercury Alpha with PicoPSU to see if there are any issues. 
> Since
> the 5 Mercury Alpha's are on the way to the testers, we should know in a
> week.
>
> http://www.mini-box.com/s.nl/it.A/id.417/.f
>
>
> Many HPSDR nuts are using bench supplies.
>
> There is no Standard Supply or recommended supply at this point.
>
> Thanks
> Eric - AA4SW
>
>
>
> -----Original Message-----
> From: hpsdr-bounces at lists.hpsdr.org [mailto:hpsdr-bounces at lists.hpsdr.org]
> On Behalf Of Dominic Hawken
> Sent: Friday, June 27, 2008 8:25 PM
> To: hpsdr at hpsdr.org
> Subject: [hpsdr] power supply for hpsdr
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> Apologies if this has been covered before - have googled etc.
>
> Is there a current preferred psu to use for Atlas etc? Am about to plug
> in my home-assembled Atlas and all available boards but slightly scared
> I might blow the whole thing with a bad solder joint. All looks good but
> recent mention of 'over-voltage' protection etc makes me a little scared
> of using a standard PC psu / flicking the on switch.
>
> What's the current psu of choice for you guys that have up and running
> systems?
>
> Dominic - G6NQO
>
> -- 
> Director
> Deluxe Corporation Ltd
> http://www.del.co.uk/
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