[Soekris] Power supply /

[Bob Camp]

Hi

The only disadvantage to using a 16 volt supply is that it's not 12  
volts :)

Some odd cards require a +12 volt supply and it can be stolen from a  
+12 volt unregulated input. If you have a +16 supply then you would  
have to do something a bit more complex. I have not seen any cards  
here that need +12 in an long time ...

Most switching supplies are more "happy" with a higher input voltage  
than a lower one. You may get a little more output current at +5  
volts with a +16 input than with a +12 volt input before the parts  
start to smoke. That is all on the load side though, and it's not  
something I would depend on without really looking at the circuit used.

Bob


On Aug 11, 2007, at 1:55 PM, ev wrote:

>
> hi,
>
>
> when I read the 5501 specs it says "Power using external power  
> supply is
> 6-25V DC", does it mean that I can use a 16v supply? ... I have a  
> couple of
> spare small 16v 4,5A PSU's .... I have issues when powering up the  
> 5501
> incl. a 2.5" hard drive, making a quick calculation tells me that  
> the std
> 12v 1,5A Soekris supply is on the limit (18W max) and the 5501 and  
> a 2,5"
> drive takes (12,3W + 5W during start up = 17,3W)
>
> best regards
> -- 
> View this message in context: http://www.nabble.com/Power-supply--- 
> tf4254222.html#a12107626
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>
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