[Soekris] Power Supply

[Bob Keyes]

You guys are correct. I didn't do my electronics math correctly. Mea Culpa 
<blush>

On Thu, 27 Sep 2007, Maurice Janssen wrote:

> On Thursday, September 27, 2007 at 14:57:01 -0400, Bob Keyes wrote:
>> We've had a small bit of unreliable activity from the net4826. There's no
>> manual for the net4826, but I am generally referred to the net4801 manual
>> when I have questions on it. It says, regarding power, "...
>> a small wall mount unregulated power adapter,supplying 6V-28V DC at 15 VA"
>>
>> I have been running three units off of 12V wall-warts at 750, 850, and
>> 1000 mA. This fits the spec.
>
> I'd say it doesn't.  1000 mA at 12 V is only 12 VA.  You need a bit more
> to be able to deliver 15 VA.
> I think 12 VA should be enough in most cases, but you might need more
> than 12 VA if you have some extras in the case.
>
>> The unit that hung was running on the 750mA
>> supply. It has been suggested by some of my partners on this project that
>> is not sufficient.
>
> I agree with them.
>
> Maurice
>