Re: Dumb question re power adapter...

["Alancc" <alan.cc@xxxxxxx>]

So long as it is not less than 0.8A it will be fine the component it is
supplying will draw the current it requires.

Alancc
----- Original Message -----
From: Paul Gordon <paul_gordon@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Saturday, December 22, 2001 10:24 AM
Subject: [ukha_d] Dumb question re power adapter...


> Hi all, - a dumb question if you will indulge me.... (too much
sherry!)
>
> I picked a HP scanner the other week reduced from £80 to £30 as it had
no
> power adapter. (which I knew I'd be able to get for about a tenner).
>
> However, having had a poke around, it looks like the power adapter
from my
> laptop is pretty close to being perfect... (apart from 1 thing...)
>
> The Scanner wants 15V, 0.8A, centre positive.
>
> My laptop power adapter has exactly the right size plug, and it is
centre
> positive, and it also outputs 15V. However, it is also rated at 3A...
>
> So my dumb question is: - is the rated output current stated on the
power
> brick what it is "capable" of supplying, or what it will
pump out
> regardless... i.e. can I plug it into this scanner safely? - is it the
case
> that the scanner will just draw 0.8A which the adapter will obviously
by
> happy to supply, or will the adapter always blat 3A into the scanner?
>
> Ta...
>
> Paul G.
>
>
>
>
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