Upon the date 01:49 AM 1/26/04 -0800, Lyos Norezel said something like:
William Maddox <wmaddox(a)pacbell.net> wrote:
Huh? Did I miss something? We're talking about a power supply here, right?
Yes...
A power supply should provide the specified voltage. The power supply must
be rated at *at least* the current (Amps) or power (Watts) drawn by the
load, but an excess here does not hurt. Some power supplies require a
minimum load in order to operate correctly, that is not likely to be an
issue here. You will fry a power supply if you pull too much current from
it. You cannot *provide* too much current to the load -- it draws what it
wants to. You *can* provide too much voltage.
--Bill
Exactly.
Wrong... I'll give you an example which ANYONE and
EVERYONE working with
electricity should know, and if they don't they SHOULD NOT work on
anything even remotely related to electricity until they do know it.
You know that it's the current of the electricity is what will kill you
right? You could have thousands of volts running through your body and
still live. How is this possible, you might ask? Well if the the current
(power) is below .5 mA then it should not cause a problem. Ask any
electricity teacher "At what point will electricity kill a human being?"
and their response will be something along the lines of "Anything at or
above .5 mA will (more than likely) kill a human being." Of course there
have been cases that said otherwise but this is the majority case. Same
thing applies to delicate electronics... apply more amps then it's rated
to handle and it's fried. Just last week I fried a 2.4GHz wireless phone
by applying a power supply that had exactly the rated voltge but was 1A
instead of the required 800mA. I smelled smoke not long after plugging it
in. All this in a unit that worked properly with the right PSU just 2
weeks before... the original PSU being lost.
Need I sa!
y any
more?
No! Please!! :-/
Current is everything... voltage is nothing.
Lyos Gemini Norezel
BTW- goto the nearest high school and ask the electricity teacher about
this... see what he say... then compare it to what I said. Remarkably
like, eh? LOL
I respectfully request you yourself visit your local electrical technology
teacher or an electrical engineer you know well and present your
interpretation of the effects of current supplied by a power supply upon a
device which you had presented to us in this thread. Stand back and watch
how s/he responds.
Christian Fandt, Electronic/Electrical Historian
Jamestown, NY USA cfandt(a)netsync.net
Member of Antique Wireless Association
URL:
http://www.antiquewireless.org/