Article View: sci.electronics
Article #6321Re: Amperage meaning?
From: paulh
Date: Wed, 26 Aug 1992 09:14
Date: Wed, 26 Aug 1992 09:14
31 lines
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1727 bytes
Michael A. Covington (mcovingt@athena.cs.uga.edu) wrote:
: Voltage is the pressure that drives a current (amperage) through a load.
:
: The way a power supply works is this:
:
: the rated _voltage_ is the actual value you'll get;
: the rated _amperage_ is the maximum permissible.
:
: The load determines how many amps will actually flow.
: So the relevant question here is whether your load consumes more
: than 2.5 amps. If not, you'll have no problem.
: --
: + Michael Covington - Artificial Intelligence Programs - U of Georgia - USA
: + Unless otherwise noted, these are private opinions, not official statements.
: + VOTE NO GEORGIA LOTTERY - don't tie education to an unpredictable income.
The assumption here is that the power supply provides a constant voltage.
There are power supplies that provide a constant current. In constant
current supplies the output current remains constant but the pd varies upto
some maximum.
The limiting constant for both types of supplies is power, W = I.V
Check the labels and be careful out there kids !!!
H
Paul Hatcher PHONE +44 904 432771
Department of Computer Science JANET paulh@uk.ac.york.minster
University of York INTERNET paulh@minster.york.ac.uk
Heslington, York, Y01 5DD UUCP {mcsun,uknet}!minster!paulh
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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!uknet!yorkohm!minster!paulh From: paulh@minster.york.ac.uk Newsgroups: sci.electronics Subject: Re: Amperage meaning? Message-ID: <714820448.20063@minster.york.ac.uk> Date: 26 Aug 92 09:14:09 GMT References: <1992Aug25.205031.20397@athena.cs.uga.edu> Organization: Department of Computer Science, University of York, England Lines: 31 X-Newsreader: Tin 1.1 PL5