I remember going over this in the DC circuits class. The discussion covered
naming conventions in specifications, though: vOH, tAC, VDD, etc. In each
of these, the case, upper/lower, of the first letter indicated the parameter
as AC/DC, respectively.
In regard to the word I've seen it both ways, but I think capitalization is
correct when it is named after a person. I also notice in Nilsson's
'Electric Circuits' that he has the letter capitalized whether AC or DC:
5V, 3A, 2W, etc.
Best Regards,
John Thomas
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Doug Winterberg
Sent: Friday, April 04, 2003 3:25 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Language conventions
I seem to remember from my college text books that it mattered if you were
talking about AC or DC voltages/currents/etc. Capitalized letters meant
you were talking about DC values and non-capitalized letters meant AC
values.
-Doug
Doug Winterberg
Senior Hardware Engineer
Celestica Design Center
9 NE Blvd,
Salem, NH 03079
Doug Brooks <doug@xxxxxxxxxx>
Sent by: si-list-bounce@xxxxxxxxxxxxx
04/04/2003 04:06 PM
Please respond to doug
To: si-list@xxxxxxxxxxxxx
cc: (bcc: Doug Winterberg/CNE/Celestica)
Subject: [SI-LIST] Language conventions
Hi all,
I need some help in settling a misunderstanding among some people. It
involves when to capitalize and not capitalize Volt, Amp, and Watt, etc.
In the following uses, is it proper to capitalize the letters as
shown: The voltage is one Volt, which we can also write as 1 V. The
current is 10 Amps, but other places it is only 5 mA. The definition of
one
Amp is the flow of.......... The power generated is 5 Watts. But I only
have a 2-Watt power supply.
When do we capitalize and when don't we?
Doug Brooks
____________________________________________________________________________
___
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Issues in PCB Design"
Details at www.ultracad.com
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