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SZA
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re: Questions re the concept of "ground" and related "stuff"
SZA   5/13/2012 6:40:26 PM
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OMG :), perhaps the guy was getting inspired from SOI or 3D stacking [grin]

BicycleBill
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re: Questions re the concept of "ground" and related "stuff"
BicycleBill   5/6/2012 11:36:31 PM
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And we make it worse by called a hopefully equipotential plane (layer) on a PC board the "ground plane" when it is not a true Ground unless it is connected to Earth (which is relatively uncommon--excuse me, I should say,"unusual").

Max The Magnificent
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re: Questions re the concept of "ground" and related "stuff"
Max The Magnificent   5/6/2012 2:26:43 PM
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Oh my goodness -- I am speechless (and that's not something you hear me say often)

FlyByPC
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re: Questions re the concept of "ground" and related "stuff"
FlyByPC   5/5/2012 1:44:19 AM
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Max, you should always provide a picture to properly illustrate the concept of "ground." Here's one innovative approach to providing an "earth ground." (Maybe the dirt has magic electrical properties?) http://mshatalk.com/Bucket.jpg

Max The Magnificent
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re: Questions re the concept of "ground" and related "stuff"
Max The Magnificent   5/3/2012 2:29:04 PM
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"...and is a fun read" If someone can make this a fun read, I take my hat off to her/him (grin)

Jon M. Kelley
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re: Questions re the concept of "ground" and related "stuff"
Jon M. Kelley   5/3/2012 2:27:30 PM
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There is a relatively concise (1064 pages) book on this subject that might help your understanding. The book is: Grounds for Grounding, Elya B. Joffe and Kai-Sang Lock, Copyright © 2010 The Institute of Electrical and Electronics Engineers, Inc. Published by John Wiley & Sons, ISBN 978-0471-66008-8. Joking aside, this book does appear to cover all aspects of the subject and is a fun read.

Max The Magnificent
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re: Questions re the concept of "ground" and related "stuff"
Max The Magnificent   5/3/2012 1:56:06 PM
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I was always taught that since electric current is defined as "the flow of electric charge through a medium", you shouldn't say "current flow" because then you effectively have "flow flow" ... but I can never break myself of the habit of saying "the current flows..."

Mike Reich
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re: Questions re the concept of "ground" and related "stuff"
Mike Reich   5/3/2012 1:52:13 PM
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I was lucky enough a few years ago to see a presentation by Bruce Archambeault on EMC and signal integrity. I think he put it best - "Ground is where you grow potatoes. Current flows back to a source through a return path. Many times that path is not what you intended."

K1200LT Rider
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re: Questions re the concept of "ground" and related "stuff"
K1200LT Rider   5/3/2012 12:46:26 PM
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-- Sloppy terminology here will lead to sloppy thinking and subsequent problems. I agree. Just recently we reviewed some circuit designs that had a power source using another power source's "ground" line for a return. At least, that's what it looked like according to the names of all the sources and returns. The meeting ended with a "We have to look into this". More confusion and wasted time.

David Ashton
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re: Questions re the concept of "ground" and related "stuff"
David Ashton   5/2/2012 9:21:15 PM
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Easy. If he's grounded, he has no potential to flow. Most kids would get that....

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