The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
Subject: Ground loops?
Date: Fri, 13 Sep 2002 15:53:58 +0100
NNTP-Posting-Host: modem-64-11-60-62.vip.uk.com (184.108.40.206)
X-Newsreader: Microsoft Outlook Express 5.50.4522.1200
Say I had three printed circuit boards. Each board requires a +5V supply and
ground, and in addition the boards are inter-connected via ribbon cables
using separate cables. Let's say the environment is a little noisy from an
electrical point of view, so the ribbon cables use the every second
conductor is grounded type construction.
First, what is the best way to connect power? My instinctive reation to this
is star ground where each card's ground goes to a common point. Similarly
for the +5V.
Second, should the grounds on the ribbon cable connectors be grounded on
both ends? Again my reaction is grounding at both ends creates ground loops
that could pick up noise from the environment. My feeling is that only one
end of the connectors chould be grounded and the other ends left floating.
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup