Thought some of you might be interested in the articles listed...
---------- Forwarded Message ----------
Subject: [emrfd] 3 very good articles (understanding resistors, avoiding
ground loops, modeling skin effect in Spice)
Date: Thursday 05 October 2006 06:26 pm
From: topossibilities <topossibilities@...>
To: emrfd@...
EDN on-line has 3 very good articles that I though some of you would be
interested in.
1. Five questions about resistors
Understanding this ubiquitous part can help you avoid common circuit
problems.
The resistor is one of the simpler electronic components. Engineers seldom
examine resistor characteristics until there's a resistor-related problem
with a circuit design. You can probably resolve 90% of these problems after
answering these five key questions:
* How much voltage can I put on the resistor?
* What will be the temperature of the resistor in my circuit?
* How much surge will the resistor withstand?
* What makes a resistor fail?
* How much change in resistance can I expect?
The link for the full article is:
2. Circulating currents...a.k.a. Ground loops.
Understanding how to avoid or minimize the effects of circulating currents
can make your designs more robust. Every engineer should know the techniques
for neutralizing this insidious phenomenon. Article discussion includes
avoiding ground loops in back-panes/PCBs, digital, power supply, audio, RF
and mobile applications.
The link for the full article is:
Modeling skin effect in Spice
3. Skin effect causes increased losses as frequency increases. It also causes
changes in signal velocity, degrading signal fidelity, especially the eye
opening of high-speed data signals on long signal paths on pc boards and
backplanes.
The link for the full article is:
Ed, W1AAZ
Lots of books, parts, kits and test equipment for sale at:
If you don't see what you need, check back (adding items weekly)
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