Tech Toys
Come
on, admit it. You still get a little
thrill when someone hands you a
beautifully wrapped package with your
name on the tag. So why not return the
favor? Check out this year's batch of
Tech Toys for some ideas.
--Joan Lynch, Managing
Editor
EDN Hands-On
Project
Unveiling the hidden secrets of PC-bus
architectures
Theoretically, the new PC architectures
and buses provide a system with lots of
bandwidth to transfer data and feed the
CPU. To explore the reality behind the
theory, a group of PC experts and I set
out to test these architectures. Find out
what we discovered about Slot 1, AGP,
PCI, USB, and more.
--Markus Levy, Technical
Editor
Switching-regulator
design lowers noise to 100 µV
Expending unconscionable amounts of
bypass capacitors, ferrite beads,
shields, Mumetal, and aspirin to
ameliorate noise-induced effects is no
longer the only way to tackle
switching-regulator noise. Using a
low-noise IC, you can now design
switching converters with only 100 µV of
noise.
--Jim Williams, Linear
Technology Corp
Consider IGBTs
over power MOSFETs at frequencies to 100
kHz
Evaluating the performance of IGBTs and
high-voltage power MOSFETs for switching
applications requires a common set of
applications and assumptions. Comparisons
of maximum current vs frequency reveal
that IGBTs are competitive at frequencies
as high as 100 kHz.
--Fred Lokuta and Wallace
Williams, Harris Semiconductor
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