Volume 10
September 2006

By Judy Miller
Associate Publisher

249 W. 17th Street, 3rd Floor
New York, NY 10011-5300
212.204.4246
Fax 913.514.9245
jmiller2@prismb2b.com

Calendar Snapshot October Cover Story: Power Semiconductors Power Management Battery/Portable Power Management Product of the Year Award Identifies one outstanding product within the power electronics sector. Bonus Distribution: Convergence October 16-18 Detroit, MI Power Systems World October 24-26 Long Beach, CA

Prism Business Media
9800 Metcalf Avenue
Overland Park, KS 66212
PH: 913-341-1300

Dear Electronics Marketer:

Our show, Power Systems World Conference, is experiencing a
huge resurgence. This fall the conference will be held in Long Beach, California from October 24th through the 26th. This year's event
will bring together world-renowned power electronics technology
leaders, speakers, and manufacturers. They will be looking to
Power Electronics Technology and the conference to learn about
the latest technologies for designing and integrating power
electronics technologies into today's systems.

As marketers, Power Electronics Technology's September issue
gives you the best opportunity of the year to get your message
not only to 40,000 loyal readers, but to all the show attendees. The September Issue will be placed in a handy carryall bag and
will feature bonus distribution at our booth, in publication bins,
on the show floor and at all sessions. Ten sponsors (first come,
first served) will have the chance to drop a piece of literature or CD
in the bag, and thus distribute their information to thousands of
attendees.

We are also sending out a Pre-Show Newsletter with a sneak
preview of some of the exciting new products that will be unveiled
at the show. You can also use the newsletter to save time and
maximize your presence by scheduling appointments with our readers
prior to the show. Our promotional email blasts drive traffic to a special appointment setting landing page that we built for you to collect
qualified leads and request a preferred meeting date, time, and
location at the show. With all that is at stake at this show, and for
all the money you are investing, this is a very inexpensive way to
be sure that the attendees stop by your booth first! 

An exciting addition this year is the launch of our annual CEO's Of
Power Electronics Inudstry issue. This premiere issue will be
distributed at Power Systems World Conference, as well as to
the entire audience of loyal readers of Power Electronics Technology.
 This issue will be a keepsake and the opportunity it offers your
company is priceless. The CEO's of this issue will also be showcased
in a dramatic signage and back drop at our booth.

The best companies have CEO's who continue to inspire and motivate.
Armed with original ideas, undaunted by tough markets, these leaders collaborate with other members of their corporation with a common
purpose in achieving dynamic results. This is your chance to tell the
story of your CEO and share their vision of your company. 

There is no charge for the profile, regular advertising rates apply for
your ad. 

Please call me today so we can include your CEO in the premiere issue.

Best regards,

Judy Miller
Associate Publisher
212-204-4246

Test Equipment:
Accurate Testing of Transformers and Chokes Carry DC
Bias Current
by Voltech Instruments, United Kingdom

Chokes are essential elements in power conversion circuitry. During
the manufacture of these critical components, errors or a combination
of design tolerances can produce a choke that will not perform
satisfactorily in circuit. It is common practice then, either in a design
or in a production environment, to test the choke before it is fitted
to the power circuit. This article describes methods of testing a choke,
pitfalls of the common methods, and a new, versatile method of
providing dc current for test that minimizes the errors.

Power Management:
Emulated Current Mode Control Enables Very Low Duty
Cycle Operation

Modern buck regulator applications require switching regulators
to produce increasingly low output voltages with higher precision,
while operating from intermediate bus voltages and switching at
higher operating frequencies. All of these requirements translate
into a need for very low duty cycle operation from the regulators. Unfortunately, traditional peak current mode control starts to fail in
this area because it requires a blanking time in sensing the high
side current, which limits the minimum duty cycle achievable.
Authors George hariman and Chris Ridhardson, national
Semiconductor, Santa Clara, CA, discuss a new implementation
of peak current mode control that enables very low duty cycle operation.

Power Semiconductors:
Calculating Power and TJMAX For Triacs

Triacs are used to control ac loads in home appliances and in
commercial and industrial equipment. In the majority of applications
the triac will dissipate sufficient power to make thermal considerations necessary. The size of the heatsink must be calculated and the
maximum junction temperature must be predicted. The thermal
design requires several stages of calculation involving power, thermal resistance and temperature rise. In this article, author Nick Ham,
Philips Semiconductors, Haxel Grove, United Kindgom, introduces
those calculations and works through examples of triacs in real world applications.

EMC & Power Protection:
High Frequency Power Supplies In Automotive Applications

High switching frequency and high voltage operation do not do
together. Automotive power supplies can be designed to operate
at a very high switching frequency at relatively low input voltage
if we protect it from temporary load-dump conditions. High frequency operation is eminent as more electronics is being cramped in the
modern automotible. In this article, Nitin Kalje and Greg Dygert,
Maxim Integrated Products, Sunnyvale, CA, discuss several ways
to protect the downstream electronics from harsh automotive
load-dump condition.    

Power Design:
USB-Powered Bipolar Supply

The USB port on most personal computers can be a handy source
of power. It is not allowed to deliver the maximum specified current
(500mA) without software negotiation, but in practice the PC has
no direct control over current drawn from the USB port. In this article,
the authors Ben Wolde and Bjorn Starmark, maxim Integrated
Products, Sunnyvale, CA, describe a simple USB-powered ±12V
supply capable of meeting demands in audio, instrumentation,
and other industrial applications.

Lifetime Achievement Award:
The Lifetime Achievement Award recognizes a pioneering individual
for contributions made to the technology and business of power
electronics. A special feature article in this issue identifies this
year’s award winner and discusses that individual’s accomplishments
over the course of a career in power electronics. 

Imagine having 30 years of Power Electronics Technology magazine at your fingertips!

Now you can in one DVD with the History of Power Electronics!

Presenting the first-ever, historical look back at the last thirty years in the power electronics industry. This ground breaking DVD is a searchable database of
articles and issue covers dating back to the launch of our magazine in 1975,
then called Solid-State Power Conversion. Designed as a research tool for
electronics engineers, the DVD offers you the evolution of the industry at
your fingertips!

Sponsored by
National Semiconductor

To order online, click here and fill out the online order form,
or click here to download a pdf.

Using the power of our print content, PowerElectronics.com now offers
electronics professionals a quick and
easy-to-use resource for the latest
information on the topics they need
to know about. Our Web site features a database of searchable articles on
Discrete Semis, Power Management,
Motor Power Management,
Passives/Packaging, Thermal
Management and Power Systems.

As an advertiser, PowerElectronics.com offers you new sponsorship
opportunities to increase your company’s exposure, build brand awareness,
and drive traffic to your company’s Web site. The new platform offers users and advertisers a superior site experience – greater search capabilities, detailed
reporting of site usage and more flexible branding opportunities.

Click here for more online marketing opportunities or call your Sales
Representative today for details.

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