Volume 2
December 12, 2005

By Judy Miller
Associate Publisher

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New York, NY 10011-5300
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jmiller2@primediabusinesss.com

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What makes a great b-to-b ad?

American Business Media lists seven simple rules.
(Booklet available, please call for a copy.)

1) keep it simple
2) keep it short   
3) be entertaining  
4) sell the brand  
5) sell the product  
6) think big 
7) break the rules

When you think of the marketing dollars invested into media placement, it just makes sense to spend time evaluating if your ad is doing it's job. Though many of the same attributes that work for consumer advertising are true for b-to-b (smart thinking, clear objectives and unparalleled creativity), it is actually an easier task to create a b-to-b ad. Afterall, you  already have a built in audience looking to learn more about their business.

In January,  we are offering you an opportunity to test the effectiveness of your ad for FREE!  Readex Research (a division of the highly respected Harvey Research Corp.) is an independent firm that tests a selected issue of a magazine on readership of editorial  features AND advertising . Every half-page or larger advertiser in the January issue of Power Electronics Technology will have their ad tested, and receive a free copy of this report. The Ad Perception Study will help you gauge the effectiveness of your advertising message, and give you crystal clear insight to whether or not your ad is working. This will be invaluable to you in your pursuit of advertising excellence.

Thanks to your support, 2005 was a very successful year for Power Electronics Technology. I look forward to speaking with you soon!

Judy Miller
Associate Publisher
212-204-4246

Cover Feature: Power Semiconductors
Response Time and Frequency Implications in Overcurrent Protection Circuits
While fast response time is generally considered optimum, the implications are neither broadly understood nor readily quantified within the power electronics industry. Todd J. Kazmirski, Cave Creek, identifies the transistor loss components that occur during an overcurrent event and shutdown cycle. He explains and quantifies the time dependency of conduction, switching, and avalanche losses, and how these can become destructive, particularly with slow response times or high operating frequencies. Calculations are presented for both hard and soft overcurrent events.

Power Management:
Digital Feedback Controls Supply Voltage Accurately
Simon Bramble and Paul Holden, Maxim Integrated Products, explain how to design and build an efficient power supply system whose output voltage (VOUT) can be accurately set to a digitally selected value. To ensure an accurate output voltage, the system uses digital closed-loop feedback. This feedback corrects for offsets and drifts in the power supply as well as for changing loads. In addition to an adjustable step-down regulator, the power supply system comprises an ADC, a DAC, a voltage reference, and a 8051-compatible microcontroller (ìC).

Battery/Portable Power Management:
Better Battery Management Through Digital Power
Over the years, Battery Management technology has relied on microcontrollers to terminate charging, detect battery faults and estimate capacity. In many cases, those microcontrollers are off-the-shelf products without specific peripherals to address advanced battery management issues, such as real-time performance analysis. Dave Freeman, Texas Instruments, discusses how digital power products offer many possibilities for better battery management. 

Magnetics:
Assessing the Benefits of Coupled Inductors in Multiphase Power Converters
There has been considerable talk within the power supply industry about the operation and benefits of using coupled inductors as the magnetic components for multi-phase buck regulators supplying power for processors in desktop, notebook and server applications. The proponents claim that the use of coupled inductors enables better transient response, higher efficiency and reduction in overall cost. John Gallagher, Pulse, assesses these claims to determine whether they have merit and if so, to what extent. The article describes the state-by-state operation of the coupled inductor topology and compares these results with those of a standard non-coupled multi-phase topology

EMC & Power Protection:
Evaluating TVS Protection Circuits with SPICE
SPICE circuit simulations are a powerful design tool to analyze a system’s immunity against conducted EMI surge voltages. SPICE can serve as a valuable tool to validate and optimize the performance of surge protection circuits using transient voltage suppression (TVS) avalanche diodes. The small size, fast response time, low clamping voltage, and low cost of the TVS diodes provides for an effective solution to solve surge problems. Jim Lepkowski and William Lepkowski, ON Semiconductor, compare SPICE simulations with bench tests to demonstrate the ability of TVS avalanche diodes to clamp the surge voltages caused by noise sources such as inductive devices and load switching.

Click here for a pdf.

Don't forget, if you run an ad in the January issue of Power Electronics Technology, and would like to see how our readers perceived your ad in terms of attention-getting ability, believability and information value, you receive a FREE Ad Perception Study!

Call your Sales Representative today for more details!

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

Now you can in one CD 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 CD 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 CD offers you the evolution of the industry at your fingertips!

Special Discount Rate! Pre-order your History of Power Electronics CD and receive the discounted rate of $120 (plus tax and shipping/handling) — that's a savings of 20%!

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

Using the power of our print content, we’ve redesigned PowerElectronics.com to offer electronics professionals a quick and easy-to-use resource for the latest information on the topics they need to know about. Our new 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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