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PowerLines by Linnea Brush
August 16, 1999
Polling for Power
Power Channels: Batteries and Portable Power, Switch-Mode Power, Automotive Electronics, Power Quality Protection, Renewable Energy, Communications Power, Motion Control, Power Components
If you could get the inside track on what customers want in a power electronic design, you'd take advantage of it, right? Well, the Darnell website has such a resource that you may not be using (or even be aware of). It's called the Power Poll, and it provides new industry information every week.
Maybe you think web polls are frivolous. Some of them do ask ridiculous questions, such as "Which finger is your favorite?" (Yes, Yahoo did ask this.) And who responds to these things? If the question is serious, can you really trust how people respond?
Darnell's Power Poll gets around some of this. First of all, we never ask questions like, "What's your favorite punctuation mark?" Our site is visited by serious power folks (the non-serious ones wouldn't even understand the questions), so you can be assured that responses are from industry representatives. Some of the questions even get 50 or more responses, which provides a fairly good sample. You only need about 31 responses (minimum) for reasonable statistical sampling.
The real value with Darnell's Power Poll is looking across several questions to get trends in a particular area. I picked four recent questions as an example:
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We would like to hear your comments on the topics discussed in this column. We welcome the opportunity to publish opposing opinions. Please email Jeff Shepard at jshepard@darnell.com.
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