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EMC for Product Designers, 5th Edition by Tim Williams

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Appendix C

Case studies

This section discusses a few real-life case studies of electronic product design, each of which illustrates some aspects of the EMC design principles discussed earlier in this book. While based on real products, the details have, of course, been dis-identified.

C.1 Cockpit display

A common EMC problem arises with large (say, 10” or 12”) LCD displays driven with standard VGA or high resolution video. The product featured here was cost limited and was required to be daylight visible, but also had to meet stringent radiated RF emission limits, not just the standard Class B ITE limits of EN 55022. Because of the first two requirements, the third couldn’t be met by a shielded window – it would have been too expensive and would ...

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