Class D without output filter

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CE is a bit of a joke, especially with imports, no required testing, self certification and if it fails the MD can be fined or go to jail, hard to enforce when the company is overseas....I know of a container full of SMPSs that we sourced from abroad a few years ago, samples perfect, job lot rather lacking in the EMC department, as we were rebranding our MD would have been liable, he was not a happy bunny that day, so we binned the lot (well recycled).
On EMC I did a thread with a series of articles by Keith Armstrong on EMC and switching designs, didn't generate much interest for the DIYers, many comments were this is DIY, EMC doesn't matter.....my view is if EMC doesn't matter then neither does signal integrity, they are the same thing at the end of the day.
 
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