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Old October 30th 09, 01:26 AM posted to rec.radio.shortwave
Bill Baka Bill Baka is offline
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First recorded activity by RadioBanter: Sep 2009
Posts: 331
Default More noise from lamps.

Bob Dobbs wrote:
wrote:
Do those kind of LED lamps cause RFI?


Probably very little if any,
even if they're pulsed at rf frequencies.

It can be a lot!!! I am an engineer and the latest thing being hyped is
switch-mode controllers for LED lighting, so you can bet some company
will design a perfectly loud lamp in China.
P.F. correction circuits will ensure that this noise is over the full
A.C. cycle and not just at the peaks anymore.
Progress.

Bill Baka