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The wonders of AM



 
 
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Old December 30th 18, 08:26 PM posted to uk.tech.digital-tv
Brian Gregory[_2_]
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Posts: 21
Default The wonders of AM

On 19/12/2018 09:25, Roderick Stewart wrote:
I wonder if there's a particular brand, or type, or circuit
arrangement that makes some LED lamps cause interference while others
are perfectly fine?


It's bound to vary from brand to brand.
The problem is that they are driven by switching regulator type circuits
(though typically more like constant current output rather than constant
voltage). Like any switch mode power supply they can be designed well or
designed poorly with respect to electromagnetic compatibility, and
poorly designed is, of course, almost always cheaper.


--

Brian Gregory (in England).
 




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