Class A supply.
Class A supply.
(OP)
Greetings.
I need a AC/DC, 100W, 12V, global switching supply for an international product. Something like a open U-channel or possibly a finger safe model. I've just looked at about 120 different models/brands and I've not found A SINGLE ONE that is FCC Class A, (Conducted/Radiated Emissions), for use in a home oriented device. They are so rare,(virtually non-existent), that I am starting to suspect that none are and that you just need to add a common-mode line filter or something similar, in front of a Class B to reach Class A land.
Has anyone got any experience with this situation who could shed some light on the subject?
I need a AC/DC, 100W, 12V, global switching supply for an international product. Something like a open U-channel or possibly a finger safe model. I've just looked at about 120 different models/brands and I've not found A SINGLE ONE that is FCC Class A, (Conducted/Radiated Emissions), for use in a home oriented device. They are so rare,(virtually non-existent), that I am starting to suspect that none are and that you just need to add a common-mode line filter or something similar, in front of a Class B to reach Class A land.
Has anyone got any experience with this situation who could shed some light on the subject?
Keith Cress
kcress - http://www.flaminsystems.com





RE: Class A supply.
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RE: Class A supply.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Class A supply.
Class A is more lax than Class B, most industrial power supplies are Class B. Were you looking for ClassA because you want something cheaper?
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
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RE: Class A supply.
I asked the thread question of a supply maker today and his answer was so bizarre that I couldn't believe it, and so I ignored it. But me having the A and B reversed would sure explain it.
OK, I just confirmed that...
Thanks Jeff.. Wow, besides the screw-up, that makes my week, as a horrid torturous search for unobtainium just evaporated into manna from heaven.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Class A supply.
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Class A supply.