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What is inside that small cylinder in a laptop adapter?



 
 
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  #1  
Old August 29th 12, 09:13 AM posted to uk.comp.vendors
AliceElma
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Posts: 1
Default What is inside that small cylinder in a laptop adapter?


What is inside that cylinder thing that is at the end of a AC adapter of
a laptop or notebook?
Is it like a load matching thing? Current limiter?






























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AliceElma
  #2  
Old September 9th 12, 07:34 AM posted to uk.adverts.computer,uk.comp.vendors
News Reader[_2_]
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Posts: 4
Default What is inside that small cylinder in a laptop adapter?


"AliceElma" wrote in message
...

What is inside that cylinder thing that is at the end of a AC adapter of
a laptop or notebook?
Is it like a load matching thing? Current limiter?





SNIP








Hi,


Could be a choke (balun? grins), to reduce, possible, interference, or
signal reflection ( [ / ] refraction).

Any tech ex(pert)s?


Best,



News Reader



  #3  
Old September 9th 12, 07:44 PM posted to uk.adverts.computer,uk.comp.vendors
TMack[_4_]
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Posts: 7
Default What is inside that small cylinder in a laptop adapter?

On Sun, 09 Sep 2012 07:34:44 +0100, News Reader wrote:

"AliceElma" wrote in message
...

What is inside that cylinder thing that is at the end of a AC adapter
of a laptop or notebook?
Is it like a load matching thing? Current limiter?


Ferrite bead - "a passive electric component used to suppress high
frequency noise in electronic circuits."

http://en.wikipedia.org/wiki/Ferrite_bead

--
Tony
'09 FJR1300, '04 Ducati ST3, '87 TW200,
'94 PC800, OMF#24
 




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