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-   -   What is inside that small cylinder in a laptop adapter? (http://www.computerbanter.com/showthread.php?t=166937)

AliceElma August 29th 12 09:13 AM

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

News Reader[_2_] September 9th 12 07:34 AM

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




TMack[_4_] September 9th 12 07:44 PM

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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