sci.electronics.basics

Re: Ferite core?


Sjouke Burry wrote:

> Ivan Vegvary <ivanvegvary_at_gmail.com> wrote in

> 

>> Just purchased a 12 volt adapter for my CPAP breathing machine.  It

>> consist of a cigarette lighter male plug on one end and a 3.5 mm plug

>> on the other.  However, each line has a heavy, hefty cylinder thereon

>> that I believe is probably a ferite core.  What's the purpose of these

>> things?

>> 

> Stopping high-frequency interference from leaking in or out.

> The cable otherwise will act as an arial.

AARGH! _AERIAL_. "Arial" is a font.

And, yes, they're to keep the ambient electromagnetic noise out of the

circuit. ;-)

Hope This Helps!

Rich



Written by Rich Grise 05/10/2011 18.52.07
Check some pics on this site!
26/05/2012 0.52.16