I recently purchase an AC-11 AC Adapter. On the cord of the secondary (i.e., 6 volt side), juxtaposed to the plug, is a plastic quasi-barrel shaped device. The cord is looped 360° through the device. What is the purpose of the device?
> Hi, the like barrel device is ferrite core. The wire going through made filter which cut off high frequecy noise signals from electronic device, ie from power supply. Ota
> [It's a radio frequency interference suppressor. If you were to > take it apart you would find a tube of material inside that is made
> from an iron powder held together with an epoxy. The combination of
> theiron and the coil shape make a high resistance for radio > frequencies without affecting the DC. It means that any noise your > device causes doesn't get into other equipment, and vice versa.]
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
