China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Anti-interference magnetic ring is commonly used in electronic circuits, anti-interference components, for high-frequency noise has a very good suppression effect, generally using manganese-zinc and nickel-zinc ferrite, today this article for you to introduce how it works.
The general process of the working principle of the anti-interference magnetic ring can be divided into the following steps:
1. The signal passes through wires or cables
The transmission of current or signals through cables or wires generates electromagnetic fields around the wires, which may include high-frequency interference signals.
Impedance frequency curve of anti-interference magnetic ring
2. Magnetic rings guide and absorb
The anti-interference magnetic ring has a high magnetic permeability that effectively guides and absorbs these high frequency components.
3. High frequency components are attenuated
The high-frequency components of the current or signal passing through the magnetic ring are attenuated, the original electromagnetic interference is suppressed, and the transmitted signal becomes purer.
To summarize, the anti-interference magnetic ring through its special magnetic material properties to absorb and attenuate the high-frequency noise signal in the circuit, play a role in reducing electromagnetic interference.
You can choose the magnetic ring according to the thickness of the wire, the size of the magnetic ring is outer diameter * inner diameter * height, close to the outlet or the inlet of the wire around 3 times the better effect. (According to the internal hole adaptation, multiple wires can set a magnetic ring, or a single wire set, need to wrap about 3 circles)
Related anti-interference magnetic loop article;