how to use the magnetic ring core

Magnetic ring, which is an anti-interference component commonly used in electronic circuits, has a good suppression effect on high-frequency noise. It is generally made of ferrite material (Ni-Zn), and the magnetic ring has different impedances at different frequencies. Generally, the impedance is very small at low frequencies, and the impedance of the magnetic ring increases sharply when the signal frequency increases. Everyone knows that the higher the frequency of the signal, the easier it is to radiate out, and the general signal lines have no shielding layer, so these signal lines become good antennas, receiving various messy high-frequency signals in the surrounding environment, and These signals are superimposed on the originally transmitted signal, and even change the original useful signal transmitted.

Magnetic ring is a common magnetic component, usually used to make electronic equipment such as inductors and transformers. The use of the magnetic ring can be done through the following steps:

Selecting a suitable magnetic ring: Selecting a suitable magnetic ring needs to consider the material, size, magnetic permeability and other factors of the magnetic ring, as well as the requirements of the application scenario.

Coil winding: wind the insulated wire into a coil, and wind the coil on the magnetic ring by passing the inner diameter and outer diameter of the magnetic ring through the coil.

Install the magnetic ring: pass the wound coil through the magnetic ring, and fix the magnetic ring at the predetermined position.

Adjust circuit parameters: By adjusting circuit parameters, such as inductance value, operating frequency, etc., to achieve the desired circuit effect.

It should be noted that the use of the magnetic ring also needs to abide by some basic rules, such as the coil of the magnetic ring should be uniform, tight, and well insulated. The size and material of the magnetic ring should match the application scene to avoid problems such as magnetic field interference and loss.