How to Quickly And Accurately Select Ferrite Rings
You may know the usefulness of ferrites, but you may not know the advantages of ferrite rings. What are the advantages of ferrite rings? What do you need to pay attention to choosing ferrite rings? 1. The ferrite magnetic ring is easy to use. It is directly set on the cable that needs to be filtered. 2. unlike other filtering methods, it needs grounding, so there is no special requirement for structure design and circuit board design. 3, when used as a common mode choke, it will not cause signal distortion, which is very valuable for conducting high frequency signal conductors. What do you need to pay attention to buy ferrite rings? 
Before purchasing neodymium ring magnets, we must first understand the use of ferrite magnetic rings. They can be installed in the power supply, power supply line, frequency converter interference, and so on, because the ferrite magnet ring has a very wide range of uses. If the ferrite magnetic ring is purchased in the power supply, it is necessary to know the size of the ferrite magnetic ring to know the performance index of the ferrite magnetic ring, such as the amount of inductance and the number of turns. 
When buying ferrite magnetic rings, if there are samples to see the color of magnetic rings, they can usually be sampled by magnet manufacturers, and they may charge a fee for proofing. When buying ferrite magnetic rings, we know the frequency of interference. For the size of the ferrite magnetic ring, the larger the inside and outside diameter difference of the ferrite ring magnet is, the longer the axial length is, the greater the impedance is. But the inner diameter must be tightened. Therefore, if we want to get a large attenuation, we should try to use larger magnetic rings when the inner diameter of the ferrite magnetic rings is tightened.
