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What is the function of the filter of the shielding box?

Author:admin   AddTime:2021-04-20

What is the function of the filter of the shielding box? In response to this problem, I will introduce the following content for you:

The filter is a connector, and then it has a filtering function. As we all know, electromagnetic compatibility design considers three aspects, interference sources, propagation coupling paths, and sensitive equipment to solve electromagnetic compatibility. The filter connector is just one of the best ways to solve the coupling path. Although it also has many problems of its own.

Key indicators of shielding box filter:

There are many pins in the filter, and the signals transmitted on different signal lines cannot be different due to the difference in filtering performance of each pin. If that happens, differential mode interference will be introduced, and instead of curing the deafness, it will be dumb. Therefore, the consistency of the devices added on each pin of the filter component is the key control point.



Structure shape:

The internal structure of the shielding box filter is various, the simple one is a filter capacitor, and the complex passive filter network composed of inductance and capacitance. Its appearance is the same as that of ordinary plugs and sockets, and it is completely replaceable. The only difference is that the filter connector only allows signals of part of the frequency band to pass.

The characteristics of shielding box filtering:

The shielding box filter is generally a low-pass filter, and the order is not particularly high, resulting in its falling attenuation transition band at the 3dB cut-off frequency point is not very steep, generally a second-order filter.

Absorbing Material:https://www.goodsmaterial.com/

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