Common-mode inductance

9 month ago

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Xuzhou Jiuli Electronics Co., Ltd

10 month

Product details

Common mode inductors use principle

Suppression of common mode noise

There are many ways to suppress common mode noise. In addition to reducing common mode noise from the source, the most common way to suppress it is to use common mode inductors to filter out common mode noise, that is, to block common mode noise outside the target circuit. That is, a common mode choke device in series in the line.

The purpose of this is to increase the impedance of the common-mode loop so that the common-mode current is consumed and blocked (reflected) by the choke, thereby suppressing common-mode noise in the line.

The principle of a common mode choke or inductor

If a pair of coils in the same direction are wound around a magnetic ring of some magnetic material, when the alternating current passes through, magnetic flux is generated in the coil because of electromagnetic induction.

For the differential mode signal, the magnetic flux generated is the same size and opposite direction, and the two cancel each other, so the differential mode impedance generated by the magnetic ring is very small.

For common-mode signals, the magnitude and direction of magnetic flux are the same, and the two are superimposed on each other, resulting in a larger common-mode impedance of the magnetic ring. This characteristic makes the common-mode inductors have less influence on differential mode signals, and have good filtering performance on common-mode noise.

WHY CHOOSE US

Xuzhou Jiuli Electronics Co., Ltd. was founded on April 30, 2005, is a long-term engaged in inductors, transformers, linear electronic components manufacturing, sales of large enterprises, headquartered in Suining County Qiuji town Wanglin village, the company has about 300 employees in the production of electronic components has a very deep background and rich experience.

Our main products are Electronic Transformer、Common Mode Inductor and so on.Please contact us if necessary. Look forward to your sincere cooperation.

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Xuzhou Jiuli Electronics Co., Ltd

Audited supplier

10 month

Main Product: Electronic Transformer, High-frequency Transformer, Switching Power Supply Transformer, Differential Mode Inductor , I-type Inductor, Common Mode Inductor

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