How to Identify the Quality of Common Mode Inductors in Switching Power Supplies 3

4、 Maintenance and upkeep of common mode inductors

In order to ensure the normal operation and prolong the service life of common mode inductors, regular maintenance and upkeep are necessary.diode

1. Cleaning: Regularly clean the common mode inductor, remove dust and impurities, and keep its surface clean.

2. Protection: Common mode inductors should be placed in a dry, dust-free, and non corrosive gas environment. Avoid common mode inductors from being exposed to moisture, heat, or pressure.

3. Regular testing: Regularly use testing instruments to test common mode inductors, checking their frequency characteristics, impedance characteristics, DC resistance, mutual inductance characteristics, etc.

4. Timely replacement: If faults such as short circuit, open circuit, or impedance abnormality are found in the common mode inductor, it should be replaced in a timely manner.

In summary, common mode inductance plays an important filtering role in switching power supplies and has a significant impact on power performance and anti-interference ability. By testing the frequency characteristics, impedance characteristics, DC resistance, mutual inductance characteristics, etc. of common mode inductors, their quality can be determined. At the same time, regular maintenance and upkeep of common mode inductors can extend their service life and ensure their normal operation. diode