Switching Power Supply With 100% Aging Test

Switching power supply common mode inductor how to identify good and bad

With the advancement of technology, inductors are becoming more and more important in our daily life. Among them, switching power supply common mode inductor is a common electronic component, which is used to filter out the common mode noise and interference signal in the circuit. But how to identify the good and bad switching power supply common mode inductor?

The first step is to study the shape. The appearance of switching power supply common mode inductor is generally relatively simple, the quality of the switching power supply common mode inductor appearance is neat, no obvious scratches or deformation, the coil winding is uniform, tight, no loose or off the phenomenon. If the appearance is found to have problems, then it is likely to affect the use of the switching power supply common mode inductor.

The second step is to measure the parameters. The main parameters of the switching power supply common mode inductor are inductance value, rated current, operating temperature range and so on. The quality of the switching power supply common mode inductor should have stable inductance value and rated current, and be able to work normally within the specified operating temperature range. In addition to this, you can also judge the quality of the switching power supply common mode inductor by measuring its resistance value. Good switching power supply common mode inductor resistance value should be very small, usually below a few micro ohms.

The third step is to test the insulation performance. As an electronic component, a switching power supply common mode inductor needs to have good insulation properties to ensure safe and reliable use. Therefore, when you buy a switching power supply common mode inductor, you can test its insulation resistance value to determine whether its insulation performance is good. Normally, a good common mode inductor for switching power supply should have a high insulation resistance value.

It should be noted that different application scenarios require different types of switching power supply common mode inductors. For example, for high-frequency applications, you need to choose a high-frequency switching power supply common mode inductor; for low-frequency applications, you need to choose a low-frequency switching power supply common mode inductor. Therefore, when purchasing a switching power supply common mode inductor, you also need to choose the right model and specifications according to the specific application requirements.

In short, to identify the good and bad switching power supply common mode inductor need to consider a number of factors. By observing the appearance, measuring the parameters, testing the insulation performance, and choosing the right type and specification, you can effectively determine the quality of the switching power supply common mode inductor.

If you want to know more about switching power supply information, you can consult Xiamen Eahunt Electronics.

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Email: athene-cai@eahunt.com

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