How to test the quality of a chip common-mode inductor filter 2

4. Frequency characteristic inspection: Use a signal generator and oscilloscope to test the frequency characteristics of the patch common mode inductor filter. Firstly, input a sine signal within a frequency range using an m24c64-rmn6tp signal generator, and then observe the amplitude and phase changes of the output signal using an oscilloscope. A normal patch common mode inductor filter should be able to effectively suppress common mode interference signals within a specific frequency range.diode

5. Effect check: Finally, the patch common mode inductor filter can be installed in the actual circuit to check its suppression effect on common mode electromagnetic interference. By observing whether there is a significant improvement in the performance of the circuit, the quality of the patch common mode inductor filter can be preliminarily judged.

It should be noted that the above methods are only preliminary testing methods. If there is suspicion of a problem with the patch common mode inductor filter, it is recommended to find professional testing equipment and technicians for more accurate and comprehensive testing. diode