电磁噪声对交流适配器老化的影响

2020 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT) Pub Date : 2020-12-09 DOI:10.1109/ISSPIT51521.2020.9408685

F. Ishiyama, Y. Toriumi

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引用次数: 2

摘要

电容器是电源单元中最容易损坏的部件。在各种类型的电源单元中，交流适配器是无法检查电容器泄漏或膨胀的，因为它们是密封的，看不见的。因此，我们重点研究了变质的交流适配器在电源线上发出的电磁噪声。我们测量了它们的噪声，并用我们自己的模态分解方法对它们进行了分析。结果表明，在高温条件下，噪声强度与劣化电容器的内阻成正比。

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Aging Estimation of an AC Adapter from Generated Electromagnetic Noise

Capacitors are the parts of a power supply unit that deteriorate most easily. Among types of power supply unit, AC adapters are the ones for which it is not possible to check the leakage or bulging of capacitors, because they are sealed and invisible. Therefore, we focused on the electromagnetic noise which deteriorated AC adapters emit on the power line. We measured their noise and analyzed them with our own method of mode decomposition. It was found that the intensity of the noise is proportional to the internal resistance of the deteriorated capacitors measured in the hot condition.

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2020 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)

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