In this paper,first of all,the category and causes of the switching mode power supply EMI are analyzed.Second,the theory of EMI filter is analyzed.The end,there is a example to show the effect of the EMI filter.
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李鹏;何文忠.开关电源电磁干扰滤波器设计[J].激光与红外,2007,37(1):79~81 LI Peng; HE Wen-zhong. Research on the EMI Filter of the Switching Mode Power Supply[J]. LASER & INFRARED,2007,37(1):79~81