| 开关电源中30MHz～300MHz高频共模噪声干扰的抑制 |
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| 引用本文： | 许陵.开关电源中30MHz～300MHz高频共模噪声干扰的抑制[J].漳州师范学院学报,2007,20(2):58-61. |
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| 作者姓名： | 许陵 |
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| 作者单位： | 漳州师范学院教育科学与技术系 福建漳州363000 |
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| 摘 要： | 开关电源的干扰主要有共模噪声干扰和差模噪声干扰两种,共模噪声干扰的频率范围比较宽,形成复杂,其中30～300MHz是最难抑制的频段.以一款通信用的开关电源为例,详细介绍了如何采用增加高频扼流圈的方法,对30～300MHz频段的噪声进行抑制.
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| 关 键 词： | 开关电源 共模噪声干扰 扼流圈 |
| 文章编号： | 1008-7826（2007）02-0058-04 |
| 收稿时间： | 2006-05-10 |
| 修稿时间： | 2006-05-10 |
The Restraint of the Common Mold Noise Interference of the Switch Power Supply inside 30~ 300MHzs High Frequency |
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| XU Ling.The Restraint of the Common Mold Noise Interference of the Switch Power Supply inside 30~ 300MHzs High Frequency[J].Journal of ZhangZhou Teachers College(Natural Science),2007,20(2):58-61. |
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| Authors: | XU Ling |
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| Institution: | Department of Education Science and Technology, Zhangzhou Normal University, Zhangzhou, Fujian 363000, China |
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| Abstract: | The interference of the switch power supply has primarily two kinds of with the common mold and the differ mold noise interference, the frequency scope of the common mold noise interference comparison breadth, formation is complicated, among them 30-300 MHzs is the most difficult in the restraint of the segment of frequency.The text regard a switch power supply that correspondence use, detailed introduction how adopting the methods in increment high frequency common mold grip flow turn, proceeds to repress as the voice of noise for 30-300 MHzs frequency. |
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| Keywords: | EMI |
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