| 开关电源电磁干扰抑制技术 |
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| 引用本文： | 于淑芳,何忠跃,徐红丽.开关电源电磁干扰抑制技术[J].现代电子技术,2010,33(10):193-195. |
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| 作者姓名： | 于淑芳 何忠跃 徐红丽 |
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| 作者单位： | 湖南信息职业技术学院,湖南,望城,410200 |
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| 基金项目： | 湖南省教育厅资助科研资助项目 |
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| 摘 要： | 为了抑制开关电源电磁干扰对电源本身、电网及周围环境的影响,设计者从干扰源、传播途径和受扰设备这三要素入手,分别采用有源滤波技术、屏蔽和接地技术、PCB设计技术、扩频调制技术等来抑制电磁干扰,对抑制电路中的传导干扰和辐射干扰起到了明显的效果,达到了改善开关电源电磁兼容性能的目的。也为工程设计人员提供了理论参考。
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| 关 键 词： | 开关电源 电磁干扰 滤波 屏蔽 |
Suppression Technique of Electromagnetic Interference in Switching Power Supply |
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| YU Shu-fang,HE Zhong-yue,XU Hong-li.Suppression Technique of Electromagnetic Interference in Switching Power Supply[J].Modern Electronic Technique,2010,33(10):193-195. |
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| Authors: | YU Shu-fang HE Zhong-yue XU Hong-li |
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| Affiliation: | YU Shu-fang,HE Zhong-yue,XU Hong-li (Hunan College of Information Technology,Wangcheng,410200,China) |
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| Abstract: | In order to suppress switching power supply of electromagnetic interference on the power itself,power grid and the surrounding environment,the active filtering technique,shielding and grounding techniques,PCB design technology and spread spectrum modulation technique were used to suppress the electromagnetic interference,and a good result on conducted interference and radiated interference in suppression is given from interference sources,transmission and disturbed equipment.The performance of switching pow... |
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| Keywords: | switching power supply electromagnetic interference filtering shield |
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