摘要
介绍了EM I电源滤波器中的插入损耗性能指标的重要性;分析了电源电磁干扰产生的机理及电源滤波器的作用;说明了插入损耗的定义、测试原理以及指标种类;详细描述了在屏蔽室测量和频谱分析仪动态测量两种插入损耗测试的方法;最后,强调了电源滤波器使用注意事项并指出了它的研究开发方向。
The importance of the insertion loss of performance index in EMI power filter is introduced. The function of power filter and the mechanism of electromagnetic interference is analyzed. The definition, test principle and index kind of insertion loss are stated. The two good methods of the testing in screen room and the dynamic test in frequency spectrum analysis meter for insertion loss are described in detail. Finally, the regulation of power filter are emphasized and its research and development direction are pointed out.
出处
《电气开关》
2006年第1期1-4,共4页
Electric Switchgear
关键词
电磁干扰
电源滤波器
插入损耗
屏蔽
动态
测试
electromagnetic interference
power filter
insertion loss
screen
dynamic state
test
