EMI滤波器技术在开关电源中的应用与研究  

Application and Research of EMI Filter Technology in Switching Power Supply

作　　者：曹海洋[1,2] 张玉成[1] 朱启伟[1] 郭攀峰[1,2] 

机构地区：[1]中国矿业大学信息与电气工程学院江苏徐州术研究中心,221008 [2]江苏省电力传动与自动控制工程技术研究中心,徐州221008

出　　处：《电源学报》2012年第1期76-79,共4页Journal of Power Supply

摘　　要：开关电源由于其可靠性高、输出稳定等优点而广泛应用于电力电子系统中,但其自身产生的电磁干扰对整个系统的影响不容忽视。为了抑制开关电源所产生的传导电磁干扰,提出了集成EMI滤波的级联技术,并针对功率变换器的输出波形进行仿真。仿真实验结果表明:这种级联的集成EMI滤波器对谐波有良好的抑制作用。Switching power supply is widely used in power electronic systems for its high reliability and stable output. Meanwhile, it should be recognized that the self-generated electromagnetic has a profound effect on the whole system. In order to suppress conducted interference generated by switching power supply, a cascaded technology about the integrated EMI filter was proposed and a simulation was carried out for the power converter output waveform. Experimental results show that the proposed cascaded technology about the integrated EMI filter has a good inhibition on the harmonic.

关 键 词：开关电源 电磁干扰 功率变换器 EMI滤波器 

分 类 号：TM919[电气工程—电力电子与电力传动]