摘要
电磁干扰(EMI)滤波器滤波器能有效抑制电网噪声,是有效提高LED驱动电源的性能,也是电源产品满足电磁兼容性(EMC)的要求技术实现途径之一。详细讨论面向LED驱动电源的EMI滤波器的设计原理、典型应用电路、参数计算及测试方法,并通过SPICE软件对EMI滤波器的性能进行仿真分析,可为EMI滤波器的设计和参数优化提供参考依据。
Electromagnetic interference （EMI） filter can resist the power grid noise effectively, can subse- quently improve the performance of LED driving power effectively, and it＇s also a technic method for electrical source products to meet the electromagnetic compatibility（EMC） require- ment. Discusses the design principles of EMI filter for LED driving power in details, then pre- sents the typical circuitries and computer-aided parameter testing method. The simulation and performance analysis of the proposed EMI filter are conducted with the SPICE software. Results show that the proposed method can be a design and parameter optimization reference for EMI filter design.
基金
广东省科技计划项目(No.2011B010200030
No.2012B010100038)
惠州市科技计划项目(No.2010B020008011
No.2011C020005005)
惠州学院校级重点项目(No.2012D06)
