LED驱动电源的电磁兼容测试及整改

EMC test and rectification of LED drive power

LED照明产品在设计过程中引入的大量非线性电子元件,会产生一定的无线电骚扰和谐波,产品的电磁兼容性能不易满足现行的国际与国家标准。该文以一照明LED灯为例,针对其较易不合格的EMC项目如电源骚扰电压和辐射骚扰的测试,分析其不合格原因,给出LED驱动电源EMC的整改思路。对整改措施的有效性和可行性分析,也可为其他电子设备的EMC整改提供参考。

A certain degree of radio disturbance and harmonic wave will occur since a large number of non-linear electronic components are used in LED production,and EMC test results of the products are not ideal according to current international and national standards. Based on test practice, the authors demonstrated some failure items in EMC test such as power failure disturbance voltage and radiation harassment, analyzed the failure causes and gave corrective ideas. It has certain reference value for the EMC design of other electronic equipments.