摘要
分析了反激变换电路中电磁噪声的产生途径,给出了共模、差模干扰的电路模型,根据不同的干扰源提出相应的抑制方案,提出了一些重要的干扰抑制措施的设计方法,并针对原电路的 EMI传导测试结果,分析输入EMI滤波器的设计。实验结果证实了本文提出的电磁干扰抑制措施的有效性。
The common mechanism indueed electromagnetic noise is analyzed, and the principle of preventing electromagnetic disturbance is expatiated, which is applied in TOPSwiteh circuit, Based on different disturbance sources, the respective method of restraining is given, In addition, through analysing the conducted EMI test curve of primordial circuit, the design of EMI is presented. The experimental resnlts verify the validity of these method.
出处
《电源技术应用》
2005年第8期32-36,共5页
Power Supply Technologles and Applications
