利用扩频技术抑制开关电源电磁骚扰

Optimize the EMI of Switch Power by Utilizing Spread Spectrum Technic

通过分析开关电源的骚扰特性,提出一种基于扩频技术的方法降低开关电源的电磁骚扰(EMI),并通过试验证明这种方法非常有效。对开关电源的设计和骚扰抑制具有现实的指导意义。

By analyzing the EMI special character of switch power, a new technique based on spread spectrum had been found out and used to optimize the EMI of switch power. This new way has been validated by test, which will be quite practical for the design and EMI control of switch power.