【摘要】 诊断开关电源传导干扰的主要性质，分别测量共模干扰和差模干扰，是正确设计电源ＥＭＩ滤波器的第一步。介绍了共模干扰和差模干扰测量的三种方法，并讨论、比较了三种方法各自的优缺点。更多还原

【Abstract】 It is difficult to design and build an effective power line EMI filter for switched mode power supply without distinguishing the differential or common mode component from conducted noise. Three methods to diagnose differential mode and common mode noise are discussed in this paper, the comparsion of these methods also be pre- sented.更多还原