摘要
电磁干扰EMI
电磁干扰是一种不需要的电磁发射，能引起不同程度的噪声响应，故障或者电子设备性能的下降。这种噪声通常发生在1OkHz到30MHz的频率范围内。为了降低这种噪声，通常使用电磁干扰滤波器。电磁干扰滤波器是一种无源电子设备，用来抑止在输电线路或者信号线路中的传导干扰。这种滤波器可以用来抑止设备本身产生的噪声，以及其它装置产生的噪声，并可以在设备的电子环境中改善其功能性。
EMI
Electromagnetic interference （EMI） is a type of undesirable electromagnetic emission that causes various levels of noise response, malfunctioning, or degradation in the performance of electrical equipment. This noise is most otten found in the frequency range of 10 kHz to 30MHz. To reduce this noise, an EMI filter is otten used. An EMI filter is a passive electronic device used to suppress conducted interference present on any power or signal line. The filter may be used to suppress noise generated by the device itself, as well as noise generated by other equipment, and to improve the functionality of the device within its electrical environment. EMI filters can include components to suppress both common-mode （line-to ground） and differential-mode （line-to-line） interference.
出处
《UPS应用》
2007年第2期64-64,共1页
UPS Applications
