摘要
1 Introduction The sources of EMI are both natural and human-made. Natural sources include sun and stars,as well as phenomena such as atmospherics，lightning，thunderstorms，and ESD(electrostatic discharge)．On the other hand，any electrical orelectronics equipment qualifies as a potential human-made resource of EMI．Part I has listed most of common sources of EMI．This Part will detail a few of sources that we are concerned the most．
出处
《变频器世界》
2005年第3期124-128,共5页
The World of Inverters
