印制电路板设计中的抗干扰技术

With the rapid development of electronic engineering technology, the integration degree of printed circuit broad designment is becoming more and more high, at the moment, the board of EMI(electromagnetic interference) has become increasingly serious. In this paper, the electromagnetic interference of printed circuit broad are analysised firstly. And then according to the sources of interference, a number of anti-interference technologies and principles in printed circuit broad designment are proposed.