PCB設(shè)計(jì)中的電磁兼容性考慮

摘要：　　本文著眼于高速電子設(shè)計(jì)技術(shù)的發(fā)展以及國(guó)內(nèi)外的EMC規(guī)范，介紹了電磁兼容的一般概念，說(shuō)明了電磁兼容在PCB設(shè)計(jì)中的重要性以及常見(jiàn)的電磁干擾表現(xiàn)形式，并詳細(xì)闡明了如何在高速PCB設(shè)計(jì)中避免EMI的干擾而使電子產(chǎn)品符合EMC的規(guī)范，最后討論了更高速的PCB設(shè)計(jì)中防止EMI的一般方法。 敘詞：印制電路板 電磁干擾 電磁兼容性 Abstract：In this paper, with a view to the development of high speed electronic design technology and the criterion of EMC, the general conception of EMC was introduced, then the importance of EMC in PCB design and common represented forms of EMI were discussed ,and then the techniques of avoiding EMI in PCB design to measuring up the criterion of EMC were shown in detail. The common methods of preventing EMI in higher speed PCB design was put finally. Keyword：Printed Circuit Board Electromagnetic Interference Electromagnetic Compatibility