PCB設計中的電磁兼容性考慮

摘要：　　本文著眼于高速電子設計技術的發展以及國內外的EMC規范，介紹了電磁兼容的一般概念，說明了電磁兼容在PCB設計中的重要性以及常見的電磁干擾表現形式，并詳細闡明了如何在高速PCB設計中避免EMI的干擾而使電子產品符合EMC的規范，最后討論了更高速的PCB設計中防止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