关键词: 电磁兼容, 电磁干扰, 滤波器, 接地

Abstract:

This paper introduces EMC design in digital circuit.Based on an analysis of the structure,sources of interference and transmission traces and characteristics of a controller,the EMC system design,structure design,filter design and grounding design are improved.A comparison between the frequency charts before and after the design proves the feasibility and correctness of the imroved desgin.

Key words: electromagnetic compatibility;electromagnetic interference;filters;ground