电动工具电磁干扰抑制技术的研究

Study on EMI suppression technology of power tools

针对一个特定的工具,结合电动工具产生电磁干扰的机理,分析如何选择电器元件满足EMC的要求,及电磁干扰(简称EMI)的问题,介绍电动工具电磁干扰的主要内容,并给出了一款电动工具的干扰抑制实例,以探索影响电磁干扰的因素及解决问题的思路。

The problem how to select each electrical element to meet the requirements of EMC for a specific tool especially for electromagnetic interference（EMI） is still a challenge for most enterprises.The mechanism of EMI is analyzed in this paper,the main source of power tool EMI is introduced,and at the same time a real case of power tool EMI suppression is also showen in order to find out the affected factors of EMI and the way we probably use to solve this problem.