本文介绍了无刷直流风机电磁兼容关键项目及产生机理，并以不同种类电机应用为例，分析了无刷直流风机单体EMC评价方法建立的可行性。%This paper introduces the key item and productioin mechanism of EMC of brushless DC fan. And taking the application of different kinds of motors as example, it analyzes the feasibility of establishing the evaluation meth-odology of monomer EMC of brushless DC fan.
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