<p>从形成特点来看，噪声干扰分串模干扰与共模干扰两种。串模干扰是两条电源线之间(简称线对线)的噪声，共模干扰则是两条电源线对大地(简称线对地)的噪声。</p>
<p><img alt="滤波设计" data-entity-type="file" data-entity-uuid="1c61e09d-c7e0-4b50-9008-a03e3e310f5b" height="601" src="/sites/default/files/inline-images/01_1.jpg" width="610" /></p>
<p><img alt="滤波设计-2" data-entity-type="file" data-entity-uuid="da5ff5f4-806b-4a21-90fb-42532eb61e02" height="338" src="/sites/default/files/inline-images/02_1.jpg" width="613" /></p>
<p><img alt="滤波设计-3" data-entity-type="file" data-entity-uuid="adf5a1c2-5e5b-42f9-91c4-ce49f17fe1b8" height="861" src="/sites/default/files/inline-images/03_1.jpg" width="614" /></p>
<p><img alt="滤波设计-4" data-entity-type="file" data-entity-uuid="cb6f78e2-fda9-4a3e-b036-f5ebae9280f8" height="287" src="/sites/default/files/inline-images/04_0.jpg" width="611" /></p>
<p><img alt="滤波设计-5" data-entity-type="file" data-entity-uuid="5a2eed18-e1c3-4f7f-9c48-5d4f5640c541" height="1099" src="/sites/default/files/inline-images/05_0.jpg" width="614" /></p>
<p><img alt="滤波设计-6" data-entity-type="file" data-entity-uuid="40ec5ed7-05c0-4939-b30e-c83c2b38635c" height="286" src="/sites/default/files/inline-images/6_1.png" width="613" /></p>
<p>注：图片内容来自《开关电源设计入门》</p>
<p>文章转载自：<a href="http://blog.csdn.net/qlexcel">qlexcel的专栏</a></p>
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