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铜片环绕在高频变压器可防止对相邻电路造成干扰</h3>
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<span>文章出处?a href=""><a href="http://cfdz.nsw888.com">深圳市晨飞电子有限公?/a></a></span><span>网责任编辑：<a href="http://cfdz.nsw888.com">NSW</a></span><span>作者：<a href="http://cfdz.nsw888.com">NSW</a></span><span>人气?span
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<p> 作为开关电源最主要的组成部分，<strong>高频变压?/strong>相对于传统的工频变压器有以下优点：利用铁氧体材料制成的高频变压器具有转换效率高、体积小巧的特点；而传统的工频变压器工作在50Hz下，输出相同功率时需要较大的截面积而导致变压器体积庞大，不利于电源的小型化设计，而且电源转换效率也低于开关电源?/p>
<p> 一般我们为防止<strong>高频变压?/strong>的泄漏磁场对相邻电路造成干扰，可把一铜片环绕在变压器外部，该屏蔽带相当于短路环，能对泄漏磁场起到抑制作用，屏蔽带应与地接通?br />
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