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音箱分頻器中的電感線圈你了解多少??/h3>
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<span>文章出處??a href=""><a >深圳市晨飛電子有限公??/a></a></span><span>網責任編輯：<a >NSW</a></span><span>作者：<a >NSW</a></span><span>人氣??span
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<p> <span style="font-size: 14px"> 音箱分頻器中做為低通濾??過濾高頻成份)通常使用電感線圈，一般有不帶鐵芯的空芯電感和帶鐵??磁芯)電感。分頻頻率和電感量有關，分頻頻率越低，電感量要求越大??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 線圈的電感量和圈數(shù)相關，電感量越大要求圈數(shù)越多。鐵芯電感由于有磁性內芯，要達到需要的電感量，需要的圈數(shù)較少。但達到同樣的電感量，空??/span><strong><a href="http://m.cmqp.com.cn/Products/products-12081703391.html"><span style="font-size: 14px">電感線圈</span></a></strong><span style="font-size: 14px">的圈數(shù)比鐵芯電感要多得多。鐵芯電感在通過大電流的情況下會呈現(xiàn)磁通量飽和現(xiàn)象，導致特性變化或失效，發(fā)生失真。但空芯電感則不易發(fā)生磁飽和，失真也較小??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 有人認為用空芯電感比用鐵芯電感一定會更好，這種看法不夠全面?？招倦姼须m不易磁飽和，但要達到所需的電感量，圈數(shù)要多，使用的線材就要更長，線圈的電阻更大，損耗就更大!而且本錢、重量和體積也相應增大??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 鐵芯電感在大電流情況下容易飽和，但如果用于小功率喇叭(比方高音)由于圈數(shù)少，線材短，線圈電阻較低，損耗就更小。所以，對分頻器電感是用空芯還是鐵芯，要看是針對什么功率的喇叭，大功率的喇叭首選空芯電感而小功率的喇叭用空芯電感則未必好??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 當然，有些廠家岀于成本考慮，對于使用大功率喇叭(300W以上)音箱分頻器也用鐵芯電感，就容易在大功率工作時產生較大的失真，聽起來聲音不干凈了??/span></p>
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