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<h3>
電感線圈的作用來自于各個領域</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"> </span><a href="http:// cmqp.com.cn "><span style="font-size: 14px">電感線圈</span></a><span style="font-size: 14px">的作用來自于各個領域，為何這樣說?那么各個領域是在哪些?電感線圈的基本作用：儲波、振蕩、延遲、陷波等??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 使用更形象的說法那就是：“通直流、阻交流”首先是在電子線路??電感線圈對交流有限流作用，它與電阻器或電容器組成高通或低通錄波器、移相電路及諧振電路??變壓器可以進行交流耦合、變壓、交流和阻抗變換等。以下是電感的作用：</span></p>
<p> </p>
<p><span style="font-size: 14px"> 一、阻流作??</span></p>
<p> </p>
<p><span style="font-size: 14px"> 線圈中的自感電動勢總是與線圈中的電流變化相對抗。主要可分為高頻阻流線圈及低頻阻流線圈??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 二、調諧與選頻作用:</span></p>
<p> </p>
<p><span style="font-size: 14px"> 電感線圈與電容器并聯(lián)可組成LC調諧電路。即電路的固有振蕩頻率f0與非交流信號的頻率f相等，則回路的感抗與容抗也相等，于是電磁能量就在電感、電容之間來回振蕩，這就是LC回路的諧振現(xiàn)象。諧振時由于電路的感抗與容抗等值又反向，因此回路總電流的感抗最小，電流量最??指f=f0的交流信??，所以LC諧振電路具有選擇頻率的作用，能將某一頻率f的交流信號選擇出來??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 1、高頻阻流線圈：高頻阻流線圈也稱高頻扼流線圈，它用來阻止高頻交流電流通過??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 高頻阻流線圈工作在高頻電路中，多用采空心或鐵氧體高頻磁心，骨架用陶瓷材料或塑料制成，線圈采用蜂房式分段繞制或多層平繞分段繞制??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 2、低頻阻流線圈：低頻阻流線圈也稱低頻扼流圈，它應用于電流電路、音頻電路或場輸出等電路，其作用是阻止低頻交流電流通過??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 通常，將用在音頻電路中的低頻阻流線圈稱為音頻阻流圈，將用在場輸出電路中的低頻阻流線圈稱為場阻流圈，將用在電流濾波電路中的低頻阻流線圈稱為濾波阻流圈??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 低頻阻流圈一般采??ldquo;E”形硅鋼片鐵心(俗稱矽鋼片鐵??、坡莫合金鐵心或鐵淦氧磁心。為防止通過較大直流電流引起磁飽和，安裝時在鐵心中要留有適當空隙?？招碾姼衅?、磁心電感器和銅心電感器一般為中頻或高頻電感器，而鐵心電感器多數(shù)為低頻電感器??/span></p>
<p> </p>
<p> </p>
<p><span style="font-size: 14px"> 電感器品質因數(shù)的高低與線圈導線的直流電阻、線圈骨架的介質損耗及鐵心、屏蔽罩等引起的損耗等有關??/span></p>
<p> </p>
<p><span style="font-size: 14px"> 總之;在低頻時，電感一般呈現(xiàn)電感特性，既只起蓄能，濾高頻的特性。同時在高頻時，它的阻抗特性表現(xiàn)的很明顯。有耗能發(fā)熱，感性效應降低等現(xiàn)象。不同的電感的高頻特性都不一樣??/span></p>
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