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电感器的电感作用</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><span style="font-size: 14px"> 贴片电感，是用绝缘导线绕制而成的电磁感应元件。属于常用的电感元件。贴片电感的作用:通直流阻交流这是简单的说法，对交流信号进行隔离,滤波或与电容?电阻器等组成谐振电路.调谐与选频电感的作用：电感线圈与电容器并联可组成LC调谐电路。贴片电感在电路中的任何电流，会产生磁场，磁场的磁通量又作用于电路上?/span></p>
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<p><span style="font-size: 14px"> 当贴片电感通过的电流变化时，贴片电感中产生的直流电压势将阻止电流的变化。当通过电感线圈的电流增大时，电感线圈产生的自感电动势与电流方向相反，阻止电流的增加，同时将一部分电能转化成磁场能存储于电感之?当通过电感线圈的电流减小时，自感电动势与电流方向相同，阻止电流的减小，同时释放出存储的能量，以补偿电流的减小。因此经电感滤波后，不但负载电流及电压的脉动减小，波形变得平滑，而且整流二极管的导通角增大?/span></p>
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<p><span style="font-size: 14px"> 色环电感，的作用1：色环电感有阻流作用：色环电感线圈中的铜芯总是与线圈中的电流变化抗。色环电感对在电路中使用的交流电流有阻碍作用，阻碍作用的大小称感抗XL，单位是欧姆。它与电感量L和交流电频率f的关系为XL=2πfL,色环电感主要可分为高频阻流线圈及低频阻流线圈?/span></p>
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<p><span style="font-size: 14px"> 电感的作?：色环电感有调谐与选频作用：色环电感与电解电容并联可组成LC调谐电路。色环电感在谐振时电路的感抗与容抗等值又反向，即电路的固有振荡频率f0与非交流信号的频率f相等，则回路的感抗与容抗也相等，色环电感的使用一般多不会很高，在电路中使用的色环电感一般来说多还算是比较稳定的?/span></p>
<p> </p>
<p><span style="font-size: 14px"> 电感的作?：色环电感的最大主要用筛选信号、过滤噪声、稳定电流及抑制电磁波干扰等作用。色环电感器的基本作用就是充电与放电，但由这种基本充放电作用所延伸出来的许多电路现象，使得色环电感有着种种不同的用途。如今色环电感已经被广大客户所运用了，小小的电感起到的作用却是不小视的?/span></p>
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