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class="info_con_tit"> <div id="g8uaw1poy5pb" class="n_tit"> <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 id="cntrHits">-</span></span><span>發(fā)表時間??014-03-13 11:44:00</span> <div id="g8uaw1poy5pb" class="newchang">  <div class="g8uaw1poy5pb" id="ckepop"> <a class="jiathis jiathis_txt jtico jtico_jiathis" target="_blank">分享到：</a> <a class="jiathis_button_qzone">QQ空間</a> <a class="jiathis_button_tsina"> 新浪微博</a> <a class="jiathis_button_tqq">騰訊微博</a> <a class="jiathis_button_tsohu">搜狐微博</a> <a class="jiathis_button_t163">網易微博</a> <a class="jiathis_button_tools_1"></a><a class="jiathis_button_tools_2"></a> </div> <script type="text/javascript"> var jiathis_config = { "data_track_clickback": true };</script> <script type="text/javascript" src="http://v2.jiathis.com/code/jia.js?uid=899792" charset="utf-8"></script>  </div> </div> </div> </div> <div class="g8uaw1poy5pb" id="cntrBody"> <p>貼片<strong><a href="http://cmqp.com.cn/">電感</a></strong>的用途：可用于高頻率、信號線的解決方案。適用于通訊設備的高頻線路??/p> <p>　　特性：</p> <p>　　小尺寸，可表面貼??/p> <p>　　陶瓷材料具有高Q值，高自諧頻??/p> <p>　　具有高精度，高可靠性??/p> <p>　　即使電感量一樣，飽和電流也不一樣。如果要增加電感量，就要增加圈數，而圈數多了，同樣電流下產生的磁場就大，因而鐵心就可能會飽和。為了避免鐵心飽和，這樣的電感一般是在磁導率較小的鐵心上，繞比較少的圈數??/p> <p>　　另外你看磁珠，一般只有很少的圈數，例如半圈，為了防止鐵心飽和就是一個原因??濾波用的。一般電感量較小，防止它飽和。因為里面存在很大的直流成分，如果電感量大了，就容易飽和。飽和之后就沒有濾波效果了??/p> <p>　　如果是空心電感，就沒有飽和的問題了。但這樣的地方，好象一般都用鐵心的電感??/p> <p>　　片式電感器主要有4種類型，即繞線型、疊層型、編織型和薄膜片式電感器。貼片電感常用的是繞線式和疊層式兩種類型。前者是傳統(tǒng)繞線電感器小型化的產??后者則采用多層印刷技術和疊層生產工藝制作，體積比繞線型片式電感器還要小，是電感元件領域重點開發(fā)的產品??/p> <p>　　疊層??/p> <p>　　它具有良好的磁屏蔽性、燒結密度高、機械強度好。不足之處是合格率低、成本高、電感量較小、Q值低??/p> <p>　　它與繞線片式電感器相比有諸多優(yōu)點：尺寸小，有利于電路的小型化，磁路封閉，不會干擾周圍的元器件，也不會受臨近元器件的干擾，有利于元器件的高密度安裝;一體化結構，可靠性高;耐熱性、可焊性好;形狀規(guī)整，適合于自動化表面安裝生產??/p> <p>　　繞線????/p> <p>　　它的特點是電感量范圍??mH～H)，電感量精度高，損耗小(即Q??，容許電流大、制作工藝繼承性強、簡單、成本低等，但不足之處是在進一步小型化方面受到限制。陶瓷為芯的繞線型片電感器在這樣高的頻率能夠保持穩(wěn)定的電感量和相當高的Q值，因而在高頻回路中占據一席之地??/p> </div> <div id="g8uaw1poy5pb" class="apage" id="showfenye">  <script 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