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MOSFETS </a> </div> </div> <div class="rig_con"> <div class="top"> <h1 class="title"> “過濾裝置”對于“共膜電感”有哪些重要性 </h1> <div class="meg"> <div class="firsts">發布時間：2021-08-26</div> <div class="">已被瀏覽：<span>1523</span>次</div> <div class="shape"> <span>分享到：</span> <div class="bdsharebuttonbox" style="display:inline-block;vertical-align:middle;"><a href="#" class="bds_more" data-cmd="more"></a><a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空間"></a><a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博"></a><a href="#" class="bds_sqq" data-cmd="sqq" title="分享到QQ好友"></a><a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信"></a><a href="#" class="bds_renren" data-cmd="renren" title="分享到人人網"></a></div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":"0","bdSize":"16"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script> </div> </div> </div> <div class="con"> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">許多人應該熟悉共膜<a href="http://www.forsakring-online.com/"><span style="color:#FF0000;"><strong>電感</strong></span></a>，但是你真的完全了解它嗎？你電路上的共膜電感真的正確連接嗎？首先，讓我們了解共膜電感。共膜電感也稱為共模扼流圈，通常用于電腦開關電源中過濾系統共模的電磁干擾信號。<br /> <br /> 如果主控板引起的共模電流不經過衰減系數過濾裝置，那么共模干擾電流很容易根據插座手機充電線引起的電磁波輻射——共模電流引起的電流引起的共模輻射源。美國聯邦通信委員會、國際無線電干擾特別委員會CISPR22和中國GB9254等標準和規范限制了信息技術設備通信端口的共模傳導干擾和輻射發射。<br /> <br /> 在主控制面板的設計方案中，共膜電感起著EMI濾波器的作用，用于抑制高速電源線引起的無線電波向外輻射源的發射點。電腦板卡上的芯片不僅是工作過程中的電磁干擾對象，也是電磁干擾源。一般來說，我們可以將這些電磁干擾分為兩類:串模干擾和共模干擾。<br /> <br /> 為了消除信號在線輸入的干擾信號和感應的各種干擾，必須合理配置濾波器電路來過濾系統共模和串模的干擾。共模電感是濾波器電路的基本要素。<br /> <br /> 共膜電感本質上是一種雙向濾波器:一方面，除了信號線上的共模扼流圈外，另一方面，有必要抑制電磁干擾，防止干擾。同一電磁環境中的其他過濾設備的正常工作。將該濾波器電路的一端連接到干擾源，另一端連接到干擾設備時，La和C1、Lb和C2構成兩組低通過濾波器，可以將線路上的共模EMI信號控制在較低的電頻上。在交流頻率必要的情況下，電感量越大，對交流電流的阻斷能力越大，相反，電感量越小，阻斷能力也越小，在電源電路中抑制的是共模數據信號，共模電感的電感值可以用電量橋正確測量。<br /> <br /> 在設計共膜電感之前，必須首先檢查線圈是否符合以下原則。<br /> （1）在正常工作狀態下，磁芯不會因通電電流而飽和；<br /> （2）高頻干擾信號應具有足夠的阻抗和一定的頻寬，并且對工作頻率的信號電流應具有最小的阻抗；<br /> （3）電感的溫度系數越小，分布容量就越??；<br /> （4）DC電阻應盡可能??；<br /> （5）感應電感應盡可能大，感應值應穩定；</span></span></span><br /> <img alt="“過濾裝置”對于“共膜電感”有哪些重要性" src="/u_file/2107/photo/2107/2021073018025797.jpeg" /><br /> <br /> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">結尾：共膜電感通常用于過濾電腦開關電源中共膜電感的電磁干擾信號。所以你知道共膜電感的重要性嗎？<br /> <br /> 以上內容主要介紹過濾裝置對于共膜電感有哪些重要性，如需要電感器相關產品請留言聯系或<span style="color:#FF0000;">撥打：0755-28100016；</span>海量電感器庫存，規格齊全。歡迎來咨詢價格或拿樣測試。<br /> <br /> 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