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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">解读贴片电感的主要参数 </h1> <p class="xg1"> 时间：2017-1-17 10:23<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(995)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=5265&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>电路是由电线和电子元器件组成的，不同的线路所需求的贴片电感的参数都不尽相同，贴片电感的主要参数有电感量、允许偏差、分布电容、额定电流及品质因数等。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> <b>解读贴片电感的主要参数</b>。<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电路</a>是由电线和<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>元器件组成的，不同的线路所需求的贴片电感的参数都不尽相同，贴片电感的主要参数有电感量、允许偏差、分布电容、额定电流及品质因数等。请学学下面的内容吧。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201701/17/102118ai59y27iswx0jd2o.jpg" target="_blank"><img src="data/attachment/portal/201701/17/102118ai59y27iswx0jd2o.jpg"></a></p></div><div><br></div><div> <font color="#f00000"><b> 1. 电感量</b></font></div><div><br></div><div> 电感量的大小，主要取决于电感线圈的圈数（匝数），绕制方式，有无磁心及磁心的<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>等决定。通常情况下，线圈圈数越多，绕制的线圈越密集，电感量就越大。有磁心的线圈比无磁心的线圈的电感量大。磁心导磁率越大，电感量也就越大。所以电感量是有很多因素来决定它的大小。电感量的基本单位是亨利（简称亨），用字母“H”表示。常用的单位还有毫亨（mH）和微亨（μH），它们之间的关系是：1H=1000mH；1mH=1000μH</div><div><br></div><div><b><font color="#f00000"> 2.允许偏差</font></b></div><div><br></div><div> 标注的感量与实际感量的允许误差值。一般用于振荡或滤波线路中的贴片电感要求精度较高，允许偏差为±0.2%——±0.5%；而用于耦合或高频阻流的精度要求不高，允许偏差为±10%——15%。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201701/17/102137is2rmx0mz0b02zml.jpg" target="_blank"><img src="data/attachment/portal/201701/17/102137is2rmx0mz0b02zml.jpg"></a></p></div><div><br></div><div> <b><font color="#f00000">3.分布电容</font></b></div><div><br></div><div> 线圈的匝与匝之间、线圈与磁心之间存在的电容。分布电容越小，其稳定性越好。</div><div><br></div><div><font color="#f00000"><b> 4.额定电流</b></font></div><div><br></div><div> 贴片电感正常工作时允许通过的最大电流值。若工作电流超过额定电流，则会烧毁。</div><div><br></div><div> <b><font color="#f00000"> 5.品质因数</font></b></div><div><br></div><div> 也称Q值或优值，是衡量电感器质量的主要参数。他是指贴片电感在某一频率的交流电压下工作时，所呈现的感抗与其等效损耗电阻之比。Q值越高，损耗越小，效率越高。</div><div><br></div><div> 以上就是为大家带来的解读贴片电感的主要参数，大家看完后是不是有很多收获呢？</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201701/17/102301yzxxmu93h410n04h.jpg" target="_blank"><img src="data/attachment/portal/201701/17/102301yzxxmu93h410n04h.jpg"></a></p><p style="text-align: center;"><br></p><p style="text-align: center;"><span style="line-height: 25.2px;">欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>网站(oecr.com)编辑团队为您精选行业动态，科技资讯，技术解析，光电<a href="http://www.oecr.com/portal.php?mod=list&catid=62" target="_blank" class="relatedlink">科普</a>等精彩内容，欢迎交换友情链接</span><span style="line-height: 25.2px;">(</span><b style="line-height: 25.2px;"><a href="http://bbs.oecr.com/thread-270693-1-1.html">查看详情</a></b><span 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