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alt="貼片電阻，合金電阻，保險絲產品新聞中心" src="/u_file/2206/photo/2206/2022062314432921.jpeg" width="100%"></a></div>  <div id="nav"> <div class="wrap"> <div id="side"> <a href="/info/category-4/" class="trans on"> 公司新聞 </a> <a href="/info/category-5/" class="trans "> 行業新聞 </a> <a href="/info/category-6/" class="trans "> 產品新聞 </a> <a href="/faq/" class="trans "> 知識解答 </a> </div> </div> </div>  <div id="info-detail"> <div class="wrap"> <div class="top"> <h1 class="title"> 0R電阻在線路中的作用 </h1> <div class="meg"> <div class="firsts">發布時間：2019-09-28</div> <div class="">已被瀏覽：<span>7779</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="line-height:200%;"><span style="font-size:16px;"><span style="font-family:微軟雅黑,arial;"><span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">0R電阻在電路中的作用：<br /> <br /> 1.在電路中強制性做上拉或下拉，做上拉時下拉電阻一般不上件，做下拉時上拉電阻一般不上件.</span></span>(<strong><a href="http://www.forsakring-online.com"><span style="color:#FF0000;">0R電阻</span></a></strong>)<br /> <a href="http://www.forsakring-online.com"><img src="/u_file/1909/photo/1909/2019092813405539.png" title="0R電阻" /></a> <br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">2.電壓轉換隔離作用，可以做跳線用，如果某段線路不用，直接貼該電阻即可（不影響外觀）。</span></span><br /> <img src="/u_file/1909/photo/1909/2019092813410469.png" /> <br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">3.在匹配電路參數不確定的時候，以0歐姆代替，實際調試的時候，確定參數，再以具體數值的元件代替，如下圖當主板中不使用U2803時直接采用0ohm電阻進行短接即可.</span></span><br /> <img src="/u_file/1909/photo/1909/2019092813411253.png" /> <br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">4.想測某部分電路的耗電流的時候，可以去掉0ohm電阻，接上電流表，這樣方便測耗電流。</span></span><br /> <img src="/u_file/1909/photo/1909/2019092813412297.png" /> <br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">5.在高頻信號下，充當電感或電容。（與外部電路特性有關）電感用，主要是解決EMC問題。如地與地，電源和IC Pin間。</span></span><br /> <img src="/u_file/1909/photo/1909/2019092813413375.png" /> <br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">6.連接不同的地線（精度要高，比如1% ），隔離數字地和模擬地，減少數字地對模擬地的干擾（磁珠也能實現）</span></span><br /> <img src="/u_file/1909/photo/1909/2019092813414034.png" /> <br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">7.熔絲作用，很多電路輸出端均會采用0ohm作保護.</span></span><br /> <img src="/u_file/1909/photo/1909/2019092813414920.png" /> <br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">8.跨接時用于電流回路。當分割電地平面后，造成信號最短回流路徑斷裂，此時，信號回路不得不繞道，形成很大的環路面積，電場和磁場的影響就變強了，容易干擾/被干擾。在分割區上跨接0歐電阻，可以提供較短的回流路徑，減小干擾。</span></span><br /> <img src="/u_file/1909/photo/1909/2019092813423132.png" /><br /> <span style="letter-spacing:0.0000pt;font-weight:bold;text-transform:none;font-style:normal;background:rgb(255,255,255);"><span style="color:#222222;">9.配置電路，一般產品上不要出現跳線和撥碼開關。有時用戶會亂動設置，易引起誤會，為了減少維護費用，應用0歐電阻代替跳線等焊在板子上.</span></span><br /> <br /> <img src="/u_file/1909/photo/1909/2019092813425822.png" /><br /> <br /> 深圳市順?？萍加邢薰臼且患覍I代理銷售電子元器件的服務商，主要產品有電容，電阻，電感，保險絲，二三極管，連接器等幾大類產品，擁有完善的供應鏈體系，海量現貨庫存，原廠技術支持等，經過多年的發展壯大，逐漸領跑行業，歡迎咨詢下單。</span></span></span><br /> </div> <div id="page" class="wow fadeInUp wrap"> <div class="prev fl">上一篇 : <a href="/info/news-i00232i1.html" title="1206 47UF 10V貼片電容">1206 47UF 10V貼片電容</a></div> <div class="next fr">下一篇 : <a href="/info/news-i00229i1.html" title="華德電子發展史">華德電子發展史</a></div> <div class="clear"></div> </div> <div class="returns"> <a 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