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""; </script> <script src="/JS/Cls_jsPage.js"></script>  <div id="6aplaizydtj" class="content"> <div id="6aplaizydtj" class="plc2"> 當(dāng)前位置??a href="/">首頁(yè)</a> » <a href="/news/">資訊中心</a> » <a href="/News/News-0001,0002,0006.shtml"> 晨飛資訊</a> » <a href="/Article/yibanzaikaiguandiany_1.html">一般在開關(guān)電源變壓器的鐵芯中都會(huì)產(chǎn)生磁場(chǎng)</a></div> <div id="6aplaizydtj" class="list4nr"> <div id="6aplaizydtj" class="n_info_con" id="printableview"> <h3> 一般在開關(guān)電源變壓器的鐵芯中都會(huì)產(chǎn)生磁場(chǎng)</h3> <div id="6aplaizydtj" class="info_con_tit"> <div id="6aplaizydtj" class="info_con_tit"> <div id="6aplaizydtj" 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(wǎng)責(zé)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(shí)間??013-01-03 16:31:00</span> <div id="6aplaizydtj" class="newchang">  <div class="6aplaizydtj" 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(wǎng)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="6aplaizydtj" id="cntrBody"> <p><strong>開關(guān)電源變壓器</strong>一般都是工作于開關(guān)狀態(tài)；當(dāng)輸入電壓為直流脈沖電壓時(shí)，稱為單極性脈沖輸入，如單激式變壓器開關(guān)電源；當(dāng)輸入電壓為交流脈沖電壓時(shí)，稱為雙極性脈沖輸入，如雙激式變壓器開關(guān)電源；因此，變壓器也可以稱為脈沖變壓器，因?yàn)槠漭斎腚妷菏且恍蛄忻}沖；不過(guò)要真正較量起來(lái)的時(shí)候，變壓器與脈沖變壓器在工作原理上還是有區(qū)別的??/p> <p>在開關(guān)電源變壓器的鐵芯中就會(huì)產(chǎn)生磁場(chǎng)，變壓器的鐵芯就會(huì)被磁化，在磁場(chǎng)強(qiáng)度為H的磁場(chǎng)作用下又會(huì)產(chǎn)生磁通密度為B的磁力線通量，簡(jiǎn)稱磁通，??ldquo;Φ 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