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tcPro"><section class="home-main container clearfix"><div id="ynfcjd8" class="twoCol"><div id="cb7qx7i" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/second-_txcp/">通信產(chǎn)品</a>?<a href="http://m.cdcfah.com/cp/third-txcp_qttxcp/">其他通信產(chǎn)品</a>?天津100KW充電模塊質(zhì)量商家深圳市天磁科技供應(yīng)</p><div id="mg2medm" class="leftbox clearfix"><h1>天津100KW充電模塊質(zhì)量商家深圳市天磁科技供應(yīng)</h1><div id="xroqn7f" class="proBig"><div id="apheq42" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/tianci/637267031107421875/7664885.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jnfhei3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/tianci/637267031107421875/7664885.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wvx7fwl" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>天津100KW充電模塊質(zhì)量商家</p><p><span>***更新：</span>2020-06-18 15:43:58</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nxproiu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市天磁科技有限公司</a></p><p><span>聯(lián)系人：</span>劉先生</p><p><span>郵箱: </span>sales@tiancipower.com</p><p><span>電話: </span>13798502745</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0755-23282813</p><p><span>地址: </span>福海街道新田社區(qū)大洋路90-7號303</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="wgnp2gd" class="page-proshow02"><p class="title">詳細說明</p><div id="3z2ubiz" class="box"><p><p> 電源模塊的作用： </p> <p> 電源模塊的主要作用是電壓轉(zhuǎn)換，可以將交流或直流電變換成你想要的交流或直流電。例如將市電220V交流電（AC）轉(zhuǎn)換成5V直流電（DC），因為交流220V的電是高壓電，天津100KW充電模塊質(zhì)量商家，而電子產(chǎn)品是低壓供電的，這就需要一個轉(zhuǎn)換裝置，將交流220V的電壓轉(zhuǎn)換成低壓。 </p> <p> 簡單理解就是類似電源適配器，你的電子產(chǎn)品要插電才能正常運行，但是你總不能直接接220V使用，天津100KW充電模塊質(zhì)量商家，天津100KW充電模塊質(zhì)量商家，因為這樣會導(dǎo)致產(chǎn)品燒毀，因此就需要一個專門的轉(zhuǎn)換裝置，不然使用過程中就會有各種問題。 </p> <div> <span style="color:#333333;font-family:"font-size:16px;text-align:justify;white-space:normal;background-color:#FFFFFF;"><br /> </span> </div><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津100KW充電模塊質(zhì)量商家" src="https://tyunfile.71360.com/UploadFile/tianci/637267031107421875/7664885.jpg"></div><p style="text-indent:25px">開關(guān)電源模塊：通信業(yè)的迅速發(fā)展極大的推動了通信電源的發(fā)展。高頻小型化的開關(guān)電源及其技術(shù)已成為現(xiàn)代通信供電系統(tǒng)的主流。在通信領(lǐng)域中,通常將整流器稱為一次電源,而將直流-直流(DC/DC)變換器稱為二次電源。一次電源的作用是將單相或三相交流電網(wǎng)變換成標稱值為48V的直流電源。當前在程控交換機用的一次電源中,傳統(tǒng)的相控式穩(wěn)壓電源己被高頻開關(guān)電源取代,高頻開關(guān)電源(也稱為開關(guān)型整流器SMR)通過MOSFET或IGBT的高頻工作,開關(guān)頻率一般控制在50-100kHz范圍內(nèi),實現(xiàn)高效率和小型化。近幾年,開關(guān)整流器的功率容量不斷擴大,單機容量己從48V/12.5A、48V/20A擴大到48V/200A、48V/400A。因通信設(shè)備中所用集成電路的種類繁多,其電源電壓也各不相同,在通信供電系統(tǒng)中采用高功率密度的高頻DC-DC隔離電源模塊,從中間母線電壓(一般為48V直流)變換成所需的各種直流電壓,這樣可**減小損耗、方便維護,且安裝、增加非常方便。一般都可直接裝在標準控制板上,對二次電源的要求是高功率密度。因通信容量的不斷增加,通信電源容量也將不斷增加。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津100KW充電模塊質(zhì)量商家" src="https://tyunfile.71360.com/UploadFile/tianci/637267031153183594/1738409.jpg"></div><p style="text-indent:25px">AC/DC變換是將交流變換為直流，其功率流向可以是雙向的，功率流由電源流向負載的稱為“整流”，功率流由負載返回電源的稱為“有源逆變”。AC/DC變換器輸入為50/60Hz的交流電，因必須經(jīng)整流、濾波，因此體積相對較大的濾波電容器是必不可少的，同時因遇到安全標準（如UL、CCEE等）及EMC指令的限制（如IEC、、FCC、CSA），交流輸入側(cè)必須加EMC濾波及使用符合安全標準的元件，這樣就限制AC/DC電源體積的小型化，另外，由于內(nèi)部的高頻、高壓、大電流開關(guān)動作，使得解決EMC電磁兼容問題難度加大，也就對內(nèi)部高密度安裝電路設(shè)計提出了很高的要求，由于同樣的原因，高電壓、大電流開關(guān)使得電源工作損耗增大，限制了AC/DC變換器模塊化的進程，因此必須采用電源系統(tǒng)優(yōu)化設(shè)計方法才能使其工作效率達到一定的滿意程度。AC/DC變換按電路的接線方式可分為，半波電路、全波電路。按電源相數(shù)可分為，單相、三相、多相。按電路工作象限又可分為一象限、二象限、三象限、四象限。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/303465.html</p></div></div></div></div></div><div id="8ix7rtf" class="page-right twoColRt"><div id="fkc3ta2" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="y2ln77x" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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