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href="http://m.cdcfah.com/cp/second-nengyuan_pdsdsb/">配電輸電設(shè)備</a>?<a href="http://m.cdcfah.com/cp/third-pdsdsb_qtpdsdsb/">其他配電輸電設(shè)備</a>?主動式電源pfc批發(fā)哪家好歡迎來電深圳市保益新能電氣供應(yīng)</p><div id="ru2a3q8" class="leftbox clearfix"><h1>主動式電源pfc批發(fā)哪家好歡迎來電深圳市保益新能電氣供應(yīng)</h1><div id="p3ihe8j" class="proBig"><div id="j7jliax" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038655679952/7203321.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="a8pwoa8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038655679952/7203321.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="iwtaxub" 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>主動式電源pfc批發(fā)哪家好,PFC電源</p><p><span>***更新：</span>2020-11-13 05:18:02</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nbyqsjg" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市保益新能電氣有限公司</a></p><p><span>聯(lián)系人：</span>葉立民</p><p><span>郵箱: </span>1301978383@qq.com</p><p><span>電話: </span>18675588113</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.boynelectric.com</p><p><span>手機: </span>0755-21070344</p><p><span>地址: </span>大浪街道浪口社區(qū)華榮路496號德泰工業(yè)區(qū)1號廠房4層402</p><p>[當(dāng)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="p32po2y" class="page-proshow02"><p class="title">詳細說明</p><div id="3mqn73n" class="box"><p><p style="text-indent:25px">主動PFC電路由高頻電感、開關(guān)管、電容以及控制IC等元件構(gòu)成。電路的特點是構(gòu)造復(fù)雜，但優(yōu)點很多：功率因數(shù)高達0.99、低損耗和高可靠、輸入電壓可以從90V到270V（寬幅輸入）等，由于輸出DC電壓紋波很小，因此采用主動式PFC的電源不需要采用很大容量的濾波電容。被動式PFC通常為一塊體積較大的電感，其內(nèi)部由多塊硅鋼片外部纏繞銅線而組成。功率因數(shù)不是很高，只能達到0.7~0.8，因此其效率也比較低，發(fā)熱量也比較大。被動式PFC也并非一無是處，其結(jié)構(gòu)簡單，穩(wěn)定性上表現(xiàn)好，主動式電源pfc批發(fā)哪家好，比較適合中低端電源。希望你根本個人的實際情況選擇，主動式電源pfc批發(fā)哪家好，主動式電源pfc批發(fā)哪家好！電感補償式”的功率因數(shù)只能達到0.7～0.8，它一般在高壓濾波電容附近。主動式電源pfc批發(fā)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="主動式電源pfc批發(fā)哪家好,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038655679952/7203321.png"></div><p style="text-indent:25px">電源里主動PFC和被動PFC有什么區(qū)別：有源和無源的區(qū)別。PFC的全稱是Power Factor Corrector，意思是功率因數(shù)校正器，它可以在交流轉(zhuǎn)換為直流時提高電源對市電的利用率，但不能減小轉(zhuǎn)換過程的電能損耗，也沒有節(jié)約電能的功能。此外，PFC還能減少電源對市電電網(wǎng)的干擾，尤其是避免它在突然啟動時對其他電器的影響。PFC分為主動式（有源）和被動式（無源）兩種，它們是衡量電源檔次高低的一個重要因素。一般來說，功率在250W～300W的電源多采用被動式PFC，而主動式PFC則常用于400W及以上的中高級電源。就性能而言，主動式PFC擁有更高的功率因數(shù)（高達99%），配合好的電路設(shè)計，能適應(yīng)更高的電壓范圍。你可以通過電源散熱孔查看該產(chǎn)品采用了何種PFC電路：被動式PFC通常為一塊體積較大的電感，由多塊硅鋼片外部纏繞銅線而成；而主動式PFC則由電感線圈配合IC控制芯片組成。廣州PFC電腦電源批發(fā)價格“電感補償式”是使交流輸入的基波電流與電壓之間相位差減小來提高功率因數(shù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="主動式電源pfc批發(fā)哪家好,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041733853787/2368324.png"></div><p style="text-indent:25px">如何快速維修pfc電路：1、什么是PFC電路呢？ PFC電路說白了就是把橋堆整流后的+300V電壓升高到+375V---400V。這也是液晶電視的電源與CRT電視的電源不同之處的一點，不同之處的第二點就是次級電壓比CRT的低，其它的地方與普通的開關(guān)電源原理相同，都一樣。測得大濾波電容330U/450V兩端電壓為+375V---400V，則表明功率因數(shù)校正電路工作正常; 如果測得電容兩端電壓為+300V，說明PFC電路未工作，主查PFC振蕩集成電路。2、檢修液晶電源時; 首PFC振蕩集成電路。先確認(rèn)保險管狀態(tài)，保險管完好，通常PFC校正電路中的開關(guān)管等沒有失效。再測量大電解電容對地是否存在短路，有幾十千歐以上充電電阻，表明電源沒有擊穿。3、如果保險管損壞，一個要檢查PFC校正電路開關(guān)管，第二個要檢查副電5 N“、40英寸以下的一般輸出+5V、+12V、+24V三組電壓; 40英寸以上的一般輸出源IC。+5V、+12V、+18V、+24 V四組電壓。其中+5 V為待機電壓，+12V供數(shù)字板，+18V供伴音，+24 V供背光板。在實踐維修中，只要各組電壓一樣、功率一樣的電源板都可以代換。</p><p style="text-indent:25px">PFC是電腦電源中的一個非常重要的參數(shù)，全稱是電腦功率因素校正，簡稱為PFC。計算機電源負責(zé)把dao交流電（AC）轉(zhuǎn)成直流電（DC）為主機提供全部電力，因此其能源轉(zhuǎn)換效率高低是一項非常重要的節(jié)能省電指標(biāo)。電源的能源轉(zhuǎn)換效率跟標(biāo)稱功率大小并無必然關(guān)系，它是電源在處理AC至DC變壓過程中，能量的剩余比例，而此效率基本取決于電源內(nèi)部的功率因素校正電路（PFC，Power Factor Correction）。PFC主要有兩種，一種叫主動式PFC，另一種叫被動式PFC。主動式PFC提升功率因素值至95%以上，被動式PFC約只能改善至75%。換句話說，主動式PFC比被動式PFC能節(jié)約更多的能源。采用主動式PFC的電源供應(yīng)器的重量，較用笨重組件的被動式PFC產(chǎn)品要輕巧許多，而產(chǎn)品走向輕薄小是未來3C市場必然趨勢。與被動式PFC相比，主動式PFC電路省去了一個較大體積的含有硅鋼片的電感。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="主動式電源pfc批發(fā)哪家好,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038577291288/3249165.png"></div><p style="text-indent:25px">如何快速維修pfc電路：4、電源板可以從電視上摘下**維修，維修時只需要把開關(guān)機控制電路三極管C、E短接（或?qū)⒁恢?.5K左右的電阻與副電源的+5V輸出端相連》，整機就處于開機狀態(tài)，各路電壓均有輸出。在部分液晶采電的開關(guān)電源中，只有+ 12V或+24V輸出端帶有一定功率的負載，主開關(guān)電源才進行正常的工作狀態(tài)。所以在+24V輸出端上你可以接一只電動自行車的36 V燈泡作假負載（或在+ 12V輸出端接一只摩托車燈泡作假負載）即可。5、液晶電源通電后，副電源先工作，輸出+5V電壓給數(shù)字板上的CPU，此時整機處于待機狀態(tài)。當(dāng)按”待機“鍵后，CPU輸出開機電平，PFC 電路先工作，將+300V脈動直流電壓轉(zhuǎn)換成正常的直流電壓（+380V）后，這時主開關(guān)電源的脈寬振蕩器才開始工作; 接著主開關(guān)變壓器次級輸出+ 12V、+24V電壓，整機進入正常工作狀態(tài)。主動式PFC一般由功率MOFET開關(guān)管、PFC二極管、電感、等六個電子元器件組成。廣州PFC電腦電源批發(fā)價格</p><p style="text-indent:25px">主動PFC為了搞定電磁干擾，EMI濾波電路要加強，電路更加復(fù)雜。主動式電源pfc批發(fā)哪家好</p><p style="text-indent:25px">如何快速維修pfc電路：6、保護電路，在液晶采電開關(guān)電源中，除具有常見的尖峰吸收保護電路外，還設(shè)在+24V、+ 12V和+5V電壓的過壓、過載保護電路，其保護電路多采用四運算放大器LM324、四電壓比較器LM339、雙電壓比較器LM393或雙運算放大器LM358。過流過壓保護電路，在維修時可脫開不用，如果電壓恢復(fù)正常，說明保護電路引起，這時要分步斷開是哪路起作用。然后再進行維修。7、開機前，先確認(rèn)有無炸件、電容鼓包現(xiàn)象，如有應(yīng)先更換并把相關(guān)的器件全部都測量一遍。建議更換所有損壞器件后試機時，zui好把原機保險絲除掉; 接上一個220V/100W的燈泡，這樣可以有效防止再次炸件。主動式電源pfc批發(fā)哪家好</p><p style="text-indent:25px">深圳市保益新能電氣有限公司辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，為員工打造良好的辦公環(huán)境。保益是深圳市保益新能電氣有限公司的主營品牌，是專業(yè)的電氣設(shè)備、電源產(chǎn)品、逆變器，UPS，通訊電源，儲能電源產(chǎn)品、工業(yè)電源、電池充放電電源設(shè)備、電池充放電管理系統(tǒng)設(shè)備、數(shù)字電源、無功補償器或者功率矯正器、數(shù)字控制技術(shù)軟件、工業(yè)控制軟件、電力計量產(chǎn)品、新能源設(shè)備、太陽能、并網(wǎng)逆變器、離網(wǎng)逆變器、匯流箱、控制器，通訊設(shè)備產(chǎn)品、節(jié)能電子產(chǎn)品、回饋式電源負載的研發(fā)、銷售及相關(guān)信息咨詢。公司，擁有自己**的技術(shù)體系。公司以用心服務(wù)為重點價值，希望通過我們的專業(yè)水平和不懈努力，將電氣設(shè)備、電源產(chǎn)品、逆變器，UPS，通訊電源，儲能電源產(chǎn)品、工業(yè)電源、電池充放電電源設(shè)備、電池充放電管理系統(tǒng)設(shè)備、數(shù)字電源、無功補償器或者功率矯正器、數(shù)字控制技術(shù)軟件、工業(yè)控制軟件、電力計量產(chǎn)品、新能源設(shè)備、太陽能、并網(wǎng)逆變器、離網(wǎng)逆變器、匯流箱、控制器，通訊設(shè)備產(chǎn)品、節(jié)能電子產(chǎn)品、回饋式電源負載的研發(fā)、銷售及相關(guān)信息咨詢。等業(yè)務(wù)進行到底。自公司成立以來，一直秉承“以質(zhì)量求生存，以信譽求發(fā)展”的經(jīng)營理念，始終堅持以客戶的需求和滿意為重點，為客戶提供良好的UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源，從而使公司不斷發(fā)展壯大。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1969251.html</p></div></div></div></div></div><div id="dmobtk7" class="page-right 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