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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/first-_nengyuan/">能源</a>?<a 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>?深圳PFC電腦電源廠家聯(lián)系方式服務(wù)至上深圳市保益新能電氣供應(yīng)</p><div id="mumebs3" class="leftbox clearfix"><h1>深圳PFC電腦電源廠家聯(lián)系方式服務(wù)至上深圳市保益新能電氣供應(yīng)</h1><div id="2mgxzbt" class="proBig"><div id="sq77qsz" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041284644784/1270972.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8w3mvs8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041284644784/1270972.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vn3ax8m" 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>深圳PFC電腦電源廠家聯(lián)系方式,PFC電源</p><p><span>***更新：</span>2020-11-12 09:21:29</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="vj8wynu" 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="2p4vsz7" class="page-proshow02"><p class="title">詳細說明</p><div id="i7hjbik" class="box"><p><p style="text-indent:25px">PFC電路原理?PFC就是“功率因數(shù)”的意思，主要用來表征電子產(chǎn)品對電能的利用效率。功率因數(shù)越高，說明電能的利用效率越高。?PFC有兩種，一種是無源PFC（也稱被動式PFC），深圳PFC電腦電源廠家聯(lián)系方式，一種是有源PFC（也稱主動式PFC）。無源PFC一般采用電感補償方法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)，但無源PFC的功率因數(shù)不是很高，深圳PFC電腦電源廠家聯(lián)系方式，深圳PFC電腦電源廠家聯(lián)系方式，只能達到0.7~0.8；有源PFC由電感電容及電子元器件組成，體積小，可以達到很高的功率因數(shù)，但成本要高出無源PFC一些。?有源PFC電路中往往采用高集成度的IC，采用有源PFC電路的PC電源，至少具有以下特點：?（1）?輸入電壓可以從90V到270V；（?2）?高于0.99的線路功率因數(shù)，并具有低損耗和高可靠等優(yōu)點；?（3）?IC的PFC還可用作輔助電源，因此在使用有源PFC電路中，往往不需要待機變壓器；?（4）?輸出不隨輸入電壓波動變化，因此可獲得高度穩(wěn)定的輸出電壓；?5）?有源PFC輸出DC電壓紋波很小，且呈100Hz/120Hz（工頻2倍）的正弦波，因此采用有源PFC的電源不需要采用很大容量的濾波電容。計算機開關(guān)電源是一種電容輸入型電路。深圳PFC電腦電源廠家聯(lián)系方式</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳PFC電腦電源廠家聯(lián)系方式,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041284644784/1270972.png"></div><p style="text-indent:25px">主動式PFC的特點及總結(jié)：接下來我們就是看看采用主動式PFC設(shè)計電源的功率因數(shù)變化了。這次我們選擇了游戲悍將紅紫銀效R500M電源和游戲引擎UT-450AP電源的功率因數(shù)變化來看一下。這兩款電源都采用了主動式PFC設(shè)計，他們的功率因數(shù)zui高都超過了99%，這說明了他們在節(jié)能方面還是非常出色的。通過我們對主動式PFC設(shè)計的分析介紹，可以得出以下幾點：1、主動式PFC設(shè)計復(fù)雜，成本較高。2、主動式PFC比被動式PFC性能要好，更加節(jié)能。3、主動式PFC的功率因數(shù)zui高能超過99%。4、主動式PFC能適應(yīng)更高的電壓范圍。深圳PFC電腦電源廠家聯(lián)系方式被動式PFC由多塊硅鋼片外部纏繞銅線而成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳PFC電腦電源廠家聯(lián)系方式,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038655679952/7203321.png"></div><p style="text-indent:25px">PFC是電腦電源中的一bai個非常重要的參數(shù)du,全稱是電腦功率因素,簡稱為PFC,等于“視在功zhi率乘以功率因dao素”,即:功率因素=實際功率/視在功率。?? ?功率因素:功率因數(shù)表征著電腦電源輸出有功功率的能力。?? ?功率是能量的傳輸率的度量,在直流電路中它是電壓V和電流A和乘積。在交流系統(tǒng)里則要復(fù)雜些:即有部分交流電流在負載里循環(huán)不傳輸電能,它稱為電抗電流或諧波電流,它使視在功率( 電壓Volt乘電流Amps)大于實際功率。視在功率和實際功率的不等引出了功率因素,功率因素等于實際功率與視在功率的比值。</p><p style="text-indent:25px">PFC的英文全稱為“Power Factor Correction”，意思是“功率因數(shù)校正”，功率因數(shù)指的是有效功率與總耗電量（視在功率）之間的關(guān)系，也就是有效功率除以總耗電量（視在功率）的比值。基本上功率因數(shù)可以衡量電力被有效利用的程度，當功率因數(shù)值越大，表示其電力利用率越高。功率因數(shù)是用來衡量用電設(shè)備用電效率的參數(shù)，低功率因數(shù)表示低電力效能。為了提高用電設(shè)備功率因數(shù)的技術(shù)就稱為功率因數(shù)校正。　計算機開關(guān)電源是一種電容輸入型電路，其電流和電壓之間的相位差會造成交換功率的損失，此時便需要PFC電路提高功率因數(shù)。目前的PFC有兩種，一種為被動式PFC（也稱無源PFC）和主動式PFC（也稱有源式PFC）。“電感補償式”包括靜音式和非靜音式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳PFC電腦電源廠家聯(lián)系方式,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038737730808/982750.png"></div><p style="text-indent:25px">目前電腦用的電源PFC有兩種，一是被動式PFC，也稱無源PFC；一是主動式PFC，也稱有源式PFC。1、主動式PFC主要由高頻電感、開關(guān)管、電容以及控制IC等元件構(gòu)成，可簡單的歸納為升壓型開關(guān)電源電路，這種電路的特點是構(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。2、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，它的原理是采用電感補償方法通過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)，被動式PFC的功率因數(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，比較適合中低端電源。3、主動式PFC設(shè)計復(fù)雜，成本較高；主動式PFC比被動式PFC性能要好，更加節(jié)能；主動式PFC的功率因數(shù)更高；被動式PFC電源成本低。正因如此，主動式PFC已成為當前電腦主流電源。如果你只是想用低端的電腦穩(wěn)定使用的話，那買個被動式PFC的電源使用沒問題。主動式PFC就是一個有源的升壓電路。深圳主動式電源pfc廠家</p><p style="text-indent:25px">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。深圳PFC電腦電源廠家聯(lián)系方式</p><p style="text-indent:25px">電源沒有pfc會有什么后果：PFC是用來提高功率因數(shù)的，在電網(wǎng)中存在有功功率和無功功率，功率因數(shù)提高后，無功功率就減少了。在我國，使用的是有功電度表，它是無法測量無功功率的，所以即使電源沒有PFC，也不會多扣電費。但是在國外比如歐洲，它們的電度表也會計算無功功率的，沒有PFC就意味著要花更多的電費。所以zui好買帶PFC的電源，主動PFC電源的功率因數(shù)可以做的比較高，建議購買主動PFC的電源。關(guān)于電壓，這個跟PFC關(guān)系不是太大，但需要注意的是，某些國家比如美國日本，它們使用的是110V交流電，那你購買電源就要購買支持100-240V全電壓的產(chǎn)品，以免到國外不能使用。電源的輸入電壓可以從電源銘牌看到，正規(guī)的支持全電壓的電源的銘牌會標注100-240V電壓字樣，很好辨識。但是PFC就不容易從外觀看了，除非你拆開電源，簡單的辦法就是到官方網(wǎng)站查詢產(chǎn)品資料。深圳PFC電腦電源廠家聯(lián)系方式</p><p style="text-indent:25px">深圳市保益新能電氣有限公司致力于電工電氣，是一家生產(chǎn)型公司。保益新能致力于為客戶提供良好的UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事電工電氣多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。保益新能秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1959506.html</p></div></div></div></div></div><div id="e7da2qs" class="page-right twoColRt"><div id="pod7e7z" class="box01 margin10 clearfix"><h3><a 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