南京被動式電源pfc銷售來電咨詢深圳市保益新能電氣供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="有源PFC的基本原理是在開關電源的整流電路和濾波電容之間增加一個DC-DC的斬波電路(附加開關電源)，對于供電線路來說該整流電路輸出沒有直接接濾波電容，南京被動式電源pfc銷售，南京被動式電源pfc銷售，所以其對于供電線路來說呈現(xiàn)的是純阻性"><meta name="keywords" content="南京被動式電源pfc銷售,PFC電源"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" 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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="h33gkco" 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="gaxj3bd" 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)品關鍵詞：</span>南京被動式電源pfc銷售,PFC電源</p><p><span>***更新：</span>2020-12-11 11:17:46</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="jykc37w" 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="hwtvf7o" class="page-proshow02"><p class="title">詳細說明</p><div id="hbolxe3" class="box"><p><p style="text-indent:25px">有源PFC的基本原理是在開關電源的整流電路和濾波電容之間增加一個DC-DC的斬波電路(附加開關電源)，對于供電線路來說該整流電路輸出沒有直接接濾波電容，南京被動式電源pfc銷售，南京被動式電源pfc銷售，所以其對于供電線路來說呈現(xiàn)的是純阻性的負載，其電壓和電流波形同相，南京被動式電源pfc銷售、相位相同。斬波電路的工作也類似于一個開關電源。所以說有源PFC開關電源就是一個雙開關電源的開關電源電路，它是由斬波器(我們以后稱它為：“PFC開關電源”)和穩(wěn)壓開關電源(我們以后稱它為：“PWM開關電源”)組成的。主動式PFC輸出直流電壓的紋波很小，這種電源不必采用很大容量的濾波電容。南京被動式電源pfc銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京被動式電源pfc銷售,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041284644784/1270972.png"></div><p style="text-indent:25px">有源PFC的基本原理是在開關電源的整流電路和濾波電容之間增加一個DC-DC的斬波電路(附加開關電源)，對于供電線路來說該整流電路輸出沒有直接接濾波電容，所以其對于供電線路來說呈現(xiàn)的是純阻性的負載，其電壓和電流波形同相、相位相同。斬波電路的工作也類似于一個開關電源。所以說有源PFC開關電源就是一個雙開關電源的開關電源電路，它是由斬波器(我們以后稱它為：“PFC開關電源”)和穩(wěn)壓開關電源(我們以后稱它為：“PWM開關電源”)組成的。有源PFC電路的原理：有源PFC則是有很好的效果，基本上可以完全的消除電流波形的畸變，而且電壓和電流的相位可以控制保持一致，它可以基本上完全解決了功率因數(shù)、電磁兼容、電磁干擾的問題，但是電路非常的復雜，其基本思路是在220V整流橋堆后去掉濾波電容(以消除因電容的充電造成的電流波形畸變及相位的變化)，去掉濾波電容后由一個“斬波”電路把脈動的直流變成高頻(約100K)交流再經(jīng)過整流濾波后，其直流電壓再向常規(guī)的PWM開關穩(wěn)壓電源供電，其過程是; AC→DC→AC→DC。武漢PFC電腦電源生產(chǎn)廠家目前的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）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京被動式電源pfc銷售,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038577291288/3249165.png"></div><p style="text-indent:25px">主動式PFC與被動式PFC電源的不同：在早些年主動式PFC電源剛剛步入主流的時候，商家們一度大肆宣傳“主動式就是比被動式好”，現(xiàn)在主動式PFC電源已經(jīng)成為主流，雖然不再需要像當年那樣瘋狂地推廣，但是我們?nèi)匀豢梢栽诓簧匐娫串a(chǎn)品的包裝上看到強調(diào)主動式PFC的字眼，可見這個觀點早已深入人心。那么主動式PFC相比被動式PFC好在哪里呢？現(xiàn)在我們就來一起探討一下被動式PFC與主動式PFC之間差異，看看為什么主動式PFC電源能夠成為現(xiàn)在的主流?，F(xiàn)在主動式PFC已經(jīng)成為主流和高級電源的標配。</p><p style="text-indent:25px">無源PFC的兩種方式：一是、直接將反激電路前級的400V大電解拿掉，換上CBB，于是輸入到電路中的電壓波形就是正弦波了，然后將電源的變壓器調(diào)節(jié)感量，使其達到DCM和CCM工作模式的臨界點上，調(diào)的準的，能將PF值調(diào)到0.9.這樣做的缺點也是一下就能看出來了，因為輸入電壓降低，效率降下一截，且由于沒有前級濾波電路紋流變大，電路的穩(wěn)定性也較大降低。二是、填谷電路，增加三只二極管，400V電解換成兩只250V的，這個電路比前面那個電路好一些，因為輸入級的紋波沒那么大。但輸入電壓的谷值是原來電解直接濾波的一半，峰值不變。也一樣會降低電源的效率和穩(wěn)定性。“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="南京被動式電源pfc銷售,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041344381105/9656200.png"></div><p style="text-indent:25px">主動式PFC電源會更省電嗎？在主動式PFC電源剛剛步入主流的時候，不少廠商為了宣傳自家的主動式PFC電源產(chǎn)品，都紛紛打出了“主動式PFC電源更加省電”的旗幟，引導消費者選擇采用主動式PFC設計的產(chǎn)品。但事實上是不是這樣呢？主動式PFC電源就一定比被動式PFC電源省電嗎？如果從宏觀的角度來看，確實是這樣沒錯的。同樣是200W的有效功率，采用被動式PFC設計、PF值為0.8的PC電源需要消耗250W的視在功率，而采用主動式PFC設計、PF值為0.9的PC電源則只需要222W的視在功率，如果說視在功率相當于發(fā)電機的輸出功率，那主動式PFC電源對發(fā)電機造成的負荷就更低，自然也就是更省電了。然而這樣的省電對于消費者而言并沒有什么實際意義，因為我們的電表只統(tǒng)計有效功率，并不是統(tǒng)計視在功率，換句話說你只需要為有效功率付電費，因此不管是主動式PFC、被動式PFC還是沒有PFC，只要有效功率相同，電表上走的數(shù)字就是相同的，消費者需要支付的電費也是相同的。真正能讓你省電費的參數(shù)是電源的轉換效率，這個轉換效率直接影響電源有效功率的高低，在相同的輸出負載下，轉換效率更高的電源所需要的有效功率越低，你需要付的電費自然也越少了。主動式PFC電路是由電感線圈、濾波電容、開關管及控制IC等元件組成的一個升壓電路。武漢PFC電腦電源生產(chǎn)廠家</p><p style="text-indent:25px">有源PFC則是有很好的效果，基本上可以完全的消除電流波形的畸變。南京被動式電源pfc銷售</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。計算機電源負責把dao交流電（AC）轉成直流電（DC）為主機提供全部電力，因此其能源轉換效率高低是一項非常重要的節(jié)能省電指標。電源的能源轉換效率跟標稱功率大小并無必然關系，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。南京被動式電源pfc銷售</p><p style="text-indent:25px">深圳市保益新能電氣有限公司主要經(jīng)營范圍是電工電氣，擁有一支專業(yè)技術團隊和良好的市場口碑。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。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)知識，遵守行業(yè)規(guī)范，植根于電工電氣行業(yè)的發(fā)展。保益新能秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”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/2361346.html</p></div></div></div></div></div><div id="ycz3nja" class="page-right twoColRt"><div id="8ry2wia" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="bvxzb2q" 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" class="vcenter" 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