PFC電腦電源銷售廠家歡迎來電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="開關電源中的pfc是什么意思？PFC的意思是功率因數(shù)校正。PFC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之間的關系，也就是有效功率除以總耗電量的比值?；旧瞎β室驍?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"><meta name="keywords" content="PFC電腦電源銷售廠家,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 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clearfix"><h1>PFC電腦電源銷售廠家歡迎來電深圳市保益新能電氣供應</h1><div id="xvhykbs" class="proBig"><div id="wlhtvcy" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041293638980/8296733.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7gs37ry" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041293638980/8296733.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="n3uqxov" 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>PFC電腦電源銷售廠家,PFC電源</p><p><span>***更新：</span>2020-12-05 05:15:09</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="887h277" 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="7fbsozg" class="page-proshow02"><p class="title">詳細說明</p><div id="ocel8sz" class="box"><p><p style="text-indent:25px">開關電源中的pfc是什么意思？PFC的意思是功率因數(shù)校正。PFC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之間的關系，也就是有效功率除以總耗電量的比值。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。PFC是電腦電源中的一個非常重要的參數(shù)，等于“視在功率乘以功率因素”，PFC電腦電源銷售廠家，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。原理：1、電流波形是斷續(xù)的，其包絡線和電壓波形相同，并且包絡線和電壓波形相位同相，PFC電腦電源銷售廠家。2、由于斬波的作用，半波脈動的直流電變成高頻（由斬波頻率決定，約100KHz）“交流”電，該高頻“交流”電要再次經(jīng)過整流才能被后級PWM開關穩(wěn)壓電源使用。3，PFC電腦電源銷售廠家、從外供電總的看該用電系統(tǒng)做到了交流電壓和交流電流同相并且電壓波形和電流波形均符合正弦波形，既解決了功率因素補償問題，也解決電磁兼容(EMC)和電磁干擾(EMI)問題。重量上主動式PFC比被動式PFC電路輕。PFC電腦電源銷售廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="PFC電腦電源銷售廠家,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041293638980/8296733.png"></div><p style="text-indent:25px">主動式PFC：而主動式PFC則由電感電容及電子元器件組成，體積小、通過**IC去調整電流的波形，對電流電壓間的相位差進行補償。主動式PFC可以達到較高的功率因數(shù)──通?？蛇_98%以上，但成本也相對較高。此外，主動式PFC還可用作輔助電源，因此在使用主動式PFC電路中，往往不需要待機變壓器，而且主動式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。　PFC相關專業(yè)術語：1.corrector， power factor （PFC）功率因數(shù)修正器。2.power-factor corrector （PFC）功率因數(shù)修正器。3.power factor control （PFC）功率因數(shù)控制。PFC電腦電源銷售廠家主動式PFC還可用作輔助電源，因此在使用主動式PFC電路中，往往不需要待機變壓器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="PFC電腦電源銷售廠家,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038577291288/3249165.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的全稱是Power Factor Corrector，意思是功率因數(shù)校正器，它可以在交流轉換為直流時提高電源對市電的利用率，但不能減小轉換過程的電能損耗，也沒有節(jié)約電能的功能。主動式PFC電源：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及以上的中高類型的電源。就性能而言，主動式PFC擁有更高的功率因數(shù)（高達99%），配合好的電路設計，能適應更高的電壓范圍。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。主動PFC在低功率時，自身損耗大于被動PFC。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="PFC電腦電源銷售廠家,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038635709246/2295771.png"></div><p style="text-indent:25px">如何快速維修pfc電路：6、保護電路，在液晶采電開關電源中，除具有常見的尖峰吸收保護電路外，還設在+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，先確認有無炸件、電容鼓包現(xiàn)象，如有應先更換并把相關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。基本上功率因數(shù)可以衡量電力被有效利用的程度。PFC電腦電源銷售廠家</p><p style="text-indent:25px">PFC分為主動式（有源）和被動式（無源）兩種。PFC電腦電源銷售廠家</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。為了提高用電設備功率因數(shù)的技術就稱為功率因數(shù)校正?！∮嬎銠C開關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）。PFC電腦電源銷售廠家</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。公司業(yè)務涵蓋UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源等，價格合理，品質有保證。公司注重以質量為中心，以服務為理念，秉持誠信為本的理念，打造電工電氣良好品牌。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/2272753.html</p></div></div></div></div></div><div id="q74283g" class="page-right twoColRt"><div id="y7fgne3" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x8yfhoa" class="recomPic likePro"><a 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