蘇州主動式PFC電源廠家聯系方式誠信服務深圳市保益新能電氣供應-b2b網站_b2b電子商務平臺【買產品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="被動式PFC：被動式PFC一般分“電感補償式”和“填谷電路式(ValleyFillCircuit)”“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，“電感補償式”包括靜音式和非靜音式。“電感補償式”的功率因數只能達到"><meta name="keywords" content="蘇州主動式PFC電源廠家聯系方式,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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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="wiuop8u" 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="pjlszqh" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>蘇州主動式PFC電源廠家聯系方式,PFC電源</p><p><span>***更新：</span>2020-11-22 06:13:47</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="srtamiu" 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="wfc8wd2" class="page-proshow02"><p class="title">詳細說明</p><div id="gkwd8dc" class="box"><p><p style="text-indent:25px">被動式PFC：被動式PFC一般分“電感補償式”和“填谷電路式(Valley Fill Circuit)”“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，“電感補償式”包括靜音式和非靜音式。“電感補償式”的功率因數只能達到0.7～0，蘇州主動式PFC電源廠家聯系方式，蘇州主動式PFC電源廠家聯系方式.8，它一般在高壓濾波電容附近?！疤罟入娐肥健睂儆谝环N新型無源功率因數校正電路，其特點是利用整流橋后面的填谷電路來大幅度增加整流管的導通角，通過填平谷點，使輸入電流從尖峰脈沖變?yōu)榻咏谡也ǖ牟ㄐ?，將功率因數提高?.9左右，蘇州主動式PFC電源廠家聯系方式，明顯降低總諧波失真。與傳統(tǒng)的電感式無源功率因數校正電路相比，其優(yōu)點是電路簡單，功率因數補償效果明顯，并且在輸入電路中不需要使用體積大重量沉的大電感器。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──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。主動式和被動式pfc是衡量電源檔次高低的一個重要因素。蘇州主動式PFC電源廠家聯系方式</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州主動式PFC電源廠家聯系方式,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038655679952/7203321.png"></div><p style="text-indent:25px">pfc對電源的重要性：功率因數（PF）是指，實際功率（有效功率）與視在功率（表觀功率）的比率（kW/kVA），而我們都知道，功率P等于電壓與電流的乘積（P=V×I）。另外，在電路中會存在著zui基本的兩種電路負載，一種為“電阻（由電源中各種電阻構成的電路負載）”，另外一種為“電抗（由電源中電感線圈和電容構成的電路負載）”。如果整個電路都是線性負載（電路阻抗為恒定常數的負載），那么電源電壓和電流都將會呈現為正弦曲線，并且相位相同。而如果在這個純電阻電路中，那么電壓和電流都會在同一時刻逆轉極性，那么也就是說，在每一時刻，電壓與電流的乘積都為“正”。也就是說，在電路中，沒有“反方向（負極方向）”的能量移動，而此時所產生負載功率才被稱為“實際功率”。武漢主動式電源pfc多少錢主動式PFC擁有更高的功率因數（高達99%）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州主動式PFC電源廠家聯系方式,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041410054963/9568029.png"></div><p style="text-indent:25px">開關電源中的pfc是什么意思？PFC的意思是功率因數校正。PFC意思是功率因數校正，功率因數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室驍悼梢院饬侩娏Ρ挥行Ю玫某潭?，當功率因數值越大，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，等于“視在功率乘以功率因素”，即：功率因素=實際功率/視在功率。功率因素：功率因數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。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”電要再次經過整流才能被后級PWM開關穩(wěn)壓電源使用。3、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。</p><p style="text-indent:25px">被動式PFC：被動式PFC一般分“電感補償式”和“填谷電路式（Valley Fill Circuit）”。“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，“電感補償式”包括靜音式和非靜音式?！半姼醒a償式”的功率因數只能達到0.7～0.8，它一般在高壓濾波電容附近。“填谷電路式”屬于一種新型無源功率因數校正電路，其特點是利用整流橋后面的填谷電路來大幅度增加整流管的導通角，通過填平谷點，使輸入電流從尖峰脈沖變?yōu)榻咏谡也ǖ牟ㄐ?，將功率因數提高?.9左右，明顯降低總諧波失真。與傳統(tǒng)的電感式無源功率因數校正電路相比，其優(yōu)點是電路簡單，功率因數補償效果明顯，并且在輸入電路中不需要使用體積大重量沉的大電感器。重量上主動式PFC比被動式PFC電路輕。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州主動式PFC電源廠家聯系方式,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038577291288/3249165.png"></div><p style="text-indent:25px">PFC就是功率因數校正，什么是PFC，意思是“功率因數校正”，通俗的話說，就是提高有用功的比重。而計算機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。目前的PFC有兩種，分為被動式PFC和主動式PFC。被動PFC特點：首先看下被動PFC和主動PFC在設計上有什么區(qū)別，被動式PFC一般是一個體積較大的電感，內部是銅線纏繞硅鋼片以絕緣膠紙包覆，外形和小變壓器非常相似。被動式PFC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，被動式PFC的功率因數只能達到0.6～0.75，一般放置在高壓濾波電容附近。被動PFC方案簡單的結構也形成了其zui大的特點——低成本。主動PFC特點：相對于被動PFC簡單直觀的外形，主動式PFC電路要復雜許多。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，可以將輸入電壓提高、減少電流的電能損耗。主動式PFC可以達到較高的功率因數──通?？蛇_98%以上，但由于電路較復雜、元件較多，所以成本也相對較高。目前電路負載基本上可以分為兩種模式，其一為電阻型負載，另外一種則是電抗型負載。武漢主動式電源pfc多少錢</p><p style="text-indent:25px">普通的開關穩(wěn)壓電源需要220V整流供電，而PFC穩(wěn)壓開關電源是由B+PFC供電。蘇州主動式PFC電源廠家聯系方式</p><p style="text-indent:25px">pfc對電源的重要性：在一個純電抗負載電路中，電壓和電流之間會產生一定的是時間差，也就會出現相位差（zui大理論值為90度，一般情況多為45度），那么電壓與電流的乘積，就不一定每一時刻都為“正”了。在一個半周期內，能量為“正”，另外一個半周期內能量為“負”，那么就是說，前半周期電源從電網中獲取能量，而在后半個周期內，這些能量又會回流到國家電網中。所以如果按照一個周期計算，那么電源獲得的能量會為“零”，沒有能量。上面的兩種描述都是純理論的理想狀態(tài)。但在實際應用中，電路中會有大量的電阻、電感和電容，在同一時刻都會有負載，也就會產生不同方向的“能量”。因此，所有的正向能量，我們稱其為“實際功率”，而反向回流電網的能量則稱之為“無用功率”，那么“實際功率”與“無用功率”的綜合，就是之前我們所說的“視在功率”。但正如我們之前所提到的，“功率因數”實際上就是“實際功率”與“視在功率”的比值。而zui為理想的比值為“1”，當然這還無法做到，因此只能無限接近于“1”，這個數值我們一般稱之為“功率因數”。蘇州主動式PFC電源廠家聯系方式</p><p style="text-indent:25px">深圳市保益新能電氣有限公司是一家電氣設備、電源產品、逆變器，UPS，通訊電源，儲能電源產品、工業(yè)電源、電池充放電電源設備、電池充放電管理系統(tǒng)設備、數字電源、無功補償器或者功率矯正器、數字控制技術軟件、工業(yè)控制軟件、電力計量產品、新能源設備、太陽能、并網逆變器、離網逆變器、匯流箱、控制器，通訊設備產品、節(jié)能電子產品、回饋式電源負載的研發(fā)、銷售及相關信息咨詢。的公司，是一家集研發(fā)、設計、生產和銷售為一體的專業(yè)化公司。保益新能深耕行業(yè)多年，始終以客戶的需求為向導，為客戶提供***的UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源。保益新能始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。保益新能創(chuàng)始人王永麗，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: 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