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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>被動式PFC電源生產(chǎn)廠家,PFC電源</p><p><span>***更新：</span>2020-12-11 10:17:11</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="lph7sfc" 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(jī): </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="yskryas" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="h8zt7fc" class="box"><p><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，被動式PFC電源生產(chǎn)廠家。一般來說，被動式PFC電源生產(chǎn)廠家，被動式PFC電源生產(chǎn)廠家，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(dá)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。PFC分為主動式（有源）和被動式（無源）兩種。被動式PFC電源生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="被動式PFC電源生產(chǎn)廠家,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041733853787/2368324.png"></div><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(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。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(dá)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。北京主動PFC電源批發(fā)被動式PFC通常為一塊體積較大的電感。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="被動式PFC電源生產(chǎn)廠家,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041362838188/2093902.png"></div><p style="text-indent:25px">PC電源為什么需要配置PFC電路？目前電路負(fù)載基本上可以分為兩種模式，其一為電阻型負(fù)載，這種負(fù)載在采用交流輸入時，其電壓與電流的波形都將呈現(xiàn)正弦曲線且相位相同，換句話說電壓和電流都會在同一時刻逆轉(zhuǎn)極性，能量一直為正向移動；另外一種則是電抗型負(fù)載，這種負(fù)載在采用交流輸入時雖然電壓與電流的波形同樣為正弦曲線，但兩個波形之間存在相位差，這樣就無法保證電壓與電流在每一個時刻都是相同的極性，在極性相反的周期內(nèi)，能量是反向移動。由于電壓與電流波形之間存在相位差，因此會有反向能量即無效功率的產(chǎn)生。當(dāng)然這兩種都是理想狀態(tài)下的負(fù)載，在實際應(yīng)用中其實是電阻性負(fù)載與電抗型負(fù)載的混合，極少存在單一型負(fù)載的情況，因此在任意時刻的負(fù)載中會有兩種不同方向的能量，其中只有正向能量是有價值的，我們將其稱為有效功率，反向能量則稱為無效功率，而兩者的綜合就是視在功率了。</p><p style="text-indent:25px">為了體現(xiàn)電器設(shè)備對能量的利用率，我們就需要用到功率因數(shù)（Power Factor），即我們PC電源評測中常提到的PF值，這是一個有效功率除以視在功率所得出來的比值。而功率因數(shù)校正即PFC（Power Factor Correction）的用作就是提升PF值，它可以起到減少脈沖電流諧波分量、降低EMI電磁干擾、降低諧波失真度等作用，從是實現(xiàn)降低電網(wǎng)污染、使功率因數(shù)趨向于1的效果。目前PC電源中有分為被動式PFC和主動式PFC，前者常見于低端電源產(chǎn)品或者是一些比較老舊的產(chǎn)品中，一般來說可以將電源的功率因數(shù)控制在0.7到0.8的范圍，但一般不會超過0.8；后者則是目前主流和高級電源的標(biāo)配，它可以將電源的功率因數(shù)控制在0.9甚至更高的水平，部分高級產(chǎn)的功率因數(shù)甚至可以無限接近于1。主動式和被動式pfc是衡量電源檔次高低的一個重要因素。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="被動式PFC電源生產(chǎn)廠家,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038737730808/982750.png"></div><p style="text-indent:25px">該高頻“交流”電在經(jīng)過整流二極管整流并經(jīng)過濾波變成直流電壓（電源）向后級的PWM開關(guān)電源供電。該直流電壓在某些資料上把它稱為：B+PFC（TPW-4211即是如此），在斬波器輸出的B+PFC電壓一般高于原220交流整流濾波后的+300V，其原因是選用高電壓，其電感的線徑小、線路壓降小、濾波電容容量小，且濾波效果好，對后級PWM開關(guān)管要求低等諸多好處。目前PFC開關(guān)電源部分，起到開關(guān)作用的斬波管（K）有兩種工作方式：1、連續(xù)導(dǎo)通模式（CCM）：開關(guān)管的工作頻率一定，而導(dǎo)通的占空比（系數(shù)）隨被斬波電壓的幅度變化而變化。2、不連續(xù)導(dǎo)通模式（DCM）：斬波開關(guān)管的工作頻率隨被斬波電壓的大小變化（每一個開關(guān)周期內(nèi)“開”與“關(guān)”時間相等）。功率因素校正開關(guān)電源中的PFC開關(guān)電源部分和PWM開關(guān)電源部分的激勵部分均由一塊集成電路完成，一塊IC可以完成設(shè)計。PFC的全稱是Power Factor Corrector。北京主動PFC電源批發(fā)</p><p style="text-indent:25px">被動式PFC一般分“電感補(bǔ)償式”和“填谷電路式（Valley Fill Circuit）”。被動式PFC電源生產(chǎn)廠家</p><p style="text-indent:25px">目前銷售在國內(nèi)發(fā)展時，依舊有諸多不便，例如與相關(guān)部門、電網(wǎng)、物業(yè)等各方所有的申請、協(xié)調(diào)等工作都是潛在問題，并且目前銷售市場還存在一個重大問題即利用率較低。并且，為提升UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源的服務(wù)質(zhì)量、提高服務(wù)能力，相關(guān)部門大力支持運營商深化“互聯(lián)網(wǎng)+”設(shè)施應(yīng)用，鼓勵建成集設(shè)施監(jiān)控、服務(wù)、多元支付等為一體的設(shè)施運營服務(wù)平臺，推動互聯(lián)互通。隨著家庭，辦公室，汽車，酒店的UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源的數(shù)量的增加和普及，使用者無需再顧慮電池，并且使用者數(shù)量也將持續(xù)不斷地增長。反過來，這也延長了電池的使用壽命。此外，UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源也同時帶來其他好處。因此，出于效益、技術(shù)、資源、勞動力成本等諸多方面的考慮，世界不少發(fā)達(dá)地區(qū)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(bǔ)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(fù)載的研發(fā)、銷售及相關(guān)信息咨詢。正在向中國轉(zhuǎn)移，不斷以獨資或合資的形式參與競爭，外國公司在國內(nèi)不同形式的企業(yè)，辦事處和電氣設(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(bǔ)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(fù)載的研發(fā)、銷售及相關(guān)信息咨詢。的機(jī)構(gòu)也越來越多，使得國內(nèi)市場競爭更趨激烈。被動式PFC電源生產(chǎn)廠家</p><p 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