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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="gpwolxe" class="twoCol"><div id="tc7lfgs" class="page-proshow clearfix"><p class="current"> 當(dāng)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>?天津PFC電源價(jià)格歡迎來電深圳市保益新能電氣供應(yīng)</p><div id="jyqn32t" class="leftbox clearfix"><h1>天津PFC電源價(jià)格歡迎來電深圳市保益新能電氣供應(yīng)</h1><div id="q3cj2xz" class="proBig"><div id="ahtqp2j" 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="ihjqszb" 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="vumj7rt" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>天津PFC電源價(jià)格,PFC電源</p><p><span>***更新：</span>2020-12-10 08:13:57</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="3awyqcz" 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="k3jbifr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="878nubn" class="box"><p><p style="text-indent:25px">主動(dòng)式PFC的優(yōu)點(diǎn)：1、校正效果遠(yuǎn)優(yōu)于歐洲的 EN 諧波規(guī)范，即便未來規(guī)格更趨嚴(yán)格也都能符合規(guī)定。隨著IC零件需求增加，成本將隨之降低。2、較無原料短缺的風(fēng)險(xiǎn)。3，天津PFC電源價(jià)格、較被動(dòng)式專業(yè)的解決方案。4、能以較低成本帶來全域電壓的高附加價(jià)值。5、功率因素接近完美的99%，使電力利用率較佳化，對環(huán)保有益。6、因應(yīng)未來CPU發(fā)展趨勢，輸出瓦特?cái)?shù)(電力)要求將越高，主動(dòng)式PFC因成本不隨輸出瓦特?cái)?shù)增加而上升，故擁有較好競爭力，天津PFC電源價(jià)格，天津PFC電源價(jià)格。動(dòng)式PFC優(yōu)于被動(dòng)式PFC，因此，選擇節(jié)能型的電源必須選擇采用主動(dòng)式PFC電路設(shè)計(jì)的電源?！疤罟入娐肥健钡奶攸c(diǎn)是利用整流橋后面的填谷電路來大幅度增加整流管的導(dǎo)通角。天津PFC電源價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津PFC電源價(jià)格,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041284644784/1270972.png"></div><p style="text-indent:25px">開關(guān)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(guān)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(dāng)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(gè)非常重要的參數(shù)，等于“視在功率乘以功率因素”，即：功率因素=實(shí)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(luò)線和電壓波形相同，并且包絡(luò)線和電壓波形相位同相。2、由于斬波的作用，半波脈動(dòng)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(guān)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(bǔ)償問題，也解決電磁兼容(EMC)和電磁干擾(EMI)問題。天津PFC電源價(jià)格PFC當(dāng)中的開關(guān)穩(wěn)壓電源功能和普通的開關(guān)穩(wěn)壓電源的區(qū)別并不巨大，只是在供電上有所區(qū)別。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津PFC電源價(jià)格,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038685836223/2985647.png"></div><p style="text-indent:25px">主動(dòng)式PFC的特點(diǎn)及總結(jié)：接下來我們就是看看采用主動(dòng)式PFC設(shè)計(jì)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(dòng)式PFC設(shè)計(jì)，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(dòng)式PFC設(shè)計(jì)的分析介紹，可以得出以下幾點(diǎn)：1、主動(dòng)式PFC設(shè)計(jì)復(fù)雜，成本較高。2、主動(dòng)式PFC比被動(dòng)式PFC性能要好，更加節(jié)能。3、主動(dòng)式PFC的功率因數(shù)zui高能超過99%。4、主動(dòng)式PFC能適應(yīng)更高的電壓范圍。</p><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(gè)開關(guān)周期內(nèi)“開”與“關(guān)”時(shí)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(lì)部分均由一塊集成電路完成，一塊IC可以完成設(shè)計(jì)?！疤罟入娐肥健睂儆谝环N新型無源功率因數(shù)校正電路。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津PFC電源價(jià)格,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041344381105/9656200.png"></div><p style="text-indent:25px">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(fù)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(gè)“斬波”電路把脈動(dòng)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(guān)穩(wěn)壓電源供電，其過程是; AC→DC→AC→DC。主動(dòng)式PFC就是一個(gè)有源的升壓電路。天津PFC電源價(jià)格</p><p style="text-indent:25px">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。天津PFC電源價(jià)格</p><p style="text-indent:25px">與被動(dòng)式PFC相比，主動(dòng)式PFC電路省去了一個(gè)較大體積的含有硅鋼片的電感，因此重量上也可能會比被動(dòng)式PFC電路輕。而作為其明顯區(qū)別就是一個(gè)電感線圈，不過卻不能因此判斷電源是否主動(dòng)式PFC，因?yàn)殡娫磧?nèi)部的電感線圈較多，沒有電路知識的人并不能加以區(qū)分。由于主動(dòng)式PFC電源PFC電路自身需要消耗一定電能，如果使用在低功率（300W以下）電源中往往不如被動(dòng)式PFC電源省電，因此在此類產(chǎn)品中并不常見。另外，因?yàn)橹鲃?dòng)式PFC電路的升壓能力，能容許較低的輸入電壓，所以適應(yīng)市電通常范圍較寬（達(dá)到110V-240V）。當(dāng)然，zui明顯的識別方式，莫過于通過產(chǎn)品外殼銘牌上的標(biāo)注來識別，有寫明“主動(dòng)式PFC”或者“AcTIve PFC”即是主動(dòng)式PFC。我們知道電源的PFC電路是為了提高電源的功率因數(shù)而設(shè)，但是“功率因數(shù)”并不就等于“轉(zhuǎn)換效率”，有人將主動(dòng)式0.99的功率因數(shù)理解為能得到99%的電源轉(zhuǎn)換效率，很顯然這是不對的。雖然兩個(gè)都是描述省電的概念，但對于電腦用戶而言，兩個(gè)概念的意義是不一樣的。天津PFC電源價(jià)格</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，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。公司自創(chuàng)立以來，投身于UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源，是電工電氣的主力軍。保益新能不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。保益新能始終關(guān)注電工電氣行業(yè)。滿足市場需求，提高產(chǎn)品價(jià)值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2345555.html</p></div></div></div></div></div><div id="txuwso8" class="page-right twoColRt"><div id="ge3ugdh" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hwjv3da" 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(qiáng) 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