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當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_nengyuan/">能源</a>?<a href="http://www.cdcfah.com/cp/second-nengyuan_pdsdsb/">配電輸電設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-pdsdsb_qtpdsdsb/">其他配電輸電設(shè)備</a>?南京主動(dòng)式電源pfc批發(fā)價(jià)格值得信賴深圳市保益新能電氣供應(yīng)</p><div id="neax8pb" class="leftbox clearfix"><h1>南京主動(dòng)式電源pfc批發(fā)價(jià)格值得信賴深圳市保益新能電氣供應(yīng)</h1><div id="6ugsu8d" class="proBig"><div id="g3axp4z" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038635709246/2295771.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bc38jln" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038635709246/2295771.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ospmoiz" 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>南京主動(dòng)式電源pfc批發(fā)價(jià)格,PFC電源</p><p><span>***更新：</span>2021-01-20 01:09:12</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="w3ctf4p" 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(hào)德泰工業(yè)區(qū)1號(hào)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="et8nyxo" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="aegnet3" class="box"><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(píng)測中常提到的PF值，這是一個(gè)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，南京主動(dòng)式電源pfc批發(fā)價(jià)格、降低EMI電磁干擾、降低諧波失真度等作用，從是實(shí)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(dòng)式PFC和主動(dòng)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(huì)超過0.8；后者則是目前主流和高級(jí)電源的標(biāo)配，南京主動(dòng)式電源pfc批發(fā)價(jià)格，南京主動(dòng)式電源pfc批發(fā)價(jià)格，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(jí)產(chǎn)的功率因數(shù)甚至可以無限接近于1。“功率因數(shù)校正”，通俗的話說，就是提高有用功的比重。南京主動(dòng)式電源pfc批發(fā)價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京主動(dòng)式電源pfc批發(fā)價(jià)格,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038635709246/2295771.png"></div><p style="text-indent:25px">被動(dòng)式PFC的缺點(diǎn)：1、當(dāng)歐洲EN的諧波規(guī)范越來越嚴(yán)格時(shí)，電感量產(chǎn)的質(zhì)量需提升，而生產(chǎn)難度將提高。2、沉重重量增加電源供應(yīng)器在運(yùn)輸過程損壞的風(fēng)險(xiǎn)。3、原料短缺的風(fēng)險(xiǎn)較高。4、如電源內(nèi)部結(jié)構(gòu)固定的不正確，容易產(chǎn)生震動(dòng)噪音。5、當(dāng)電源供應(yīng)器輸出超過300瓦以上，被動(dòng)式PFC在材料成本及產(chǎn)品性能表現(xiàn)上將越不具競爭力。PFC作為決定電源轉(zhuǎn)換效率的重要因素，其主要分為主動(dòng)PFC與被動(dòng)PFC。前者帶來的是更高的功率因數(shù)但成本也會(huì)有很大的增加，后者雖然價(jià)格低廉但功率因數(shù)也會(huì)有所下降。主動(dòng)PFC電路本身損耗的電能比起被動(dòng)PFC電路更高，從而直接降低了電源的轉(zhuǎn)換效率，因?yàn)橛懈嗟碾娔懿]有被實(shí)際負(fù)載利用上。PFC電路所調(diào)節(jié)的功率因數(shù)，是給電廠節(jié)省了電能，而并沒有真正給用戶節(jié)省。南京主動(dòng)式電源pfc批發(fā)價(jià)格主動(dòng)式PFC還可用作輔助電源，因此在使用主動(dòng)式PFC電路中，往往不需要待機(jī)變壓器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京主動(dòng)式電源pfc批發(fā)價(jià)格,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041410054963/9568029.png"></div><p style="text-indent:25px">目前電腦用的電源PFC有兩種，一是被動(dòng)式PFC，也稱無源PFC；一是主動(dòng)式PFC，也稱有源式PFC。1、主動(dòng)式PFC主要由高頻電感、開關(guān)管、電容以及控制IC等元件構(gòu)成，可簡單的歸納為升壓型開關(guān)電源電路，這種電路的特點(diǎn)是構(gòu)造復(fù)雜，但優(yōu)點(diǎn)很多：功率因數(shù)高達(dá)0.99、低損耗和高可靠、輸入電壓可以從90V到270V(寬幅輸入)等，由于輸出DC電壓紋波很小，因此采用主動(dòng)式PFC的電源不需要采用很大容量的濾波電容。2、被動(dòng)式PFC通常為一塊體積較大的電感，其內(nèi)部由多塊硅鋼片外部纏繞銅線而組成，它的原理是采用電感補(bǔ)償方法通過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)，被動(dòng)式PFC的功率因數(shù)不是很高，只能達(dá)到0.7~0.8，因此其效率也比較低，發(fā)熱量也比較大。被動(dòng)式PFC也并非一無是處，其結(jié)構(gòu)簡單，穩(wěn)定性上表現(xiàn)好，比較適合中低端電源。3、主動(dòng)式PFC設(shè)計(jì)復(fù)雜，成本較高；主動(dòng)式PFC比被動(dòng)式PFC性能要好，更加節(jié)能；主動(dòng)式PFC的功率因數(shù)更高；被動(dòng)式PFC電源成本低。正因如此，主動(dòng)式PFC已成為當(dāng)前電腦主流電源。如果你只是想用低端的電腦穩(wěn)定使用的話，那買個(gè)被動(dòng)式PFC的電源使用沒問題。</p><p style="text-indent:25px">有源PFC的基本原理是在開關(guān)電源的整流電路和濾波電容之間增加一個(gè)DC-DC的斬波電路(附加開關(guān)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(fù)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(gè)開關(guān)電源。所以說有源PFC開關(guān)電源就是一個(gè)雙開關(guān)電源的開關(guān)電源電路，它是由斬波器(我們以后稱它為：“PFC開關(guān)電源”)和穩(wěn)壓開關(guān)電源(我們以后稱它為：“PWM開關(guān)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(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。“電感補(bǔ)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="南京主動(dòng)式電源pfc批發(fā)價(jià)格,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041293638980/8296733.png"></div><p style="text-indent:25px">主動(dòng)式PFC：而主動(dòng)式PFC則由電感電容及電子元器件組成，體積小、通過**IC去調(diào)整電流的波形，對電流電壓間的相位差進(jìn)行補(bǔ)償。主動(dòng)式PFC可以達(dá)到較高的功率因數(shù)──通常可達(dá)98%以上，但成本也相對較高。此外，主動(dòng)式PFC還可用作輔助電源，因此在使用主動(dòng)式PFC電路中，往往不需要待機(jī)變壓器，而且主動(dòng)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?！FC相關(guān)專業(yè)術(shù)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。無源PFC電路是以**電源的效率和穩(wěn)定性為代價(jià)的。南京主動(dòng)式電源pfc批發(fā)價(jià)格</p><p style="text-indent:25px">PFC分為主動(dòng)式（有源）和被動(dòng)式（無源）兩種。南京主動(dòng)式電源pfc批發(fā)價(jià)格</p><p style="text-indent:25px">主動(dòng)式PFC的一般結(jié)構(gòu)：主動(dòng)式PFC一般由功率MOFET開關(guān)管、PFC二極管、電感、濾波電容和NTC熱敏電阻以及IC整合電路六個(gè)電子元器件組成。下面我們就來看看這些配置吧。主電容及IC整合電路：主動(dòng)式PFC電路的設(shè)計(jì)還是比較復(fù)雜的，這無形之中就增加了電源的制作成本，因此在市場上，采用主動(dòng)式PFC電路設(shè)計(jì)的電源給消費(fèi)者的感覺就是價(jià)格比較高。雖然說主動(dòng)式PFC電路設(shè)計(jì)比較復(fù)雜，成本也比較高，但是它帶來的效益還是不可估量的，zui重要的是，它能適應(yīng)更高的電壓范圍，這對于玩家來說是非常關(guān)鍵的。南京主動(dòng)式電源pfc批發(fā)價(jià)格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2920405.html</p></div></div></div></div></div><div id="fnpry3f" class="page-right twoColRt"><div id="r8b32y7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3vxzw97" class="recomPic likePro"><a href="http://www.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) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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