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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xt59zfl" 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="fzpnflj" 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>南京被動(dòng)式PFC電源,PFC電源</p><p><span>***更新：</span>2020-11-21 03:14:49</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="rt5h7l9" 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="frpnd7p" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="jfth777" class="box"><p><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(lái)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(guò)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，南京被動(dòng)式PFC電源，容易產(chǎn)生震動(dòng)噪音。5、當(dāng)電源供應(yīng)器輸出超過(guò)300瓦以上，南京被動(dòng)式PFC電源，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(jìng)爭(zhēng)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(lái)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?yè)p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，南京被動(dòng)式PFC電源，因?yàn)橛懈嗟碾娔懿](méi)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(méi)有真正給用戶(hù)節(jié)省。被動(dòng)式PFC由多塊硅鋼片外部纏繞銅線而成。南京被動(dòng)式PFC電源</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京被動(dòng)式PFC電源,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041284644784/1270972.png"></div><p style="text-indent:25px">PFC電源與開(kāi)關(guān)電源的區(qū)別是什么：在PFC開(kāi)關(guān)電源當(dāng)中，開(kāi)關(guān)穩(wěn)壓電源是非常重要的一個(gè)組成部分。PFC當(dāng)中的開(kāi)關(guān)穩(wěn)壓電源功能和普通的開(kāi)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。普通的開(kāi)關(guān)穩(wěn)壓電源需要220V整流供電，而PFC穩(wěn)壓開(kāi)關(guān)電源是由B+PFC供電。整流以后不加濾波電容器，把未經(jīng)濾波的脈動(dòng)正半周電壓作為斬波器的供電源，由于斬波器的一連串的做“開(kāi)關(guān)”工作脈動(dòng)的正電壓被“斬”成電流波形，其波形的特點(diǎn)是：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(guò)整流才能被后級(jí)PWM開(kāi)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(wèn)題，也解決電磁兼容（EMC）和電磁干擾（EMI）問(wèn)題。南京被動(dòng)式PFC電源主動(dòng)PFC在低功率時(shí)，自身?yè)p耗大于被動(dòng)PFC。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京被動(dòng)式PFC電源,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038609127250/5992744.png"></div><p style="text-indent:25px">開(kāi)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(guò)整流才能被后級(jí)PWM開(kāi)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(wèn)題，也解決電磁兼容(EMC)和電磁干擾(EMI)問(wèn)題。</p><p style="text-indent:25px">主動(dòng)式PFC的特點(diǎn)及總結(jié)：接下來(lái)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(lái)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(guò)了99%，這說(shuō)明了他們?cè)诠?jié)能方面還是非常出色的。通過(guò)我們對(duì)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(guò)99%。4、主動(dòng)式PFC能適應(yīng)更高的電壓范圍。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京被動(dòng)式PFC電源,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038635709246/2295771.png"></div><p style="text-indent:25px">主動(dòng)PFC電路由高頻電感、開(kāi)關(guān)管、電容以及控制IC等元件構(gòu)成。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。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。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(wú)是處，其結(jié)構(gòu)簡(jiǎn)單，穩(wěn)定性上表現(xiàn)好，比較適合中低端電源。希望你根本個(gè)人的實(shí)際情況選擇！PFC的意思是功率因數(shù)校正器。南京PFC電源批發(fā)</p><p style="text-indent:25px">PFC還能減少電源對(duì)市電電網(wǎng)的干擾，尤其是避免它在突然啟動(dòng)時(shí)對(duì)其他電器的影響。南京被動(dòng)式PFC電源</p><p style="text-indent:25px">PFC的全稱(chēng)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(shí)提高電源對(duì)市電的利用率，但不能減小轉(zhuǎn)換過(guò)程的電能損耗，也沒(méi)有節(jié)約電能的功能。主動(dòng)式PFC電源能減少電源對(duì)市電電網(wǎng)的干擾，尤其是避免它在突然啟動(dòng)時(shí)對(duì)其他電器的影響。PFC分為主動(dòng)式（有源）和被動(dòng)式（無(wú)源）兩種，它們是衡量電源檔次高低的一個(gè)重要因素。一般來(lái)說(shuō)，功率在250W～300W的電源多采用被動(dòng)式PFC，而主動(dòng)式PFC則常用于400W及以上的中高級(jí)電源。就性能而言，主動(dòng)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(jì)，能適應(yīng)更高的電壓范圍。你可以通過(guò)電源散熱孔查看該產(chǎn)品采用了何種PFC電路：被動(dòng)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(dòng)式PFC則由電感線圈配合IC控制芯片組成。南京被動(dòng)式PFC電源</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(shè)備、電源產(chǎn)品、逆變器，UPS，通訊電源，儲(chǔ)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(wú)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(jì)量產(chǎn)品、新能源設(shè)備、太陽(yáng)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(xiāo)售及相關(guān)信息咨詢(xún)。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。保益新能深耕行業(yè)多年，始終以客戶(hù)的需求為向?qū)?，為客?hù)提供***的UPS/EPS電源，雙向逆變器，安防電源，激光儲(chǔ)能電源。保益新能致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶(hù)產(chǎn)品上的貼心，為用戶(hù)帶來(lái)良好體驗(yàn)。保益新能創(chuàng)始人王永麗，始終關(guān)注客戶(hù)，創(chuàng)新科技，竭誠(chéng)為客戶(hù)提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2077041.html</p></div></div></div></div></div><div id="777n5h7" class="page-right twoColRt"><div id="xtt7hfx" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dtr97xf" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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