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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>?天津主動(dòng)PFC電源廠家推薦服務(wù)至上深圳市保益新能電氣供應(yīng)</p><div id="krtvnpr" class="leftbox clearfix"><h1>天津主動(dòng)PFC電源廠家推薦服務(wù)至上深圳市保益新能電氣供應(yīng)</h1><div id="7gnkmtf" class="proBig"><div id="2tqso8p" 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="8fryv7n" 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="8gyrgs8" 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>天津主動(dòng)PFC電源廠家推薦,PFC電源</p><p><span>***更新：</span>2021-01-17 13:14:32</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="udqnugv" 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="xhelnzl" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="kzr2ajf" 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、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(duì)環(huán)保有益。6、因應(yīng)未來CPU發(fā)展趨勢(shì)，天津主動(dòng)PFC電源廠家推薦，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(jìng)爭(zhēng)力，天津主動(dòng)PFC電源廠家推薦，天津主動(dòng)PFC電源廠家推薦。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。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。天津主動(dòng)PFC電源廠家推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津主動(dòng)PFC電源廠家推薦,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041284644784/1270972.png"></div><p style="text-indent:25px">PFC電源與開關(guān)電源的區(qū)別是什么：在PFC開關(guān)電源當(dāng)中，開關(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。普通的開關(guān)穩(wěn)壓電源需要220V整流供電，而PFC穩(wěn)壓開關(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)過整流才能被后級(jí)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。濟(jì)南PFC電源批發(fā)價(jià)格PFC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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津主動(dòng)PFC電源廠家推薦,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038609127250/5992744.png"></div><p style="text-indent:25px">被動(dòng)式PFC：被動(dòng)式PFC一般分“電感補(bǔ)償式”和“填谷電路式(Valley Fill Circuit)”“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)，“電感補(bǔ)償式”包括靜音式和非靜音式?！半姼醒a(bǔ)償式”的功率因數(shù)只能達(dá)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(shù)校正電路，其特點(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，通過填平谷點(diǎn)，使輸入電流從尖峰脈沖變?yōu)榻咏谡也ǖ牟ㄐ危瑢⒐β室驍?shù)提高到0.9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(shù)校正電路相比，其優(yōu)點(diǎn)是電路簡(jiǎn)單，功率因數(shù)補(bǔ)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(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(duì)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?？蛇_(dá)98%以上，但成本也相對(duì)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。</p><p style="text-indent:25px">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(duì)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?？蛇_(dá)98%以上，但成本也相對(duì)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。交過電費(fèi)的人都知道，同樣是使用電網(wǎng)中的電能，為什么工業(yè)用電和居民用電的價(jià)格卻不盡相同呢？大多數(shù)人也許會(huì)給出這樣一個(gè)答案：“工業(yè)用電是要?jiǎng)?chuàng)造價(jià)值，進(jìn)行商業(yè)盈利的；其次就是工業(yè)設(shè)備污染環(huán)境比較多；再次就是工業(yè)用電的傳輸成本高?！边@個(gè)答案說明了一些問題，但是如果您具備專業(yè)知識(shí)，或者通過前面的學(xué)習(xí)，了解了什么是功率因數(shù)，那么您肯定能給出更專業(yè)的答案：“工業(yè)中使用的用電設(shè)備多為電感或電容性設(shè)備，其功率因數(shù)相對(duì)居民用電設(shè)備的功率因數(shù)較低，造成了電網(wǎng)中無功功率較高，電力公司需要多發(fā)電來維持這個(gè)無功功率，浪費(fèi)了這部分的電能，所以工業(yè)用電用戶就需要為這部分浪費(fèi)的電能買單?！迸c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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津主動(dòng)PFC電源廠家推薦,PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041362838188/2093902.png"></div><p style="text-indent:25px">pfc對(duì)電源的重要性：這里我們需要指出的是，居民用戶只需要支付實(shí)際功率（瓦數(shù)）所消耗的電量，則不會(huì)支付回流到電網(wǎng)中無用功率的電量。而對(duì)于商業(yè)工廠用電則會(huì)追加無用功率這一部分的用電，因?yàn)樗麄兯碾娏康幕鶖?shù)太大了。雖然對(duì)于居民用戶來說，我們不需要支付無用功率的電費(fèi)，但是根據(jù)《歐盟EN61000-3-2號(hào)標(biāo)準(zhǔn)》（當(dāng)然中國(guó)也有相關(guān)的法規(guī)條款），凡是功率擦超過75W的開關(guān)電源，都需要至少安裝被動(dòng)PFC模塊。此外，在80Plus電源認(rèn)證中，則要求功率因數(shù)需要超過0.9，甚至更多。不過在數(shù)年前，許多的電源廠商大多都在電源產(chǎn)品中使用被動(dòng)PFC模塊。而PFC模塊則是一個(gè)減少諧波電流，并且將非線性負(fù)載轉(zhuǎn)換成線性負(fù)載的過濾器，電容和電感所產(chǎn)生的功率因數(shù)則會(huì)向單位值跟近一些。主動(dòng)式PFC一般由功率MOFET開關(guān)管、PFC二極管、電感、等六個(gè)電子元器件組成。天津主動(dòng)PFC電源廠家推薦</p><p style="text-indent:25px">“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)。天津主動(dòng)PFC電源廠家推薦</p><p style="text-indent:25px">無PFC電源的缺點(diǎn)1.主動(dòng)PFC在低功率時(shí)，自身?yè)p耗大于被動(dòng)PFC。畢竟它是一個(gè)復(fù)雜的電路，工作起來要消耗電能;而被動(dòng)PFC就是一個(gè)電感。不過很少有人讓高級(jí)電源工作的低負(fù)載下，這個(gè)問題也就不明顯了。2.主動(dòng)PFC還有一個(gè)zui麻煩的缺點(diǎn)：電磁干擾大。為了搞定電磁干擾，EMI濾波電路要加強(qiáng)，電路更加復(fù)雜。有些電源在待機(jī)時(shí)發(fā)出高頻噪音，也是因?yàn)橹鲃?dòng)PFC。3.無源PFC電路是以**電源的效率和穩(wěn)定性為代價(jià)的。很多不太懂電源人，盲目的把電源加上無源PFC電路，以為這樣就能很容易的解決電路的PF值問題了，事實(shí)上，這樣在很多時(shí)候是得不償失。4.增加一點(diǎn)PF值，**了電源本身的更多優(yōu)良性能，無源PFC大約有兩種方式。天津主動(dòng)PFC電源廠家推薦</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2888591.html</p></div></div></div></div></div><div id="3vs3g87" class="page-right twoColRt"><div id="y8in8tv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="azwyfmo" 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" 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