被動(dòng)式電源pfc采購(gòu) 服務(wù)至上深圳市保益新能電氣供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(wú)用功率的電量。而對(duì)于商業(yè)工廠用電則會(huì)追加無(wú)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(lái)說(shuō)，我們不"><meta name="keywords" content="被動(dòng)式電源pfc采購(gòu),PFC電源"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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class="container clearfix tcPro"><section class="home-main container clearfix"><div id="bfp5r55" class="twoCol"><div id="zfvjhvd" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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>?被動(dòng)式電源pfc采購(gòu) 服務(wù)至上深圳市保益新能電氣供應(yīng)</p><div id="xhpnl3z" class="leftbox clearfix"><h1>被動(dòng)式電源pfc采購(gòu) 服務(wù)至上深圳市保益新能電氣供應(yīng)</h1><div id="n7j5lhl" class="proBig"><div id="t1dbpdj" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038577291288/3249165.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="frzpnrh" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038577291288/3249165.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="1t3ztrf" 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>被動(dòng)式電源pfc采購(gòu),PFC電源</p><p><span>***更新：</span>2021-02-03 02:09:35</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="xtbr7rh" 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="bxvbhx3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="tzpntzv" class="box"><p><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(wú)用功率的電量。而對(duì)于商業(yè)工廠用電則會(huì)追加無(wú)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(lái)說(shuō)，我們不需要支付無(wú)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），被動(dòng)式電源pfc采購(gòu)，凡是功率擦超過(guò)75W的開關(guān)電源，都需要至少安裝被動(dòng)PFC模塊，被動(dòng)式電源pfc采購(gòu)，被動(dòng)式電源pfc采購(gòu)。此外，在80Plus電源認(rèn)證中，則要求功率因數(shù)需要超過(guò)0.9，甚至更多。不過(guò)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(guò)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。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。被動(dòng)式電源pfc采購(gòu)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="被動(dòng)式電源pfc采購(gòu),PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038577291288/3249165.png"></div><p style="text-indent:25px">開關(guān)電源中的pfc是什么意思？PFC就是功率因數(shù)校正，由于開關(guān)電源不是純電阻負(fù)載，屬于容性負(fù)載，大量的開關(guān)電源同時(shí)使用會(huì)干擾電網(wǎng)，使電網(wǎng)不平衡。一般開關(guān)電源的功率因數(shù)PF為0.6左右。理想的純電阻負(fù)載功率因數(shù)PF為1，開關(guān)電源經(jīng)功率因數(shù)PF校正后可以達(dá)到0.8以上！開關(guān)電源功率因素低，會(huì)影響電網(wǎng)的使用效率，比如：10KW的電力變壓器，如果使用功率因數(shù)PF為0.6，功率1KW的開關(guān)電源，只能同時(shí)帶動(dòng)6臺(tái)這樣的開關(guān)電源，如果使用功率因數(shù)PF為0.9，功率1KW的開關(guān)電源，可以同時(shí)帶動(dòng)9臺(tái)這樣的開關(guān)電源！大量使用功率因素低的開關(guān)電源，會(huì)將許多功率消耗在電線上，使電線發(fā)熱。還會(huì)使電網(wǎng)的正弦波失真變形，影響其它電器的正常使用。一般大功率開關(guān)電源，都要求功率因數(shù)PF在0.8以上！對(duì)于手機(jī)充電器這樣的小功率開關(guān)電源，沒(méi)有要求。對(duì)于LED電源，有些對(duì)功率因數(shù)也有要求。廣州主動(dòng)PFC電源廠家電話主動(dòng)式PFC通過(guò)高頻電感線圈、開關(guān)電子管、高壓濾波電容以及控制IC等元件，組成一個(gè)電路。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="被動(dòng)式電源pfc采購(gòu),PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041410054963/9568029.png"></div><p style="text-indent:25px">pfc對(duì)電源的重要性：在一個(gè)純電抗負(fù)載電路中，電壓和電流之間會(huì)產(chǎn)生一定的是時(shí)間差，也就會(huì)出現(xiàn)相位差（zui大理論值為90度，一般情況多為45度），那么電壓與電流的乘積，就不一定每一時(shí)刻都為“正”了。在一個(gè)半周期內(nèi)，能量為“正”，另外一個(gè)半周期內(nèi)能量為“負(fù)”，那么就是說(shuō)，前半周期電源從電網(wǎng)中獲取能量，而在后半個(gè)周期內(nèi)，這些能量又會(huì)回流到國(guó)家電網(wǎng)中。所以如果按照一個(gè)周期計(jì)算，那么電源獲得的能量會(huì)為“零”，沒(méi)有能量。上面的兩種描述都是純理論的理想狀態(tài)。但在實(shí)際應(yīng)用中，電路中會(huì)有大量的電阻、電感和電容，在同一時(shí)刻都會(huì)有負(fù)載，也就會(huì)產(chǎn)生不同方向的“能量”。因此，所有的正向能量，我們稱其為“實(shí)際功率”，而反向回流電網(wǎng)的能量則稱之為“無(wú)用功率”，那么“實(shí)際功率”與“無(wú)用功率”的綜合，就是之前我們所說(shuō)的“視在功率”。但正如我們之前所提到的，“功率因數(shù)”實(shí)際上就是“實(shí)際功率”與“視在功率”的比值。而zui為理想的比值為“1”，當(dāng)然這還無(wú)法做到，因此只能無(wú)限接近于“1”，這個(gè)數(shù)值我們一般稱之為“功率因數(shù)”。</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(duì)于供電線路來(lái)說(shuō)該整流電路輸出沒(méi)有直接接濾波電容，所以其對(duì)于供電線路來(lái)說(shuō)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(shuō)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。主動(dòng)式PFC電路的升壓能力，能容許較低的輸入電壓。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="被動(dòng)式電源pfc采購(gòu),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和被動(dòng)式PFC電源共同與不同之處簡(jiǎn)單地說(shuō)，主動(dòng)式PFC就是一個(gè)有源的升壓電路。它通過(guò)高頻電感線圈、開關(guān)電子管、高壓濾波電容以及控制IC等元件，組成一個(gè)可以將輸入電壓提高的電路，通過(guò)升高輸入電壓來(lái)減少電流在流向下級(jí)電路中的電能損耗。為什么升高輸入電壓會(huì)減少電能損耗呢？我們知道，功率P=UI，在電網(wǎng)的輸入總功率P一定的情況下，只要提高電壓，電流值就會(huì)變小，從而降低電路的電能損耗。我們國(guó)家的電網(wǎng)系統(tǒng)之所以要采用高壓電線來(lái)傳輸電能，也是出于降低能耗的考慮。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。被動(dòng)式電源pfc采購(gòu)</p><p style="text-indent:25px">目前的PFC有兩種，一種為被動(dòng)式PFC（也稱無(wú)源PFC）和主動(dòng)式PFC（也稱有源式PFC）。被動(dòng)式電源pfc采購(gòu)</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(guò)**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(guò)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(shuō)明了一些問(wèn)題，但是如果您具備專業(yè)知識(shí)，或者通過(guò)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(wú)功功率較高，電力公司需要多發(fā)電來(lái)維持這個(gè)無(wú)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?！北粍?dòng)式電源pfc采購(gòu)</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3132035.html</p></div></div></div></div></div><div id="5lhxdh3" class="page-right twoColRt"><div id="vbz7fdh" class="box01 margin10 clearfix"><h3><a 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