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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qtvkwiu" 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>主動(dòng)PFC電源采購(gòu),PFC電源</p><p><span>***更新：</span>2020-11-11 11:26:50</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="dmjv7bv" 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="dw3gikm" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xqx234z" class="box"><p><p style="text-indent:25px">有源PFC的基本原理是在開(kāi)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(kāi)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，主動(dòng)PFC電源采購(gòu)，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，主動(dòng)PFC電源采購(gòu)。斬波電路的工作也類似于一個(gè)開(kāi)關(guān)電源，主動(dòng)PFC電源采購(gòu)。所以說(shuō)有源PFC開(kāi)關(guān)電源就是一個(gè)雙開(kāi)關(guān)電源的開(kāi)關(guān)電源電路，它是由斬波器(我們以后稱它為：“PFC開(kāi)關(guān)電源”)和穩(wěn)壓開(kāi)關(guān)電源(我們以后稱它為：“PWM開(kāi)關(guān)電源”)組成的。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。主動(dòng)PFC電源采購(gòu)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="主動(dòng)PFC電源采購(gòu),PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406038655679952/7203321.png"></div><p style="text-indent:25px">為了體現(xiàn)電器設(shè)備對(duì)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(cè)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(lái)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、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(jiàn)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(lái)說(shuō)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(guò)0.8；后者則是目前主流和高級(jí)電源的標(biāo)配，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(wú)限接近于1。廣州PFC電源推薦與被動(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="主動(dòng)PFC電源采購(gòu),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的英文全稱為“Power Factor Correction”，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（視在功率）之間的關(guān)系，也就是有效功率除以總耗電量（視在功率）的比值。基本上功率因數(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。功率因數(shù)是用來(lái)衡量用電設(shè)備用電效率的參數(shù)，低功率因數(shù)表示低電力效能。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。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。</p><p style="text-indent:25px">電源沒(méi)有pfc會(huì)有什么后果：PFC是用來(lái)提高功率因數(shù)的，在電網(wǎng)中存在有功功率和無(wú)功功率，功率因數(shù)提高后，無(wú)功功率就減少了。在我國(guó)，使用的是有功電度表，它是無(wú)法測(cè)量無(wú)功功率的，所以即使電源沒(méi)有PFC，也不會(huì)多扣電費(fèi)。但是在國(guó)外比如歐洲，它們的電度表也會(huì)計(jì)算無(wú)功功率的，沒(méi)有PFC就意味著要花更多的電費(fèi)。所以zui好買(mǎi)帶PFC的電源，主動(dòng)PFC電源的功率因數(shù)可以做的比較高，建議購(gòu)買(mǎi)主動(dòng)PFC的電源。關(guān)于電壓，這個(gè)跟PFC關(guān)系不是太大，但需要注意的是，某些國(guó)家比如美國(guó)日本，它們使用的是110V交流電，那你購(gòu)買(mǎi)電源就要購(gòu)買(mǎi)支持100-240V全電壓的產(chǎn)品，以免到國(guó)外不能使用。電源的輸入電壓可以從電源銘牌看到，正規(guī)的支持全電壓的電源的銘牌會(huì)標(biāo)注100-240V電壓字樣，很好辨識(shí)。但是PFC就不容易從外觀看了，除非你拆開(kāi)電源，簡(jiǎn)單的辦法就是到官方網(wǎng)站查詢產(chǎn)品資料。被動(dòng)式PFC通常為一塊體積較大的電感。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="主動(dòng)PFC電源采購(gòu),PFC電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637406041344381105/9656200.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(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），凡是功率擦超過(guò)75W的開(kāi)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(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。“電感補(bǔ)償式”包括靜音式和非靜音式。上海PFC電源批發(fā)廠家</p><p style="text-indent:25px">主動(dòng)式PFC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。主動(dòng)PFC電源采購(gòu)</p><p style="text-indent:25px">如何快速維修pfc電路：8、主開(kāi)關(guān)電壓+24V或+12 V的輸出電流較大，對(duì)整流二極管要求較高，一般采用低壓差的大功率肖特基二極管，不能用普通的整流二極管替換。另外接負(fù)載后，電壓反而上升，多屬于電源濾波不好引起。9、電源帶負(fù)載能力差，首先要測(cè)一下PFC 電壓是否正常（380 v），如果正常，問(wèn)題就在電源厚膜上，通常是電源厚膜帶載能力差引起，這一點(diǎn)請(qǐng)大家注意。10、電源板上，貼有**三角形標(biāo)記的散熱片以及散熱片下面的電路，均為熱地。嚴(yán)謹(jǐn)直接用手接觸！注意任何檢測(cè)設(shè)備，都不能直接跨接在熱地和冷地之間。主動(dòng)PFC電源采購(gòu)</p><p style="text-indent:25px">深圳市保益新能電氣有限公司位于大浪街道浪口社區(qū)華榮路496號(hào)德泰工業(yè)區(qū)1號(hào)廠房4層402，是一家專業(yè)的電氣設(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)、銷售及相關(guān)信息咨詢。公司。致力于創(chuàng)造***的產(chǎn)品與服務(wù)，以誠(chéng)信、敬業(yè)、進(jìn)取為宗旨，以建保益產(chǎn)品為目標(biāo)，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司堅(jiān)持以客戶為中心、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)、銷售及相關(guān)信息咨詢。市場(chǎng)為導(dǎo)向，重信譽(yù)，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。保益新能始終以質(zhì)量為發(fā)展，把顧客的滿意作為公司發(fā)展的動(dòng)力，致力于為顧客帶來(lái)***的UPS/EPS電源，雙向逆變器，安防電源，激光儲(chǔ)能電源。</p></p><br 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