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href="http://m.cdcfah.com/cp/second-dzyqj_jcdl(ic)/">集成電路(IC)</a>?<a href="http://m.cdcfah.com/cp/third-jcdl(ic)_dymk/">電源模塊</a>?充電電源產(chǎn)品介紹和諧共贏上海多商電子供應(yīng)</p><div id="i3c7xnk" class="leftbox clearfix"><h1>充電電源產(chǎn)品介紹和諧共贏上海多商電子供應(yīng)</h1><div id="jsph8do" class="proBig"><div id="z2t7kce" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393066695246270/8312686.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="oyvncyf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393066695246270/8312686.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2a97ax2" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>充電電源產(chǎn)品介紹,充電電源</p><p><span>***更新：</span>2020-12-14 03:19:12</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="8ztfca2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海多商電子有限公司</a></p><p><span>聯(lián)系人：</span>吳加斌</p><p><span>郵箱: </span>wu867@126.com</p><p><span>電話: </span>18121221687</p><p><span>傳真: </span>021_69585559</p><p><span>網(wǎng)址: </span>http://www.10000kw.com</p><p><span>手機(jī): </span>021-69585559</p><p><span>地址: </span>上海市嘉定區(qū)科福路358號4號樓4樓</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="8c4i27m" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mwogyfz" class="box"><p><p style="text-indent:25px">通信業(yè)的迅速發(fā)展極大地推動了通信電源的發(fā)展。高頻小型化的開關(guān)電源及其技術(shù)已成為現(xiàn)代通信供電系統(tǒng)的主流。在通信領(lǐng)域中，充電電源產(chǎn)品介紹，通常將整流器稱為一次電源，而將直流-直流(DC-DC)變換器稱為二次電源。一次電源的作用是將單相或三相交流電網(wǎng)變換成標(biāo)稱值為48V的直流電源。當(dāng)前在程控交換機(jī)用的一次電源中，充電電源產(chǎn)品介紹，傳統(tǒng)的相控式穩(wěn)壓電源己被高頻開關(guān)電源取代，高頻開關(guān)電源(也稱為開關(guān)型整流器SMR)通過MOSFET或IGBT的高頻工作，充電電源產(chǎn)品介紹，開關(guān)頻率一般控制在50-100kHz范圍內(nèi)，實現(xiàn)高效率和小型化。近幾年，開關(guān)整流器的功率容量不斷擴(kuò)大，單機(jī)容量己從48V/12.5A、48V/20A擴(kuò)大到48V/200A、48V/400A。充電電源模塊工作頻率高、體積小、可靠性高、便于安裝和擴(kuò)容的優(yōu)勢。充電電源產(chǎn)品介紹</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="充電電源產(chǎn)品介紹,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393066695246270/8312686.png"></div><p style="text-indent:25px">在進(jìn)行充電模塊電源的選擇時，工程師往往需要進(jìn)行成本、封裝、功率等方面的綜合比較。而生產(chǎn)廠家所提供的模塊電源產(chǎn)品也往往會為客戶提供幾個不同范圍的產(chǎn)品以便于挑選，例如商品級、工業(yè)級等等，都是比較常見的區(qū)分模式。由于不同的模塊電源溫度等級不同，制作材料和制造工藝也就不一樣，價格上的差距很大，一旦選擇不當(dāng)還會影響使用。因此，對溫度范圍的把握就顯得至關(guān)重要。為了保證效率，一種比較便捷有效的挑選方式是從溫度范圍出發(fā)，結(jié)合使用功率進(jìn)行綜合比較，可以幫助工程師快速找到比較合適的電源型號。河南充電電源規(guī)格是多少模塊電源工藝的發(fā)展將會降低熱阻改善散熱，有效的的提高模塊電源的效率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="充電電源產(chǎn)品介紹,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393063876175375/9011245.png"></div><p style="text-indent:25px">大功率開關(guān)型高壓直流電源應(yīng)用于靜電除塵、水質(zhì)改良、醫(yī)用X光機(jī)和CT機(jī)等大型設(shè)備。電壓高達(dá)50~l59kV,電流達(dá)到0.5A以上,功率可達(dá)100kW。自從70年代開始,日本的一些公司開始采用逆變技術(shù),將市電整流后逆變?yōu)?kHz左右的中頻,然后升壓。進(jìn)入80年代,高頻開關(guān)電源技術(shù)迅速發(fā)展。國內(nèi)對靜電除塵高壓直流電源進(jìn)行了研制,市電經(jīng)整流變?yōu)橹绷?采用全橋零電流開關(guān)串聯(lián)諧振逆變電路將直流電壓逆變?yōu)楦哳l電壓,然后由高頻變壓器升壓,后面整流為直流高壓。在電阻負(fù)載條件下,輸出直流電壓達(dá)到55kV,電流達(dá)到15mA,工作頻率為25.6kHz。</p><p style="text-indent:25px">開關(guān)形式電源：簡稱SMPS，又稱交流式電源、開關(guān)變換器，是一種高頻化電能轉(zhuǎn)換安裝，是電源供給器的一種。其功用是將一個位準(zhǔn)的電壓，透過不同方式的架構(gòu)轉(zhuǎn)換為用戶端所需求的電壓或電流。開關(guān)電源的輸入多半是交流電源（例如市電）或是直流電源，而輸出多半是需求直流電源的設(shè)備，例如個人電腦，而開關(guān)電源就停止兩者之間電壓及電流的轉(zhuǎn)換。開關(guān)電源不同于線性電源，開關(guān)電源應(yīng)用的切換晶體管多半是在全開形式（飽和區(qū)）及全閉形式（截止區(qū)）之間切換，這兩個形式都有低耗散的特性，切換之間的轉(zhuǎn)換會有較高的耗散，但時間很短，因而比擬儉省能源，產(chǎn)生廢熱較少。理想上，開關(guān)電源自身是不會耗費(fèi)電能的。電壓穩(wěn)壓是透過調(diào)整晶體管導(dǎo)通及斷路的時間來到達(dá)。相反的，線性電源在產(chǎn)生輸出電壓的過程中，晶體管工作在放大區(qū)，自身也會耗費(fèi)電能。開關(guān)電源的高轉(zhuǎn)換效率是其一大優(yōu)點(diǎn)，而且由于開關(guān)電源工作頻率高，能夠運(yùn)用小尺寸、輕重量的變壓器，因而開關(guān)電源也會比線性電源的尺寸要小，重量也會比擬輕。于體積較大的充電電源模塊，可以使用散熱片進(jìn)行散熱。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="充電電源產(chǎn)品介紹,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393063859212392/6529389.png"></div><p style="text-indent:25px">電源模塊的優(yōu)點(diǎn)：設(shè)計簡單，目前市場上種類繁多，有AC-DC、DC-DC、高壓等模塊，只需選擇適合的一款電源模塊，配上少量分立元件即可使用。模塊內(nèi)部高集成電路，使設(shè)計更加緊湊，供應(yīng)商還可以提供專業(yè)的技術(shù)支持和系統(tǒng)解決方案。與分立式較大的分別是廠商可以提供模型、外圍電路、模塊各參數(shù)曲線等重要數(shù)據(jù)。節(jié)省成本和時間，電源模塊有多種輸入輸出選擇，并且可以重復(fù)加或交叉加，構(gòu)成積木式組合電源，從而實現(xiàn)多路輸入輸出。相比分立式，調(diào)試更加簡單安全，使設(shè)計應(yīng)用簡化，縮短開發(fā)時間。充電電源模塊的體積越來越小，功率密度也越來越高。河南充電電源規(guī)格是多少</p><p style="text-indent:25px">輸出過載是指負(fù)載工作功率大于電源模塊的額定輸出功率。充電電源產(chǎn)品介紹</p><p style="text-indent:25px">充電電源“性能”和“成本”是一對相愛相殺的冤家，讓多少工程師面臨兩難的選擇，多少辛辛苦苦做的方案，由于成本問題不得不放棄。是為了性能不顧成本？還是為了成本**性能？怎樣平衡性能和成本，這是在產(chǎn)品設(shè)計中亙古不變的話題。對于同樣輸入輸出電壓的DC/DC電源模塊來說，輸出功率和工作溫度范圍是影響其成本的主要因素。電子器件工作溫度范圍一般分為：商業(yè)級（0~70℃）、工業(yè)級（-40~85℃）、車規(guī)級（-40~105℃）、**級（-55~125℃）等。由于溫度等級不同，對材料和制造工藝的要求不同，模塊成本就相差很大了。如果在體積（封裝形式）一定的條件下實際使用功率已經(jīng)接近模塊額定功率，那么模塊標(biāo)稱的溫度范圍就必須嚴(yán)格滿足實際使用需求甚至略有余量。如果由于成本考慮選擇了較小溫度范圍的產(chǎn)品，實際使用溫度已經(jīng)逼近模塊極限溫度的情況，怎么辦呢？這時可以采用降額使用的辦法，即選擇功率或封裝更大一些的產(chǎn)品，這樣“大馬拉小車”，溫升低，能夠從一定程度上緩解這一矛盾。充電電源產(chǎn)品介紹</p><p style="text-indent:25px">上海多商電子有限公司致力于電工電氣，是一家生產(chǎn)型的公司。上海多商電子致力于為客戶提供良好的充電電源，ACDC電源模塊，DCDC電源模塊，大功率電源模塊，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于電工電氣行業(yè)的發(fā)展。上海多商電子立足于全國市場，依托強(qiáng)大的研發(fā)實力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2394409.html</p></div></div></div></div></div><div id="d8rq84r" class="page-right twoColRt"><div id="hro88je" class="box01 margin10 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