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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8zbdahy" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393063883948879/9015043.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hgyaxzg" 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>山東充電電源價錢,充電電源</p><p><span>***更新：</span>2020-12-09 04:18:13</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="peb8h4t" 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: </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="zog7hbd" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ysp7g4a" class="box"><p><p style="text-indent:25px">我們需要保證溫度范圍不僅要滿足工作實際需求，還要略有余量。不同的產(chǎn)品型號對于溫度范圍的要求是各不相同的，工程師在進行充電電源模塊溫度范圍選擇時，需要在較高溫度、較低溫度的上限以上進行考慮，以免出現(xiàn)溫度升高或降低之后系統(tǒng)性能不穩(wěn)定的情況。在滿足個條件的情況下，山東充電電源價錢，如果工程師出于對成本的控制問題，而選擇了較小溫度范圍的產(chǎn)品，那么就需要選擇功率或封裝更大一些的產(chǎn)品，這樣可以讓溫升降低一些，能夠從一定程度上緩解這一矛盾，山東充電電源價錢。從溫度范圍入手，進行模塊電源的綜合比較，可以幫助工程師快速決定封裝模式并進行成本預(yù)算，是一種比較方便快捷的挑選方法。電源模塊基于開關(guān)電源技術(shù)，山東充電電源價錢，采用較好的原材料，結(jié)合特殊的模塊化生產(chǎn)工藝制作而成。山東充電電源價錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東充電電源價錢,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393063883948879/9015043.png"></div><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。天津充電電源多少錢一個充電電源模塊的體積越來越小，功率密度也越來越高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東充電電源價錢,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393066669679636/9325936.png"></div><p style="text-indent:25px">電源在電子系統(tǒng)中，猶如人的心臟一樣，十分重要。選用合適的電源模塊，可省去電源設(shè)計、調(diào)試、生產(chǎn)、測試、老化、物料管理等諸多方面的麻煩，縮短產(chǎn)品開發(fā)周期，提高產(chǎn)品的整體可靠性和可維護性。那么該如何選擇呢？電源模塊按照輸入主要分為兩大類，AC和DC，當(dāng)輸入為交流電是選擇AC-DC電源模塊，交流輸入一般常見的有110VAC和220VAC兩種；當(dāng)輸入為直流時，選擇DC-DC電源模塊。隔離，可切斷浪涌等干擾信號的傳播路徑，其優(yōu)勢如：保護人員、負(fù)載設(shè)備免遭輸入端的瞬態(tài)高壓損害；去除隔離電路之間的接地環(huán)路以及改善抗干擾能力；在系統(tǒng)中輕松完成輸出接線，而不與主接地發(fā)生問題。</p><p style="text-indent:25px">高頻開關(guān)電源既可單機工作完成各種基本功能，又可并聯(lián)組合工作，并具有良好的并機均流效果。高頻開關(guān)直流電源通過與微機連接，可實現(xiàn)"遙測、遙信、遙控、遙調(diào)"四遙功能。高頻開關(guān)直流電源具備完善的保護功能，保證模塊或模塊組**運行和微機監(jiān)控下系統(tǒng)的安全、穩(wěn)定。高頻開關(guān)直流電源模塊采用總線采樣主、從均流控制方式。在并機運行時，高頻開關(guān)直流電源模塊組中能自動選出一臺主模塊，將分流器采集到的電流、電壓等外部參數(shù)進行處理，集中控制每一臺模塊的輸出電壓、電流。從而，即使在小電流時，也能得到較好的均流效果.充電電源常采用單相半控整流電路或不控整流電路（由無控制動能的整流二極管組成）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東充電電源價錢,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393063865980011/6273008.png"></div><p style="text-indent:25px">充電電源模塊結(jié)合了大部分必要的組件，以提供即插即用的解決方案，取代了40多種不同的元器件。這種整合可簡化并加速系統(tǒng)的設(shè)計，它也能明顯減少電源管理部分所占的電路板面積。為了達到所需要的電壓精度，這些電源模塊一般放在電路板上需要供電的芯片電路附近。但是隨著系統(tǒng)的復(fù)雜程度的提高，更大電流、更低電壓和更高頻率的系統(tǒng)中，布局更顯重要。常見的隔離型電源模塊是單列直插式的封裝(SIP)、開架的結(jié)構(gòu)。它們顯然可以給工程師帶來方便，并簡化系統(tǒng)的設(shè)計。但是一般來說它們只適用于較低開關(guān)頻率的設(shè)計，例如300kHz或更低頻率。再者，它們的功率密度通常未達到優(yōu)化，特別是與DC/DC芯片級模塊相比。充電電源模塊輸出過壓、過流、短路保護，大功率產(chǎn)品還應(yīng)有過溫保護等。山東充電電源價錢</p><p style="text-indent:25px">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。山東充電電源價錢</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，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)前在程控交換機用的一次電源中，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，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大，單機容量己從48V/12.5A、48V/20A擴大到48V/200A、48V/400A。山東充電電源價錢</p><p style="text-indent:25px">上海多商電子有限公司主要經(jīng)營范圍是電工電氣，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下充電電源，ACDC電源模塊，DCDC電源模塊，大功率電源模塊深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在電工電氣深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造電工電氣良好品牌。上海多商電子秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2326574.html</p></div></div></div></div></div><div id="7lxpryp" class="page-right twoColRt"><div id="m2vxubd" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jtqd88b" class="recomPic likePro"><a href="http://m.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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="od8qheq" class="recomPic likePro"><a 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