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href="http://www.cdcfah.com/cp/second-dgdq_dianyuan/">電源</a>?<a href="http://www.cdcfah.com/cp/third-dianyuan_qtdy/">其他電源</a>?山西大功率電源模塊品牌客戶至上上海多商電子供應(yīng)</p><div id="j2lart2" class="leftbox clearfix"><h1>山西大功率電源模塊品牌客戶至上上海多商電子供應(yīng)</h1><div id="tkrjl39" class="proBig"><div id="eifcpgs" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060581666400/7630396.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="blnaxzb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060581666400/7630396.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hr7vu3b" 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>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>山西大功率電源模塊品牌,大功率電源模塊</p><p><span>***更新：</span>2021-01-05 13:23:06</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3vo8jvs" 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(hào)4號(hào)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="vu3qvs7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="swtvseg" class="box"><p><p style="text-indent:25px">在目前的光伏變電系統(tǒng)以及汽車驅(qū)動(dòng)、工業(yè)驅(qū)動(dòng)領(lǐng)域，通過(guò)并聯(lián)將多個(gè)模塊電源并入一個(gè)電路系統(tǒng)以維持整體系統(tǒng)輸出電壓穩(wěn)定的做法，是非常常見(jiàn)的，也是很多工程師日常接觸的基礎(chǔ)性工作之一。那么，實(shí)現(xiàn)多個(gè)大功率電源模塊并聯(lián)均流的原理是什么呢？就讓我們來(lái)一探究竟吧！并聯(lián)均流原理一：改變等效輸出電阻實(shí)現(xiàn)均流。并聯(lián)均流原理二：調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流工作中比較常用的幾種模塊電源并聯(lián)方法中，山西大功率電源模塊品牌，有一半采用了調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流的原理，山西大功率電源模塊品牌。并聯(lián)均流原理二：調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流。工作中比較常用的幾種模塊電源并聯(lián)方法中，山西大功率電源模塊品牌，有一半采用了調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流的原理。大功率電源模塊的設(shè)計(jì)及測(cè)試有助減少采用新技術(shù)所承受的風(fēng)險(xiǎn)。山西大功率電源模塊品牌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西大功率電源模塊品牌,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060581666400/7630396.png"></div><p style="text-indent:25px">大家可能遇到在調(diào)試雙路大功率電源模塊時(shí)，出現(xiàn)輔路輸出不斷重啟，或則輔路電壓下跌很嚴(yán)重的現(xiàn)象。此現(xiàn)象70%是由于主路負(fù)載出現(xiàn)空載或則輕載，同時(shí)輔路負(fù)載很重導(dǎo)致。故電源主路一般會(huì)要求負(fù)載不小于額定負(fù)載的10%~20%。原理上主要是因?yàn)檩o路輸出電壓是依靠變壓器耦合穩(wěn)定輸出，輔路電壓的穩(wěn)定度與負(fù)載關(guān)系較大。市面上大部分大功率電源模塊不支持熱插拔，所謂熱插拔就是在帶電帶負(fù)載的情況下對(duì)模塊進(jìn)行插拔操作。一般需要熱插拔的模塊都是冗余模塊及備用模塊，此類大功率電源模塊都有加入熱插拔控制電路，防止插拔時(shí)產(chǎn)生尖峰電壓損壞電源。徐匯區(qū)大功率電源模塊哪個(gè)品牌好電磁兼容容易造成輸入電壓高，如雷擊浪涌、群脈沖。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西大功率電源模塊品牌,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060799657446/5364070.png"></div><p style="text-indent:25px">大功率電源模塊是系統(tǒng)與外部接觸、接口的，外部傳來(lái)的浪涌都經(jīng)過(guò)大功率電源模塊，所以需要浪涌防護(hù)電路。由于大功率電源模塊體積小，集成度高，內(nèi)部的控制芯片和晶體管等器件較大耐壓和較大電流都比較極限，一個(gè)浪涌電壓過(guò)來(lái)可能就使模塊損壞失效，導(dǎo)致整個(gè)系統(tǒng)的癱瘓，即使沒(méi)有立馬損壞，器件受到應(yīng)力沖擊，也會(huì)影響壽命和可靠性，所以為了保證電源模塊持續(xù)可靠的應(yīng)用，一般都需要加上浪涌防護(hù)電路。大功率電源模塊受限于體積小，很多模塊內(nèi)部不能加上防浪涌電路，所以需要在模塊的外部加上防浪涌電路。</p><p style="text-indent:25px">大致上大功率電源可分為線性電源和開(kāi)關(guān)電源兩類。線性電源主要包括工頻變壓器、大功率整流回路、輸出整流濾波器、控制電路、保護(hù)電路等。它是先將交流電經(jīng)過(guò)變壓器變壓，再經(jīng)過(guò)整流電路整流濾波得到直流電壓，再經(jīng)過(guò)電壓反饋調(diào)整輸出電壓，就得到高精度的直流電壓。開(kāi)關(guān)電源是通過(guò)電子技術(shù)實(shí)現(xiàn)的。先是把電網(wǎng)輸入交流整流成直流，通過(guò)逆變器高頻PWM(脈沖寬度調(diào)制)信號(hào)控制開(kāi)關(guān)管，輸出鋸齒狀的高頻交流電壓并加到開(kāi)關(guān)變壓器初級(jí)上，開(kāi)關(guān)變壓器次級(jí)感應(yīng)出高頻電壓,經(jīng)整流濾波供給負(fù)載需要的直流電壓，同時(shí)還防止高頻噪聲對(duì)負(fù)載的干擾。輸出部分通過(guò)一定的電路反饋給控制電路，控制PWM占空比,以達(dá)到穩(wěn)定輸出的目的。大功率電源模塊采用模塊式的設(shè)計(jì)，只要將問(wèn)題模塊更換便可。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西大功率電源模塊品牌,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060608619787/3503048.png"></div><p style="text-indent:25px">大功率電源模塊在電壓轉(zhuǎn)換過(guò)程中有能量損耗，產(chǎn)生熱能導(dǎo)致模塊發(fā)熱，降低電源的轉(zhuǎn)換效率，影響電源模塊正常工作，但什么情況下會(huì)造成大功率電源模塊發(fā)熱較嚴(yán)重呢？負(fù)載過(guò)流，超出數(shù)據(jù)手冊(cè)應(yīng)用范圍使得內(nèi)部關(guān)鍵器件溫度飆升；環(huán)境溫度過(guò)高或散熱不良；其他大發(fā)熱源熱傳遞。使用線性電源時(shí)要加散熱片,或選擇效率高的開(kāi)關(guān)電源；輸出功率更大的模塊，確保有70%~80%的負(fù)載降額；降低環(huán)境溫度，保持散熱良好。噪聲是衡量電源模塊優(yōu)劣的一大關(guān)鍵指標(biāo)，在應(yīng)用電路中，模塊周邊元器件的設(shè)計(jì)布局等也會(huì)影響輸出噪聲，哪些因素對(duì)輸出噪聲有較大影響呢？電源模塊與主電路噪聲敏感元件距離過(guò)近；主電路噪聲敏感元件的電源輸入端處未接去耦電容；多路系統(tǒng)中各單路輸出的電源模塊之間產(chǎn)生差頻干擾；地線處理不合理；電源模塊輸入端的噪聲過(guò)大，未處理，直接耦合到電源模塊輸出端；大功率電源模塊輸入電壓分交流輸入和直流輸入2種。徐匯區(qū)大功率電源模塊哪個(gè)品牌好</p><p style="text-indent:25px">大功率電源模塊為設(shè)計(jì)電源供應(yīng)器的工程師提供多種不同的選擇。山西大功率電源模塊品牌</p><p style="text-indent:25px">一種大功率電源模塊老煉方法，包括步驟:獲取大功率電源模塊殼溫工作溫度范圍，設(shè)置散熱裝置；確定大功率電源模塊殼溫測(cè)量點(diǎn)定位；確定并根據(jù)大功率電源模塊測(cè)量參考溫度的不同，進(jìn)行分組；對(duì)每組大功率電源模塊進(jìn)行老煉試驗(yàn)，根據(jù)試驗(yàn)結(jié)果，確定散熱裝置型號(hào)。在一些實(shí)施例中，所述散熱裝置采用熱傳導(dǎo)和風(fēng)冷結(jié)合的方式;其中，所述的熱傳導(dǎo)通過(guò)散熱片接觸大功率電源模塊自帶散熱基板來(lái)傳導(dǎo)熱量并且根據(jù)不同型號(hào)規(guī)格電源模塊選擇對(duì)應(yīng)的不同尺寸的散熱片作為仿真散熱片；另外，所述的風(fēng)冷通過(guò)調(diào)節(jié)風(fēng)扇風(fēng)速來(lái)實(shí)現(xiàn)對(duì)大功率電源模塊的散熱。在一些實(shí)施例中，所述確定大功率電源模塊殼溫測(cè)量點(diǎn)定位。山西大功率電源模塊品牌</p><p style="text-indent:25px">上海多商電子有限公司位于上海市嘉定區(qū)科福路358號(hào)4號(hào)樓4樓。公司業(yè)務(wù)涵蓋充電電源，ACDC電源模塊，DCDC電源模塊，大功率電源模塊等，價(jià)格合理，品質(zhì)有保證。公司秉持誠(chéng)信為本的經(jīng)營(yíng)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(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造電工電氣良好品牌。上海多商電子立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)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(lái)源地址: http://www.cdcfah.com/cp/2715888.html</p></div></div></div></div></div><div id="yiasu7v" class="page-right 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