普陀區(qū)大功率電源模塊規(guī)格 **** 上海多商電子供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="電源模塊是可以直接貼裝在印刷電路板上的電源供應(yīng)器，其特點是可為**集成電路（ASIC）、數(shù)字信號處理器(DSP)、微處理器，普陀區(qū)大功率電源模塊規(guī)格、存儲器、現(xiàn)場可編程門陣列(FPGA)及其他數(shù)字或模擬負載提供供電。由于模塊式結(jié)構(gòu)的優(yōu)點甚多"><meta name="keywords" content="普陀區(qū)大功率電源模塊規(guī)格,大功率電源模塊"><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" content="OBVzrC9aaQ" /> <meta 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href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a 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>?普陀區(qū)大功率電源模塊規(guī)格 **** 上海多商電子供應(yīng)</p><div id="qza4zfb" class="leftbox clearfix"><h1>普陀區(qū)大功率電源模塊規(guī)格 **** 上海多商電子供應(yīng)</h1><div id="34zy3y8" class="proBig"><div id="rar92jx" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060370833577/692328.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cqwf4hi" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060370833577/692328.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="i3lcl9e" 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>普陀區(qū)大功率電源模塊規(guī)格,大功率電源模塊</p><p><span>***更新：</span>2021-01-24 13:21:05</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="g2tk4ip" 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="ehirfie" class="page-proshow02"><p class="title">詳細說明</p><div id="rpgk42s" class="box"><p><p style="text-indent:25px">電源模塊是可以直接貼裝在印刷電路板上的電源供應(yīng)器，其特點是可為**集成電路（ASIC）、數(shù)字信號處理器 (DSP)、微處理器，普陀區(qū)大功率電源模塊規(guī)格、存儲器、現(xiàn)場可編程門陣列 (FPGA) 及其他數(shù)字或模擬負載提供供電。由于模塊式結(jié)構(gòu)的優(yōu)點甚多，因此模塊電源普遍用于交換設(shè)備、接入設(shè)備、移動通訊、微波通訊以及光傳輸、路由器等通信領(lǐng)域和汽車電子、航空航天等。尤其近幾年由于數(shù)據(jù)業(yè)務(wù)的飛速發(fā)展和分布式供電系統(tǒng)的不斷推廣,模塊電源的增幅已經(jīng)超出了一次電源。模塊電源具有隔離作用，普陀區(qū)大功率電源模塊規(guī)格，抗干擾能力強，普陀區(qū)大功率電源模塊規(guī)格，自帶保護功能，便于集成。隨著半導(dǎo)體工藝、封裝技術(shù)和高頻軟開關(guān)的大量使用,模塊電源功率密度越來越大,轉(zhuǎn)換效率越來越高,應(yīng)用也越來越簡單。電源檢測是綜合電源模塊在最大功率各式各樣負荷的具體表現(xiàn)。普陀區(qū)大功率電源模塊規(guī)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="普陀區(qū)大功率電源模塊規(guī)格,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060370833577/692328.png"></div><p style="text-indent:25px">大功率電源模塊是一種負反饋的穩(wěn)壓系統(tǒng)，其性能指標分為靜態(tài)指標和動態(tài)指標。靜態(tài)指標輸出電壓精度：衡量模塊的實際輸出電壓與標稱的輸出電壓的差異性。電壓調(diào)整率(源效應(yīng))：衡量模塊在不同輸入電壓的情況下輸出電壓的變化情況。電流調(diào)整率(負載效應(yīng))：衡量模塊在不同輸出電流的情況下輸出電壓的變化情況。交叉調(diào)整率：衡量模塊某一路的輸出功率的變化對其他路輸出電壓的影響情況，*對于雙路或多路模塊。溫度漂移：衡量模塊在不同環(huán)境溫度的情況下輸出電壓的變化情況。輸出電壓紋波：衡量模塊的輸出直流電壓上的交流電壓成分的大小。效率：衡量電源模塊在實現(xiàn)電壓轉(zhuǎn)換和功率傳輸?shù)耐瑫r自身的損耗情況。普陀區(qū)大功率電源模塊規(guī)格負載電流的大小是決定功率的關(guān)鍵。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="普陀區(qū)大功率電源模塊規(guī)格,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060379653267/3899269.png"></div><p style="text-indent:25px">大功率電源模塊降額設(shè)計是將元器件進行降額使用，就是使電子元器件的工作應(yīng)力適當?shù)陀谄湟?guī)定的額定值，降額使用的器件可延緩和減小其退化，提高了器件的可靠性，從而也提高了模塊的可靠性。電子元器件的故障率對電壓應(yīng)力、電流應(yīng)力和溫度應(yīng)力比較敏感，所以降額設(shè)計主要也是針對這三個方面。電子元器件的降額等級可以參考《國家**用標準——元器件降額準則GJB/Z35-93》，一般可分成三個降額等級： I 級降額是較大的降額，適用于設(shè)備故障將會危及安全，導(dǎo)致任務(wù)失敗和造成嚴重經(jīng)濟損失的情況。Ⅱ級降額：工作應(yīng)力減小對元器件可靠性增長有明顯效益，適用于設(shè)備故障會使工作任務(wù)降級，或需支付不合理的維修費用。 Ⅲ級降額：Ⅲ級降額是較小的降額，相對來說元器件成本也較低。適用于設(shè)備故障對工作任務(wù)的完成只有小的影響，或可迅速、經(jīng)濟地加以修復(fù)。</p><p style="text-indent:25px">如果在大功率電源模塊體積（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，那么模塊標稱的溫度范圍就必須嚴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。總之要么選擇寬溫度范圍的產(chǎn)品，功率利用更充分，封裝也更小一些，但價格較高；要么選擇一般溫度范圍產(chǎn)品，價格低一些，功率余量和封裝形式就得大一些。到底怎樣選擇，就需要根據(jù)實際的情況，綜合考慮了。大功率電源模塊減少電源管理部分所占的電路板面積。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="普陀區(qū)大功率電源模塊規(guī)格,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060385120850/9021330.png"></div><p style="text-indent:25px">大功率電源模塊現(xiàn)已普遍應(yīng)用在儀器儀表、汽車電子、軌道交通、數(shù)據(jù)通信、工業(yè)自動化、智能家居、航空航天、**、科研實驗、船舶、冶金礦山、電力系統(tǒng)、醫(yī)療電子、安防監(jiān)控、新能源、石油化工、手持電子設(shè)備等眾多領(lǐng)域。大功率電源模塊主要作用是電壓轉(zhuǎn)換，可以將交流或直流電變換成你想要的交流或直流電。例如將市電220V交流電（AC）轉(zhuǎn)換成5V直流電（DC），因為交流220V的電是高壓電，而電子產(chǎn)品是低壓供電的，這就需要一個轉(zhuǎn)換裝置，將交流220V的電壓轉(zhuǎn)換成低壓。大功率電源模塊輸入端的噪聲過大，未處理，直接耦合到電源模塊輸出端；普陀區(qū)大功率電源模塊規(guī)格</p><p style="text-indent:25px">一般大功率電源模塊產(chǎn)品都有內(nèi)置濾波器，能滿足一般電源應(yīng)用的要求。普陀區(qū)大功率電源模塊規(guī)格</p><p style="text-indent:25px">由于電源模塊越趨于小型化，功率密度相應(yīng)越來越高，大功率電源模塊有關(guān)熱設(shè)計方面的問題尤其突出。特別是對使用有電解電容的電源模塊，高溫會使電解電容的電解液加速消耗，有效減少電解電容的壽命。高溫會使元器件材料加速老化，例如使得變壓器漆包線的絕緣特性降低，導(dǎo)致絕緣耐壓不良甚至造成匝間短路。因此好的熱設(shè)計不*可延長大功率電源模塊和其周圍元器件的使用壽命，還可使整個產(chǎn)品發(fā)熱均勻，減少故障的發(fā)生。所以除了基本性能參數(shù)測試，多方面的高低溫測試，電應(yīng)力和熱應(yīng)力測試，保證足夠的降額設(shè)計要求，并通過長時間的老化測試，才可以判斷大功率電源模塊是否安全可靠。普陀區(qū)大功率電源模塊規(guī)格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2991568.html</p></div></div></div></div></div><div id="vevocv8" 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