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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a 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>?北京大功率電源模塊價格便宜嗎歡迎咨詢上海多商電子供應(yīng)</p><div id="owyac78" class="leftbox clearfix"><h1>北京大功率電源模塊價格便宜嗎歡迎咨詢上海多商電子供應(yīng)</h1><div id="qzbn2yf" class="proBig"><div id="3fx2gy7" 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="rasu3ax" 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="m8oiztp" 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>北京大功率電源模塊價格便宜嗎,大功率電源模塊</p><p><span>***更新：</span>2021-01-31 02:17:05</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="w2ah2ug" 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="fulipry" class="page-proshow02"><p class="title">詳細說明</p><div id="7m73pwy" class="box"><p><p style="text-indent:25px">大功率電源模塊要根據(jù)負載的波動情況來確定，北京大功率電源模塊價格便宜嗎，有的負載較穩(wěn)定，有的負載就波動較大，甚至于有的還會有空載、或滿載、或瞬間負載變大、或瞬間負載跌落的情況發(fā)生，若有這種問題，較好與電源模塊廠家說明，確認其設(shè)計上已有必要的應(yīng)對防護性設(shè)計措施，不是所有的電源都可以達到這個目標的，北京大功率電源模塊價格便宜嗎。負載的類型也是一個影響因素。一般的模塊，其輸出是按照默認為阻性負載而設(shè)計的，如果負載是感性或容性負載，北京大功率電源模塊價格便宜嗎，都需要與模塊廠家單獨說明，以便廠家出廠時的電源模塊內(nèi)部器件或參數(shù)稍作調(diào)整。散熱器翅片長度會造成散熱性能的差異問題。北京大功率電源模塊價格便宜嗎</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京大功率電源模塊價格便宜嗎,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060370833577/692328.png"></div><p style="text-indent:25px">大功率電源模塊熱設(shè)計的基本任務(wù)是：通過熱設(shè)計在滿足性能要求的前提下盡可能減少模塊內(nèi)部產(chǎn)生的熱量，減少熱阻，選擇合理的冷卻方式。發(fā)熱元器件要盡可能使其分散布局。設(shè)計PCB板時要保證印制線的載流容量，印制線的寬度必須適于電流的傳導(dǎo)。對于大功率的貼片元器件，可以采用大面積敷銅箔的方式，以加大PCB的散熱面積。電源模塊內(nèi)部可通過填充導(dǎo)熱硅膠和樹脂等來降低模塊內(nèi)部元器件的溫升。對于體積較大的電源模塊，可以使用散熱片進行散熱，增加對流和輻射的表面積從而有效地改善了電子器件的散熱效果。楊浦區(qū)大功率電源模塊種類大功率電源模塊的拓撲結(jié)構(gòu)有多種，反激、正激、推挽、半橋、全橋多種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京大功率電源模塊價格便宜嗎,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060763231217/4135973.png"></div><p style="text-indent:25px">不同的供應(yīng)商在市場上推出多種不同的模塊電源，而不同產(chǎn)品的輸入電壓、輸出功率、功能及拓撲結(jié)構(gòu)等都各不相同。而現(xiàn)在電源模塊的市場比較成熟，有很多標準性的產(chǎn)品，可以很快的幫助電子設(shè)計者快速的完成產(chǎn)品的電源供給設(shè)計電路。元冊科技在產(chǎn)品的設(shè)計上，完全按行業(yè)標準來設(shè)計制造產(chǎn)品，可以適應(yīng)大部分情況下的產(chǎn)品對電源模塊的需求。同時也會根據(jù)客戶的實際要求來對產(chǎn)品進行改造和優(yōu)化，盡可能的滿足客戶的個性化需求。采用大功率電源模塊可以節(jié)省開發(fā)時間，使產(chǎn)品可以更快推出市場，因此大功率電源模塊比集成式的解決方案優(yōu)勝。</p><p style="text-indent:25px">大功率電源模塊常見的低溫和高溫不良的現(xiàn)象有：工作振蕩，輸出電壓紋波和噪聲變大，頻率發(fā)生改變，嚴重的甚至輸出電壓跳變，模塊嘯叫。啟動不良，如啟動時輸出電壓升上波形有明顯掉溝，輸出電壓不穩(wěn)定，甚至模塊完全啟動失效。帶容性負載能力減弱，無法帶較大容性負載啟動。啟動時輸出電壓過沖幅度變大，超出規(guī)定范圍。重載或滿載工作時輸出電壓明顯降低。高溫老化損壞，模塊沒有輸出。所以，可靠性高的大功率電源模塊必須保證在高低溫等極端條件下工作正常，滿足性能參數(shù)要求。大功率電源模塊為設(shè)計電源供應(yīng)器的工程師提供多種不同的選擇。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京大功率電源模塊價格便宜嗎,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060581666400/7630396.png"></div><p style="text-indent:25px">因為大功率電源模塊產(chǎn)品有模塊電源的PCB設(shè)計規(guī)范要求，它要考慮散熱設(shè)計、EMC設(shè)計、干擾設(shè)計和生產(chǎn)工藝設(shè)計等等，涉及的內(nèi)容非常多，所以PCB設(shè)計在大功率電源模塊產(chǎn)品開發(fā)過程中是作為較重要的環(huán)節(jié)之一來對待的。大功率電源模塊都不是線性電源類型，都是開關(guān)電源，在開關(guān)管開通、關(guān)斷時，電壓和電流都會被斬波，造成較大瞬態(tài)變化（di/dt、dv/dt），所以開關(guān)電源是較大的EMC干擾源。隔離電源模塊常用的電路拓撲：隔離正激和隔離反激。通過產(chǎn)品內(nèi)部電路設(shè)計+PCB設(shè)計，使得產(chǎn)品的EMC性能達到較優(yōu)狀態(tài)。電源模塊體積越大，散熱特性越高，工作溫度越低。楊浦區(qū)大功率電源模塊種類</p><p style="text-indent:25px">大功率電源模塊在預(yù)期有效時間內(nèi)失效的主要原因是外部故障條件下?lián)p壞。北京大功率電源模塊價格便宜嗎</p><p style="text-indent:25px">一般情況下，負載電流的大小是決定功率的關(guān)鍵因素，為考慮到嵌入式系統(tǒng)設(shè)計的穩(wěn)定性和抗意外能力，建議根據(jù)實際情況，較小預(yù)留20%的設(shè)計余量，既實際使用中較大功率不超過電源模塊額定功率的80%，在這個功率范圍內(nèi)電源模塊各方面性能發(fā)揮都比較充分而且穩(wěn)定可靠。如果余量太大，造成資源浪費，如果余量太小則不利于溫升和可靠性。對于波動較大的負載，設(shè)計應(yīng)當(dāng)滿足峰值電流不超過大功率電源模塊較大承受范圍的基本原則，再根據(jù)負載波動的頻率，適當(dāng)?shù)募哟笤O(shè)計余量的方法，盡量提高可靠性。北京大功率電源模塊價格便宜嗎</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3086454.html</p></div></div></div></div></div><div id="rlsp8hy" class="page-right twoColRt"><div id="kewdfmt" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3u3seq7" class="recomPic likePro"><a href="http://www.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="2icjv2y" class="recomPic 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