閔行區(qū)ACDC電源模塊廠家值得信賴上海多商電子供應-b2b網站_b2b電子商務平臺【買產品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="模塊內部器件的工作溫度的高低直接影響模塊電源的壽命，閔行區(qū)ACDC電源模塊廠家，器件溫度越低模塊壽命越長。在一定的工作條件下，模塊電源的損耗是一定的，閔行區(qū)ACDC電源模塊廠家，但是可以通過改善模塊電源的散熱條件來降低其溫升，閔行區(qū)ACDC"><meta name="keywords" content="閔行區(qū)ACDC電源模塊廠家,ACDC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 http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" 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>瀏覽次數：2次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="bqpip9b" 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="zont7pr" class="page-proshow02"><p class="title">詳細說明</p><div id="pjgs7yf" class="box"><p><p style="text-indent:25px"> 模塊內部器件的工作溫度的高低直接影響模塊電源的壽命，閔行區(qū)ACDC電源模塊廠家，器件溫度越低模塊壽命越長。在一定的工作條件下，模塊電源的損耗是一定的，閔行區(qū)ACDC電源模塊廠家，但是可以通過改善模塊電源的散熱條件來降低其溫升，閔行區(qū)ACDC電源模塊廠家，從而有效延長其使用壽命。50W以上的模塊電源必須安裝散熱器，散熱器的表面積越大越有利于散熱，且散熱器的安裝方向應盡量有利于空氣的自然對流，功率在150W以上除安裝散熱器以外還可以加裝扇強制風冷。此外在環(huán)境溫度較高或空氣流通條件較差的地方模塊須降額使用以減小功耗從而降低溫升，延長使用壽命。兩個電源模塊并聯用于向負載供電。閔行區(qū)ACDC電源模塊廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閔行區(qū)ACDC電源模塊廠家,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057688924086/7719694.png"></div><p style="text-indent:25px">acdc電源模塊的灌封是很重要的,這一工藝不僅涉及到acdc電源模塊的防護，(防水,防潮,防塵,防腐蝕等),還涉及到acdc電源模塊的熱設計. 電源模塊灌封材料常用的分為三大類:環(huán)氧樹脂、聚胺脂和硅橡膠、環(huán)氧樹脂由于硬度的原因不能用于應力敏感和含有貼片元件的模塊灌封,在模塊電源中基本被淘汰。但由于成本低，這種環(huán)氧樹脂還在對成本要求較高的微功率電源上應用。國內一些不良電源廠商，也將這種環(huán)氧樹脂用于 acdc電源模塊.，但由于應力問題，這種電源故障率非常高，采購者苦不堪言。電源模塊灌封時用的較多的是用加成型硅膠來灌封,這種硅膠一般是是1:1的配比,方便操作，設計為acdc電源模塊灌封時要注意其導熱系數.不過粘接能力不太強,可以使用底涂來改善. 聚胺脂在國內應用過一段時間，但于其硬度高，不方便維修，加之硅橡膠降價因素，聚胺脂的性價比不高。楊浦區(qū)ACDC電源模塊批發(fā)AC-DC開關電源的掉電保持時間是其重要的技術參數之一。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閔行區(qū)ACDC電源模塊廠家,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057800751672/9913637.png"></div><p style="text-indent:25px">二極管在快速截止和導通的過程中會出現尖峰，特別是整流二極管，在反向恢復過程中，電路寄生電感，電容會發(fā)生高頻振蕩，產生電磁干擾?？赡艿膶Σ呤牵杭覴C吸收電路，使二極管的能量能平緩放電。在陰極引腳上放置串珠環(huán)，使其電流不可調節(jié)，以減少尖峰。儲能電感，與變壓器類似，可以屏蔽。調整其參數，避免與電容器振蕩的電路。PCB布局和對齊準確地說，PCB是干擾源的耦合信道。 PCB的優(yōu)點和缺點直接對應于EMI源的控制。同時PCB板的布局和接線會造成不合理的EMI干擾。可能的對策是：減少干擾的較有效的方法是減小每個電流回路的面積（磁干擾）和通電導體的面積和長度（電場干擾）。電路中地不同，尤其是模擬地與數字地分開。PCB電源線和地線盡可能寬，以減少線路阻抗，從而減少公共噪聲引起的干擾。對于信號傳輸線路必須考慮阻抗匹配。</p><p style="text-indent:25px">acdc電源模塊與dcdc電源模塊**率大的一般是開關電源模式，所以一般輸入偶讀是較寬的電源范圍，體積也會會變壓器要小一些的，效率更高。acdc變換是將交流變換為直流，其功率流向是可以雙向的，功率流由電源流向，負載的稱為“整流”。功率由負載返回電源的稱為“有源逆變”。AC/DC 變換器輸入為50/60Hz的交流電，因必須經整流濾波，因此體積相對較大的濾波電容是必不可少的，同時因遇到安全標準及EMC指令的限制，交流輸入側必須加EMC率波電及使用符合安全標準的元件，這樣就限制AC/DC電源體積的小型化。另外，由于內部的高頻、高壓、大電流開關動作，使解決EMC電磁兼容問題難度加大，也就對內部高密度安裝電路設計提出了很高的要求。由于同樣的原因，高電壓、大電流開關使很多電源損耗增大，限制了很高的要求。由于同樣的原因，高電壓、大電流開關使很多電源工作損耗增大，限制了AC/DC變換器模塊化的進程，因此必須采用電源系統優(yōu)化方法，才能使其工作效率達到一定滿意程度。ACDC模塊電源是一種可直接安裝在印刷電路板上的電源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閔行區(qū)ACDC電源模塊廠家,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057754697878/9082335.png"></div><p style="text-indent:25px">Acdc電源模塊系列的電源模塊產品外接的電源一般是市電220V的電源，因為它受到外界不穩(wěn)定電壓的影響會比Acdc電源模塊系列的要大一點。而且市電-般也容易受雷電等不明電壓影響,Acdc電源模塊系列的模塊電源在使用過程中可能經常遇到一些故障：輸出過流:如果輸出端負載的功率超過了產品的額定功率那么其輸出電壓是有可能會較正常值偏低的,并且可能無法保證其他的正常輸出特性;輸出帶的容性負載過大。輸入電壓太高并遠超過允許的電壓輸入范圍。輸出端負載功率過大;輸出濾波電容過大;輸入電源功率過小;輸入接錯,把N或L接到FG上;輸入電壓太高導致模塊損壞。acdc電源模塊是集成了眾多的電子線路以及元器件的精密電子產品。閔行區(qū)ACDC電源模塊廠家</p><p style="text-indent:25px">一般模塊電源有較小負荷限制。閔行區(qū)ACDC電源模塊廠家</p><p style="text-indent:25px">使用的是線性電源，線性電源的工作原理，通過調節(jié)調整管RW改變輸出電壓的大小。因為所述調節(jié)器是等效于電阻器，所述電阻器產生時電流通過，從而導致低效率的熱交換。為了可以防止電源管理模塊發(fā)熱問題嚴重，可采取具有以下主要措施：加大散熱片、實行風冷、導熱材料需要解決（導熱硅脂、導熱灌封膠）、改用開關電源。功率輕負載，即一個電源電路負載阻抗相對較大，則負載電流的功率輸出相對較小。一些電源電路不允許輕負載，否則會使電源電路輸出的直流電壓上升到電源電路的傷害。通常，功率模塊具有較小負載的限制，制造商是不同的，通常約10％。如果沒有輸出進行負載太輕，建議在輸出端并聯作為一個假負載電阻。閔行區(qū)ACDC電源模塊廠家</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。公司從事電工電氣多年，有著創(chuàng)新的設計、強大的技術，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產品及服務。上海多商電子立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2715619.html</p></div></div></div></div></div><div id="rfcolp2" class="page-right twoColRt"><div id="3iurycw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qk7krgh" 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" 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</p></a></div><div id="7iary7u" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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