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class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="dxut8to" class="twoCol"><div id="3e28udz" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</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>?江西大功率電源模塊定制歡迎來電上海多商電子供應</p><div id="3ihnhda" class="leftbox clearfix"><h1>江西大功率電源模塊定制歡迎來電上海多商電子供應</h1><div id="fugnpb7" class="proBig"><div id="d8kri3j" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060769491026/1799904.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xo78ug7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060769491026/1799904.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yczlnzq" 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>產品關鍵詞：</span>江西大功率電源模塊定制,大功率電源模塊</p><p><span>***更新：</span>2020-12-30 01:17:14</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="dskbseg" 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="7zgd399" class="page-proshow02"><p class="title">詳細說明</p><div id="3fwdf8m" class="box"><p><p style="text-indent:25px">大家可能遇到在調試雙路大功率電源模塊時，出現(xiàn)輔路輸出不斷重啟，或則輔路電壓下跌很嚴重的現(xiàn)象。此現(xiàn)象70%是由于主路負載出現(xiàn)空載或則輕載，同時輔路負載很重導致。故電源主路一般會要求負載不小于額定負載的10%~20%。原理上主要是因為輔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)定度與負載關系較大。市面上大部分大功率電源模塊不支持熱插拔，江西大功率電源模塊定制，江西大功率電源模塊定制，江西大功率電源模塊定制，所謂熱插拔就是在帶電帶負載的情況下對模塊進行插拔操作。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，防止插拔時產生尖峰電壓損壞電源。大功率電源模塊噪聲隔離：（模擬電路與數(shù)字電路隔離、強弱信號隔離）。江西大功率電源模塊定制</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西大功率電源模塊定制,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060769491026/1799904.png"></div><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，設置散熱裝置；確定大功率電源模塊殼溫測量點定位；確定并根據(jù)大功率電源模塊測量參考溫度的不同，進行分組；對每組大功率電源模塊進行老煉試驗，根據(jù)試驗結果，確定散熱裝置型號。在一些實施例中，所述散熱裝置采用熱傳導和風冷結合的方式;其中，所述的熱傳導通過散熱片接觸大功率電源模塊自帶散熱基板來傳導熱量并且根據(jù)不同型號規(guī)格電源模塊選擇對應的不同尺寸的散熱片作為仿真散熱片；另外，所述的風冷通過調節(jié)風扇風速來實現(xiàn)對大功率電源模塊的散熱。在一些實施例中，所述確定大功率電源模塊殼溫測量點定位。江西大功率電源模塊定制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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西大功率電源模塊定制,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060391019354/5564291.png"></div><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。</p><p style="text-indent:25px">在較近幾年中，大功率電源模塊產品在通訊通信領域的應用范圍得到了較大的拓展，新產品的研發(fā)速度也明顯加快。現(xiàn)在我們將會分享一種大功率開關電源的設計方案，本方案采用的是采用半橋式功率逆變電路，大功率電源模塊主體部分的設計相對簡單，希望能夠對各位工程師的研發(fā)設計工作有所幫助。這種基于SG3525的半橋式大功率開關電源的電路系統(tǒng)設計，在該電路系統(tǒng)中，三相交流電經EMI濾波器濾波，有效減少了交流電源輸入的電磁干擾，同時防止開關電源產生的諧波串擾到輸入電源端。再經過橋式整流電路、濾波電路變成直流電壓加在P、N兩點間。P、N之間接入一個小容量、高耐壓的無感電容，起到高頻濾波的作用。大功率電源模塊安全隔離：強電弱電隔離＼IGBT隔離驅動＼浪涌隔離保護＼雷電隔離保護。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西大功率電源模塊定制,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060581666400/7630396.png"></div><p style="text-indent:25px">大功率電源模塊的拓撲結構有多種，反激、正激、推挽、半橋、全橋多種，每種因為其原理的不同，也表現(xiàn)為在某些特性指標方面的優(yōu)越性。反激電源在開關的一個周期中，充電的時段沒有放電，就是因為這個特性，其時間響應特性、紋波特性就很難做到很好，雖然可以通過大的儲能電容協(xié)助解決一點，但原理性缺陷終歸是硬傷，智力不足是可以通過勤勞來彌補，但補來補去遇到臨界難題的時候終歸跨不過某個坎兒。漏感也大等等問題，但其優(yōu)點是電路簡單，成本低，體積小，不必加磁復位繞組，而且輸入電壓范圍比較寬。也正因為此，才有了其占總電源市場7成以上的份額。功率電源模塊是一種經過測試的完整電源，兼具低噪聲、高效率和緊湊布局等優(yōu)勢。江西大功率電源模塊定制</p><p style="text-indent:25px">大功率電源模塊包含整個開關電源（含電感）。江西大功率電源模塊定制</p><p style="text-indent:25px">大功率電源模塊的輸出電壓為什么會變低？輸入電壓偏低是較容易被忽略的情況，當輸出有問題時我們應該一時間檢查輸入是否正常。對于輸入為定壓或寬壓的電源模塊，當輸入值偏低時將導致輸出值也偏低。當然，這種情況是有限度的，對于一個特定的模塊來說，當輸入電壓過低時將導致其不能工作，無輸出電壓。輸出過載是指負載工作功率大于電源模塊的額定輸出功率，過載情況下電源模塊的輸出電壓明顯被拉低。以ZY0505FS-1W為例，當負載電流增大到300mA時，輸出電壓只有4.5V。持續(xù)過載將影響到電源模塊的工作效率、穩(wěn)定性以及散熱情況，導致模塊使用壽命減少。江西大功率電源模塊定制</p><p style="text-indent:25px">上海多商電子有限公司主要經營范圍是電工電氣，擁有一支專業(yè)技術團隊和良好的市場口碑。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。公司秉持誠信為本的經營理念，在電工電氣深耕多年，以技術為先導，以自主產品為重點，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/2619429.html</p></div></div></div></div></div><div id="3oqxeq7" class="page-right twoColRt"><div id="c8wiu8f" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2i2rnp3" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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