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clearfix"><h1>靜安區(qū)大功率電源模塊制造商來電咨詢上海多商電子供應</h1><div id="882gc3x" class="proBig"><div id="ts3oqnz" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060608619787/3503048.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ketkc2y" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060608619787/3503048.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vp8qnur" class="content"><p><span>需求數量：</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>靜安區(qū)大功率電源模塊制造商,大功率電源模塊</p><p><span>***更新：</span>2021-01-22 11:19:52</p><p><span id="click" >瀏覽次數：1次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="jdmtq2i" 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="zikh7yv" class="page-proshow02"><p class="title">詳細說明</p><div id="hl333mt" class="box"><p><p style="text-indent:25px">由于電源模塊越趨于小型化，功率密度相應越來越高，大功率電源模塊有關熱設計方面的問題尤其突出，靜安區(qū)大功率電源模塊制造商。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，導致絕緣耐壓不良甚至造成匝間短路。因此好的熱設計不*可延長大功率電源模塊和其周圍元器件的使用壽命，還可使整個產品發(fā)熱均勻，減少故障的發(fā)生。所以除了基本性能參數測試，多方面的高低溫測試，靜安區(qū)大功率電源模塊制造商，電應力和熱應力測試，保證足夠的降額設計要求，并通過長時間的老化測試，靜安區(qū)大功率電源模塊制造商，才可以判斷大功率電源模塊是否安全可靠。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。靜安區(qū)大功率電源模塊制造商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靜安區(qū)大功率電源模塊制造商,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060608619787/3503048.png"></div><p style="text-indent:25px">有關統(tǒng)計數據表明，大功率電源模塊在預期有效時間內失效的主要原因是外部故障條件下損壞。而正常使用失效的機率是很低的。因此延長模塊電源壽命、提高系統(tǒng)可靠性的重要一環(huán)是選擇保護功能完善的產品，即在模塊電源外部電路出現故障時模塊電源能夠自動進入保護狀態(tài)而不至于長久失效，外部故障消失后應能自動恢復正常。大功率電源模塊的保護功能應至少包括輸入過壓、欠壓、軟啟動保護；輸出過壓、過流、短路保護，大功率產品還應有過溫保護等。一般建議實際使用功率是模塊電源額定功率的30～80%為宜（具體比例大小還與其他因素有關，后面將會提到。），這個功率范圍內模塊電源各方面性能發(fā)揮都比較充分而且穩(wěn)定可靠。負載太輕造成資源浪費，太重則對溫升、可靠性等不利。所有模塊電源均有一定的過載能力，例如某產品可達 110～120%，但是仍不建議長時間工作在過載條件下，畢竟這是一種短時應急之計。上海大功率電源模塊哪家便宜大功率電源模塊包含整個開關電源（含電感）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靜安區(qū)大功率電源模塊制造商,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。電壓調整率(源效應)：衡量模塊在不同輸入電壓的情況下輸出電壓的變化情況。電流調整率(負載效應)：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電壓轉換和功率傳輸的同時自身的損耗情況。</p><p style="text-indent:25px">當今電源系統(tǒng)的設計，對于電子設計人員來說遇到了極大的挑戰(zhàn)。他們要利用有限的資源和空間，在短時間內設計出靈活、高效、可靠和具有競爭力的電源系統(tǒng)。大功率電源模塊是目前設計人員的較好選擇。以模塊式電源取代分立元件設計方案，好比用微信息處理器件代替集成電路方塊，它可更靈活、更快捷地完成系統(tǒng)及開發(fā)，縮短開發(fā)或更改設計所花費的時間，節(jié)省人力及技術投資。設計簡單。只需1個大功率電源模塊，配上少量分立元件，即可獲得電源。質優(yōu)可靠。大功率電源模塊一般均采用全自動化生產，并配以高科技生產技術，因此品質穩(wěn)定、可靠。　　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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靜安區(qū)大功率電源模塊制造商,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060769491026/1799904.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，滿足性能參數要求。電源模塊體積越大，散熱特性越高，工作溫度越低。上海大功率電源模塊哪家便宜</p><p style="text-indent:25px">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；靜安區(qū)大功率電源模塊制造商</p><p style="text-indent:25px">據不完全統(tǒng)計，我國目前有電源生產廠家5000多家，而模塊電源生產廠家約幾百家。但國內模塊電源技術含量不高，市場占有率低，尤其是在中大功率領域，模塊電源效率低，體積大，不能滿足要求。前瞻根據模塊電源下游需求，2017年模塊電源的需求量約為63.9億元，未來幾年我國模塊電源市場銷售規(guī)模將以12%-18%增長速度發(fā)展。我國有模塊電源生產廠家約幾百家，以私營企業(yè)、小型企業(yè)為主，整體競爭力水平較低，行業(yè)集中度較低，市場排名**家廠商的市場占有率不到60%，且多數是國際品牌，本土品牌較少。尤其在中低端模塊電源產品市場，行業(yè)基本呈現完全競爭狀況，而在較好產品市場，由于相應的技術、工藝等的制約，市場集中度較高，市場份額主要被**的國際跨國公司占領。靜安區(qū)大功率電源模塊制造商</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2961722.html</p></div></div></div></div></div><div id="kog28gi" class="page-right twoColRt"><div id="kzr4hur" class="box01 margin10 clearfix"><h3><a 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