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class="leftbox clearfix"><h1>嘉定區(qū)大功率電源模塊哪家好貼心服務(wù) 上海多商電子供應(yīng)</h1><div id="gcum987" class="proBig"><div id="adv2pb7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060799657446/5364070.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="o2co944" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060799657446/5364070.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xvx3y3a" 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>嘉定區(qū)大功率電源模塊哪家好,大功率電源模塊</p><p><span>***更新：</span>2021-01-20 00:23:01</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="788cu3m" 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(jī): </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="5gcjiar" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="5hjlkmd" class="box"><p><p style="text-indent:25px">***的大功率電源模塊都經(jīng)過專業(yè)的電源研發(fā)團(tuán)隊按照嚴(yán)格的標(biāo)準(zhǔn)進(jìn)行元器件選擇和認(rèn)證、專業(yè)的電氣設(shè)計和工藝開發(fā)、完善的可靠性測試和嚴(yán)格的生產(chǎn)測試，嘉定區(qū)大功率電源模塊哪家好，以確保其***高可靠性。其中測試包括全溫度范圍的電氣性能測試，環(huán)路穩(wěn)定性測試、可靠性測試，極限測試等。每一個大功率電源模塊在出廠前都會經(jīng)過系統(tǒng)嚴(yán)格的測試。相對而已，分立器件集成解決方案較難對電源進(jìn)行深入的測試，嘉定區(qū)大功率電源模塊哪家好，因為整個供電系統(tǒng)與電路上的其他功能系統(tǒng)緊密聯(lián)系一起；模塊電源一般采用多層PCB或鋁基板，功率密度高，小型化，嘉定區(qū)大功率電源模塊哪家好。選擇小型化，高功率密度的模塊電源，可以給系統(tǒng)節(jié)省更多的空間。大功率電源模塊輸入電壓分交流輸入和直流輸入2種。嘉定區(qū)大功率電源模塊哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)大功率電源模塊哪家好,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060799657446/5364070.png"></div><p style="text-indent:25px">大功率電源模塊剛上電就燒毀冒煙了，輸入端的電容炸裂，是什么原因?qū)е碌哪兀枯斎腚妷簶O性接反了；輸入電壓遠(yuǎn)遠(yuǎn)高于標(biāo)稱電壓；輸出端極性電容接反了；輸出電路易引起短路或者外接負(fù)載在上電瞬間存在大電流。解決方法：接線前注意檢查或加防反接保護(hù)電路；選擇合適的輸入電壓；上電前檢查電容極性，確保正確；在電源模塊輸出端加短路保護(hù)。大功率電源模塊用一段壞了，再換一塊沒幾天又壞了，是電源模塊質(zhì)量問題，還是使用不當(dāng)造成的？輸出負(fù)載過輕使其可靠性降低所致輸出端電容過大導(dǎo)致模塊啟動時造成損壞；輸入端電壓長期偏高導(dǎo)致模塊輸入端開關(guān)管損壞。徐匯區(qū)大功率電源模塊多少錢一個大功率電源模塊噪聲隔離：（模擬電路與數(shù)字電路隔離、強(qiáng)弱信號隔離）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)大功率電源模塊哪家好,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060379653267/3899269.png"></div><p style="text-indent:25px">有關(guān)統(tǒng)計數(shù)據(jù)表明，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。而正常使用失效的機(jī)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(hù)功能完善的產(chǎn)品，即在模塊電源外部電路出現(xiàn)故障時模塊電源能夠自動進(jìn)入保護(hù)狀態(tài)而不至于長久失效，外部故障消失后應(yīng)能自動恢復(fù)正常。大功率電源模塊的保護(hù)功能應(yīng)至少包括輸入過壓、欠壓、軟啟動保護(hù)；輸出過壓、過流、短路保護(hù)，大功率產(chǎn)品還應(yīng)有過溫保護(hù)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(guān)，后面將會提到。），這個功率范圍內(nèi)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(fù)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(chǎn)品可達(dá) 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(yīng)急之計。</p><p style="text-indent:25px">在電源系統(tǒng)設(shè)計中，當(dāng)一個大功率電源模塊的功率無法滿足系統(tǒng)的設(shè)計要求時，我們往往會考慮多個模塊的并聯(lián)使用。如果并聯(lián)設(shè)計不合理，就會導(dǎo)致并聯(lián)模塊輸出均流失效，會有燒壞大功率電源模塊、甚至損壞后級系統(tǒng)的風(fēng)險?，F(xiàn)在跟大家簡單分享一些造成大功率電源模塊并聯(lián)失效的真正原因。目前電源系統(tǒng)的發(fā)展趨勢采用新型的功率器件實現(xiàn)小型、輕量、高效率的電源模塊化，通過并聯(lián)進(jìn)行擴(kuò)容。電源并聯(lián)運(yùn)行是電源產(chǎn)品模塊化、大容量化的一個有效方案，是電源技術(shù)發(fā)展的趨勢之一，是實現(xiàn)組合大功率電源系統(tǒng)的重點。大功率電源模塊每一模塊的設(shè)計及測試都按照標(biāo)準(zhǔn)性能的規(guī)定進(jìn)行。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)大功率電源模塊哪家好,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060370833577/692328.png"></div><p style="text-indent:25px">提高功率密度和高集成度是大功率電源模塊發(fā)展的趨勢，其中，提高功率密度意味著提升負(fù)載能力、縮小尺寸這兩方面的進(jìn)步。尺寸縮小是提高功率密度中的一部分，也是提高集成度中的一部分。這種變化勢必會遇到許多新的挑戰(zhàn)，特別是對于功率器件來說，散熱問題非常關(guān)鍵，將影響到器件的可靠性。在大功率電源模塊出廠前，都有經(jīng)過嚴(yán)格的測試，老化測試是其中一項。經(jīng)過老化測試的大功率電源模塊，可以保證產(chǎn)品的質(zhì)量，讓用戶在使用過程中減少出現(xiàn)故障幾率，延長使用壽命。大功率電源模塊產(chǎn)品大多數(shù)故障是發(fā)生在前期和后期，廠家無法準(zhǔn)確控制后期，所以只能控制前期。在把產(chǎn)品交到客戶手上前，把問題提前扼殺在出貨前。開關(guān)電源是通過電子技術(shù)實現(xiàn)的。嘉定區(qū)大功率電源模塊哪家好</p><p style="text-indent:25px">大功率電源模塊損耗主要的表達(dá)方式是發(fā)熱，發(fā)熱小的操作溫度低。嘉定區(qū)大功率電源模塊哪家好</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(dāng)輸出有問題時我們應(yīng)該一時間檢查輸入是否正常。對于輸入為定壓或?qū)拤旱碾娫茨K，當(dāng)輸入值偏低時將導(dǎo)致輸出值也偏低。當(dāng)然，這種情況是有限度的，對于一個特定的模塊來說，當(dāng)輸入電壓過低時將導(dǎo)致其不能工作，無輸出電壓。輸出過載是指負(fù)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(dāng)負(fù)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(dǎo)致模塊使用壽命減少。嘉定區(qū)大功率電源模塊哪家好</p></p><br /><p>文章來源地址: 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