虹口區(qū)大功率電源模塊批發(fā)哪家好服務(wù)至上上海多商電子供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="在生產(chǎn)大功率電源模塊過(guò)程中，有些問(wèn)題是我們?nèi)庋蹮o(wú)法看見(jiàn)的，如來(lái)料的元器件好壞、虛焊等問(wèn)題。雖然在生產(chǎn)線剛出來(lái)的大功率電源模塊可以直接使用，但是很多時(shí)候產(chǎn)品到客戶手上才發(fā)現(xiàn)用不了。這是因?yàn)樵谏a(chǎn)過(guò)程中只是簡(jiǎn)單的通電測(cè)試，并沒(méi)有做長(zhǎng)時(shí)間不同環(huán)境"><meta name="keywords" content="虹口區(qū)大功率電源模塊批發(fā)哪家好,大功率電源模塊"><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"> 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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>虹口區(qū)大功率電源模塊批發(fā)哪家好,大功率電源模塊</p><p><span>***更新：</span>2021-01-07 09:17:15</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="uo3t88j" 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(hào)4號(hào)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="baxpbip" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="bq88dkr" class="box"><p><p style="text-indent:25px">在生產(chǎn)大功率電源模塊過(guò)程中，有些問(wèn)題是我們?nèi)庋蹮o(wú)法看見(jiàn)的，如來(lái)料的元器件好壞、虛焊等問(wèn)題。雖然在生產(chǎn)線剛出來(lái)的大功率電源模塊可以直接使用，但是很多時(shí)候產(chǎn)品到客戶手上才發(fā)現(xiàn)用不了。這是因?yàn)樵谏a(chǎn)過(guò)程中只是簡(jiǎn)單的通電測(cè)試，并沒(méi)有做長(zhǎng)時(shí)間不同環(huán)境的通電測(cè)試。大功率電源模塊的老化方式主要有常溫帶負(fù)載老化和高溫通電老化測(cè)試倆種，常用的是高溫老化。通過(guò)高溫老化可以使產(chǎn)品元件的缺陷或質(zhì)量不良暴露出來(lái)，從而提高了產(chǎn)品的穩(wěn)定性和可靠性。大功率電源模塊的高溫老化是指仿真產(chǎn)品的高溫使用環(huán)境，老化測(cè)試時(shí)間一般要求為12-48小時(shí)，虹口區(qū)大功率電源模塊批發(fā)哪家好。高溫老化流程有倆種，一種是設(shè)置在高溫環(huán)境中，虹口區(qū)大功率電源模塊批發(fā)哪家好，通電老化，虹口區(qū)大功率電源模塊批發(fā)哪家好。一種是在高溫環(huán)境下，用更惡劣的環(huán)境條件沖擊大功率電源模塊。大功率電源模塊接地環(huán)路消除：遠(yuǎn)程信號(hào)傳輸＼分布式電源供電系統(tǒng)。虹口區(qū)大功率電源模塊批發(fā)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="虹口區(qū)大功率電源模塊批發(fā)哪家好,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060363069764/9500531.png"></div><p style="text-indent:25px">在較近幾年中，大功率電源模塊產(chǎn)品在通訊通信領(lǐng)域的應(yīng)用范圍得到了較大的拓展，新產(chǎn)品的研發(fā)速度也明顯加快。現(xiàn)在我們將會(huì)分享一種大功率開(kāi)關(guān)電源的設(shè)計(jì)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(shè)計(jì)相對(duì)簡(jiǎn)單，希望能夠?qū)Ω魑还こ處煹难邪l(fā)設(shè)計(jì)工作有所幫助。這種基于SG3525的半橋式大功率開(kāi)關(guān)電源的電路系統(tǒng)設(shè)計(jì)，在該電路系統(tǒng)中，三相交流電經(jīng)EMI濾波器濾波，有效減少了交流電源輸入的電磁干擾，同時(shí)防止開(kāi)關(guān)電源產(chǎn)生的諧波串?dāng)_到輸入電源端。再經(jīng)過(guò)橋式整流電路、濾波電路變成直流電壓加在P、N兩點(diǎn)間。P、N之間接入一個(gè)小容量、高耐壓的無(wú)感電容，起到高頻濾波的作用。虹口區(qū)大功率電源模塊批發(fā)哪家好大功率電源模塊每一模塊可以分別加以嚴(yán)格測(cè)試，以確保其高度可靠。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="虹口區(qū)大功率電源模塊批發(fā)哪家好,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060581666400/7630396.png"></div><p style="text-indent:25px">大功率電源模塊降額設(shè)計(jì)是將元器件進(jìn)行降額使用，就是使電子元器件的工作應(yīng)力適當(dāng)?shù)陀谄湟?guī)定的額定值，降額使用的器件可延緩和減小其退化，提高了器件的可靠性，從而也提高了模塊的可靠性。電子元器件的故障率對(duì)電壓應(yīng)力、電流應(yīng)力和溫度應(yīng)力比較敏感，所以降額設(shè)計(jì)主要也是針對(duì)這三個(gè)方面。電子元器件的降額等級(jí)可以參考《國(guó)家**用標(biāo)準(zhǔn)——元器件降額準(zhǔn)則GJB/Z35-93》，一般可分成三個(gè)降額等級(jí)： I 級(jí)降額是較大的降額，適用于設(shè)備故障將會(huì)危及安全，導(dǎo)致任務(wù)失敗和造成嚴(yán)重經(jīng)濟(jì)損失的情況。Ⅱ級(jí)降額：工作應(yīng)力減小對(duì)元器件可靠性增長(zhǎng)有明顯效益，適用于設(shè)備故障會(huì)使工作任務(wù)降級(jí)，或需支付不合理的維修費(fèi)用。 Ⅲ級(jí)降額：Ⅲ級(jí)降額是較小的降額，相對(duì)來(lái)說(shuō)元器件成本也較低。適用于設(shè)備故障對(duì)工作任務(wù)的完成只有小的影響，或可迅速、經(jīng)濟(jì)地加以修復(fù)。</p><p style="text-indent:25px">在目前的光伏變電系統(tǒng)以及汽車驅(qū)動(dòng)、工業(yè)驅(qū)動(dòng)領(lǐng)域，通過(guò)并聯(lián)將多個(gè)模塊電源并入一個(gè)電路系統(tǒng)以維持整體系統(tǒng)輸出電壓穩(wěn)定的做法，是非常常見(jiàn)的，也是很多工程師日常接觸的基礎(chǔ)性工作之一。那么，實(shí)現(xiàn)多個(gè)大功率電源模塊并聯(lián)均流的原理是什么呢？就讓我們來(lái)一探究竟吧！并聯(lián)均流原理一：改變等效輸出電阻實(shí)現(xiàn)均流。并聯(lián)均流原理二：調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流工作中比較常用的幾種模塊電源并聯(lián)方法中，有一半采用了調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流的原理。并聯(lián)均流原理二：調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流。工作中比較常用的幾種模塊電源并聯(lián)方法中，有一半采用了調(diào)節(jié)開(kāi)路輸出電壓實(shí)現(xiàn)均流的原理。一般輸出工作頻率越低，其體積越大，發(fā)熱量越大，輸出紋波越大。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="虹口區(qū)大功率電源模塊批發(fā)哪家好,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060385120850/9021330.png"></div><p style="text-indent:25px">由于某些大功率電源模塊內(nèi)部的電子元器件的電壓余量設(shè)計(jì)不夠，在輸入電壓過(guò)高時(shí)，造成模塊損壞，甚至燒毀，這是就需要我們?cè)?*做一些保護(hù)，哪些常見(jiàn)原因易造成輸入電壓偏高呢？在大功率電源模塊輸入端進(jìn)行熱插拔上電，此時(shí)其電壓尖峰及浪涌電流都較高，抗壓差的模塊會(huì)被瞬間擊穿損壞；輸出端負(fù)載過(guò)輕，輕于10%的額定負(fù)載，對(duì)一些非線性穩(wěn)壓的電源產(chǎn)品來(lái)說(shuō)，模塊不一定會(huì)損壞，但會(huì)影響后級(jí)的一些性能，如效率偏低，模塊偏熱等；前級(jí)供電電源的電壓沖擊導(dǎo)致輸入電壓偏高或產(chǎn)生干擾電壓，電磁兼容也較容易造成輸入電壓高，如雷擊浪涌、群脈沖。大功率電源模塊的保護(hù)功能應(yīng)至少包括輸入過(guò)壓、欠壓、軟啟動(dòng)保護(hù)。虹口區(qū)大功率電源模塊批發(fā)哪家好</p><p style="text-indent:25px">大功率電源模塊包含整個(gè)開(kāi)關(guān)電源（含電感）。虹口區(qū)大功率電源模塊批發(fā)哪家好</p><p style="text-indent:25px">由于電源模塊越趨于小型化，功率密度相應(yīng)越來(lái)越高，大功率電源模塊有關(guān)熱設(shè)計(jì)方面的問(wèn)題尤其突出。特別是對(duì)使用有電解電容的電源模塊，高溫會(huì)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(huì)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(dǎo)致絕緣耐壓不良甚至造成匝間短路。因此好的熱設(shè)計(jì)不僅可延長(zhǎng)大功率電源模塊和其周圍元器件的使用壽命，還可使整個(gè)產(chǎn)品發(fā)熱均勻，減少故障的發(fā)生。所以除了基本性能參數(shù)測(cè)試，多方面的高低溫測(cè)試，電應(yīng)力和熱應(yīng)力測(cè)試，保證足夠的降額設(shè)計(jì)要求，并通過(guò)長(zhǎng)時(shí)間的老化測(cè)試，才可以判斷大功率電源模塊是否安全可靠。虹口區(qū)大功率電源模塊批發(fā)哪家好</p><p style="text-indent:25px">上海多商電子有限公司位于上海市嘉定區(qū)科福路358號(hào)4號(hào)樓4樓。公司業(yè)務(wù)分為充電電源，ACDC電源模塊，DCDC電源模塊，大功率電源模塊等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于電工電氣行業(yè)的發(fā)展。上海多商電子憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來(lái)的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2742994.html</p></div></div></div></div></div><div id="7hols7y" class="page-right twoColRt"><div 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