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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>吉林DCDC電源模塊廠家哪家好,DCDC電源模塊</p><p><span>***更新：</span>2021-01-07 11:21:37</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="fnnr7rf" 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="blrppxl" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ppnhz1z" class="box"><p><p style="text-indent:25px">變壓器是電源管理工作的主要功能部件，其發(fā)熱溫度有限制的電源的主要發(fā)熱源也是一個(gè)變壓器，而鐵芯損耗和銅線損耗是變壓器設(shè)計(jì)工作環(huán)境產(chǎn)生溫升的主要問(wèn)題原因。由于變壓器保護(hù)工作過(guò)程中溫度不斷升高，必然發(fā)展造成鐵芯負(fù)載減弱和線圈老化，當(dāng)其絕緣技術(shù)性能需求下降后，導(dǎo)致抗市電的沖擊分析能力逐漸減弱。這時(shí)若有雷擊或市電浪涌出現(xiàn)時(shí)，在變壓器的初級(jí)階段出現(xiàn)的高反壓會(huì)將變壓器擊穿，使電源失效，同時(shí)我們還有就是高壓串入主設(shè)備，造成主設(shè)備損壞的危險(xiǎn)。紅外熱像儀可以選擇通過(guò)企業(yè)迅速、簡(jiǎn)便的操作，提供更加準(zhǔn)確的變壓器溫度。與電路板組件將被布置在它們的熱盡可能分區(qū)大小和冷卻的程度，吉林DCDC電源模塊廠家哪家好，使用組件的合理安排，能有效地減少印刷電路的溫度上升，使裝置和設(shè)備的故障率降低，吉林DCDC電源模塊廠家哪家好?？梢员惶峁┙o幫助工程師紅外熱圖分析整個(gè)電路板的溫度分布，吉林DCDC電源模塊廠家哪家好，提高了設(shè)計(jì)和應(yīng)用工程師。模塊電源具有抗干擾能力強(qiáng)，自帶保護(hù)功能，便于集成。吉林DCDC電源模塊廠家哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林DCDC電源模塊廠家哪家好,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057044296704/7995413.png"></div><p style="text-indent:25px">標(biāo)準(zhǔn)環(huán)境為規(guī)范電源模塊技術(shù)發(fā)展，提高電源產(chǎn)品質(zhì)量，國(guó)際、國(guó)內(nèi)以及電源行業(yè)制定了多項(xiàng)標(biāo)準(zhǔn)，規(guī)定了模塊電源的技術(shù)要求、實(shí)驗(yàn)方法、檢驗(yàn)規(guī)則和包裝貯存；在鐵路行業(yè)的模塊電源，主要標(biāo)準(zhǔn)是滿足“EN 50155”，在通信行業(yè)的模塊電源，主要標(biāo)準(zhǔn)是滿足“EN 55022”，在醫(yī)療行業(yè)的模塊電源，主要標(biāo)準(zhǔn)是滿足“EN 60601”，在電力行業(yè)的模塊電源，主要標(biāo)準(zhǔn)是滿足“EN 62040”。技術(shù)環(huán)境從模塊電源產(chǎn)品的上業(yè)技術(shù)發(fā)展來(lái)看，隨著電子、納米以及新材料技術(shù)的進(jìn)步，以及設(shè)備和用戶(hù)的需求，模塊電源將會(huì)繼續(xù)向小型化、系統(tǒng)化、片式化、高集成、高精密、高性能、高可靠性、高抗輻射和低功耗等方向發(fā)展。長(zhǎng)寧區(qū)DCDC電源模塊哪家靠譜使電源的溫度值趨近于較小值。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林DCDC電源模塊廠家哪家好,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057001385962/7188392.png"></div><p style="text-indent:25px">高壓電源的供電輸入由兩部分組成，一部分是交流供電，通常由車(chē)載或機(jī)載發(fā)電機(jī)產(chǎn)生。通常為400 Hz或5O Hz，電壓選115 V或220 V左右，中小功率高壓電源選單相供電，大功率高壓電源選三相供電。另一部分是低壓直流供電，主要供高壓電源的控制部分使用，如±5 V、±15 V、±27 V等等．一般電流較小，功率不高。在實(shí)際的系統(tǒng)中，高壓電源從系統(tǒng)獲得供電，交流供電提供功率來(lái)源，低壓直流供電提供控制使用。而系統(tǒng)為接地安全起見(jiàn)，通常將數(shù)字地、模擬地、線纜屏蔽層和機(jī)殼大地相連，甚至有些低壓直流供電的回線與屏蔽層或大地直接相連。高壓電源的PWM控制部分要與高壓反饋電壓作比較，所需低壓直流供電常常需要單獨(dú)供電，為隔離起見(jiàn)其回線不能接地。這樣，系統(tǒng)低壓直流供電在這種情況下不能滿足要求，高壓電源無(wú)法使用系統(tǒng)的該路供電，而必須在高壓電源內(nèi)使用適當(dāng)DC／DC模塊電源生成所需的隔離低壓直流供電電源。</p><p style="text-indent:25px">變頻器電源主要用于交流電機(jī)的變頻調(diào)速,其在電氣傳動(dòng)系統(tǒng)中占據(jù)的地位日趨重要,已獲得巨大的節(jié)能效果。變頻器電源主電路均采用交流-直流-交流方案。工頻電源通過(guò)整流器變成固定的直流電壓,然后由大功率晶體管或IGBT組成的PWM高頻變換器, 將直流電壓逆變成電壓、頻率可變的交流輸出,電源輸出波形近似于正弦波,用于驅(qū)動(dòng)交流異步電動(dòng)機(jī)實(shí)現(xiàn)無(wú)級(jí)調(diào)速。高頻逆變式整流焊機(jī)電源是一種高性能、高效、省材的新型焊機(jī)電源,替代了當(dāng)今焊機(jī)電源的發(fā)展方向。由于IGBT大容量模塊的商用化,這種電源更有著廣闊的應(yīng)用前景。逆變焊機(jī)電源大都采用交流-直流-交流-直流(AC-DC-AC-DC)變換的方法。50Hz交流電經(jīng)全橋整流變成直流,IGBT組成的PWM高頻變換部分將直流電逆變成20kHz的高頻矩形波,經(jīng)高頻變壓器耦合, 整流濾波后成為穩(wěn)定的直流,供電弧使用。一次電源的作用是將單相或三相交流電網(wǎng)變換成標(biāo)稱(chēng)值為48V的直流電源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林DCDC電源模塊廠家哪家好,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393056924431868/869235.png"></div><p style="text-indent:25px">電源模塊是可以直接貼裝在印刷電路板上的電源供應(yīng)器，其特點(diǎn)是可為**集成電路(ASIC)、數(shù)字信號(hào)處理器 (DSP)、微處理器、存儲(chǔ)器、現(xiàn)場(chǎng)可編程門(mén)陣列 (FPGA) 及其他數(shù)字或模擬負(fù)載提供供電。一般來(lái)說(shuō)，這類(lèi)模塊稱(chēng)為負(fù)載點(diǎn) (POL) 電源供應(yīng)系統(tǒng)或使用點(diǎn)電源供應(yīng)系統(tǒng) (PUPS)。由于模塊式結(jié)構(gòu)的優(yōu)點(diǎn)甚多，因此模塊電源普遍用于交換設(shè)備、接入設(shè)備、移動(dòng)通訊、微波通訊以及光傳輸、路由器等通信領(lǐng)域和汽車(chē)電子、航空航天等。近幾年由于數(shù)據(jù)業(yè)務(wù)的飛速發(fā)展和分布式供電系統(tǒng)的不斷推廣,模塊電源的增幅已經(jīng)超出了一次電源。模塊電源具有隔離作用，抗干擾能力強(qiáng)，自帶保護(hù)功能，便于集成。隨著半導(dǎo)體工藝、封裝技術(shù)和高頻軟開(kāi)關(guān)的大量使用,模塊電源功率密度越來(lái)越大,轉(zhuǎn)換效率越來(lái)越高,應(yīng)用也越來(lái)越簡(jiǎn)單。人們?cè)陂_(kāi)關(guān)電源技術(shù)領(lǐng)域是邊開(kāi)發(fā)相關(guān)的電力電子器件，邊開(kāi)發(fā)開(kāi)關(guān)變頻技術(shù)，兩者相互促進(jìn)推動(dòng)著開(kāi)關(guān)電源每年以超過(guò)兩位數(shù)字的增長(zhǎng)率向著輕、小、薄、低噪聲、高可靠、抗干擾的方向發(fā)展。模塊電源具有比分立元件電源靈活、高效、可靠等明顯優(yōu)勢(shì)。長(zhǎng)寧區(qū)DCDC電源模塊哪家靠譜</p><p style="text-indent:25px">DC/DC變換器將一個(gè)固定的直流電壓變換為可變的直流電壓。吉林DCDC電源模塊廠家哪家好</p><p style="text-indent:25px">保證探頭接地盡量短(測(cè)量紋波動(dòng)輒上百mV的主要原因就是接地線太長(zhǎng))，盡量使用探頭自帶的原裝測(cè)試短針。如果沒(méi)有測(cè)試短針，可以拆除探頭的接地線和外殼，露出探頭地殼，自制接地線纏繞在探頭地殼上，保證接地線長(zhǎng)度小于1cm;示波器地懸空，只通過(guò)探頭地與測(cè)試信號(hào)的參考點(diǎn)共地，不要通過(guò)其他方式與測(cè)試設(shè)備共地(這樣會(huì)給紋波測(cè)量引入很大的地噪聲)。支持帶寬限制功能：一般示波器都支持20MHz帶寬限制。為了使接地線盡量短，盡量使用探頭的原裝測(cè)試短針，若無(wú)原裝測(cè)試短針，則須自制短接地線：去除探頭接地線套，用金屬絲自行繞制接地短線，推薦五類(lèi)線中銅絲，強(qiáng)度適中(還是有些偏軟，有更好的請(qǐng)推薦)。其他候選有焊錫絲、刻刀。選擇1X無(wú)衰減檔位，一般無(wú)源探頭在1X檔位時(shí)，其帶寬限制在6MHz/10MHz帶寬，如此在前端可有效濾除高頻噪聲的干擾，減小紋波測(cè)量影響。吉林DCDC電源模塊廠家哪家好</p><p style="text-indent:25px">上海多商電子有限公司是一家1、充電電源：本系列產(chǎn)分鉛酸電池充電，鋰電池充電，電容充電；充電電壓可以調(diào)節(jié)，充電電流也可以調(diào)節(jié)；輸入電壓可以是交流入110VAC，220VAC，380VAC等；也可以是直流如24VDC，48VDC，110VDC， 300VDC等。 2、 DCDC電源模塊：本系列產(chǎn)品功率范圍100-10000W；可以定制特輸入電源，可以根據(jù)客戶(hù)機(jī)箱尺寸設(shè)計(jì)電源尺寸；輸入對(duì)輸出可以是隔離，也可以非隔離；輸出電壓可以調(diào)節(jié)，輸出電流也可以調(diào)節(jié) 可以通過(guò)信號(hào)或協(xié)議來(lái)調(diào)節(jié)電源；電源可以做成恒壓，恒流，恒功率等多種工作模式。 3、 ACDC電源模塊：本系列電源功率范圍100-10000W；輸入電壓可以是110VAC，220VAC，380VAC或其他特殊輸入電壓；輸出電壓可設(shè)定，可調(diào)節(jié)；電源可以定制恒壓，恒流，恒功率多種工作模式。 4、大功率電源模塊：可定制3000-100000的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。上海多商電子擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專(zhuān)業(yè)研發(fā)團(tuán)隊(duì)，以高度的專(zhuān)注和執(zhí)著為客戶(hù)提供充電電源，ACDC電源模塊，DCDC電源模塊，大功率電源模塊。上海多商電子致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶(hù)產(chǎn)品上的貼心，為用戶(hù)帶來(lái)良好體驗(yàn)。上海多商電子創(chuàng)始人郭靖，始終關(guān)注客戶(hù)，創(chuàng)新科技，竭誠(chéng)為客戶(hù)提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2743881.html</p></div></div></div></div></div><div id="f5xlnbh" class="page-right twoColRt"><div id="ht73j19" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lfxxvv7" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" 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