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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fzbiamd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057772411597/5791325.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2riubne" 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>金山區(qū)ACDC電源模塊供應(yīng)公司,ACDC電源模塊</p><p><span>***更新：</span>2020-12-28 09:20:12</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="udah33n" 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="eyfrd2k" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mw3q3wd" class="box"><p><p style="text-indent:25px">偏置電源在電源中很重要。在電源內(nèi)部，需要偏置電源給IC加電。在電源外部，可能需要偏置電源給系統(tǒng)中的MCU和/或其它局部電源加電。很多低電壓IC都將偏置電源集成到該IC內(nèi)部。不過，對于acdc模塊電源而言事情會變得更加復(fù)雜，因為現(xiàn)在需要處理高很多的輸入電壓。acdc應(yīng)用中實現(xiàn)偏置電源的3種選項：線性、降壓轉(zhuǎn)換器或反激式轉(zhuǎn)換器。線性偏置電源，BJT線性電路可提供一款組件數(shù)量至少的簡單偏置電源解決方案。不過，使用該方案的主要缺點是效率低。反激式轉(zhuǎn)換器偏置電源是常用的偏置電源解決方案，不僅提供安全隔離，而且還能提供多個偏置輸出。由于采用一次側(cè)穩(wěn)壓 (PSR) 技術(shù)，因此光耦合器和補(bǔ)償電路可從反激式偏置電源中移除，金山區(qū)ACDC電源模塊供應(yīng)公司，同時還可保持 5% 的輸出穩(wěn)壓。降壓偏置電源，在電子儀表計量等特定應(yīng)用中，金山區(qū)ACDC電源模塊供應(yīng)公司，無需隔離，而且反激式轉(zhuǎn)換器中的定制變壓器對于成本敏感型市場來說太貴。在這種情況下，降壓轉(zhuǎn)換器是實現(xiàn)低成本偏置電源解決方案的更好選項，因為使用的是標(biāo)準(zhǔn)電感器。此外，使用 PSR 控制器(UCC28700 系列)還可實現(xiàn)快速負(fù)載瞬態(tài)響應(yīng)，因為 PSR 控制器具有逐周期電壓傳感特性。對于需要低輸出電壓(9V 或更低)偏置電源的應(yīng)用，金山區(qū)ACDC電源模塊供應(yīng)公司，通道 MOSFET 降壓轉(zhuǎn)換器是反激式偏置電源的完美替代方案。ac dc電源模塊輸出功率為20W，具有極低的空載損耗。金山區(qū)ACDC電源模塊供應(yīng)公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金山區(qū)ACDC電源模塊供應(yīng)公司,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057772411597/5791325.png"></div><p style="text-indent:25px">當(dāng)啟動后，熱敏電阻要過一會兒才到達(dá)其工作狀態(tài)電阻值，如果這時的輸入電壓在電源可以工作的小值附近，剛啟動時由于熱敏電阻阻值還較大，它的壓降較大，電源就可能工作在打嗝狀態(tài)。另外，當(dāng)開關(guān)電源關(guān)掉后，熱敏電阻需要一段冷卻時間來將阻值升高到常溫態(tài)以備下一次啟動，冷卻時間根據(jù)器件、安裝方式、環(huán)境溫度的不同而不同，一般為1分鐘。如果開關(guān)電源關(guān)掉后開啟，熱敏電阻還沒有變冷，這時對沖擊電流失去限制作用，這就是在使用這種方法控制沖擊電流的電源不允許在關(guān)掉后開啟的原因。有源沖擊電流限制法。對于大功率開關(guān)電源，沖擊電流限制器件在正常工作時應(yīng)該短路，這樣可以減小沖擊電流限制器件的功耗。在這種可控硅啟動電路中，很容易通過開關(guān)電源主變壓器上的一個線圈來給可控硅供電。由開關(guān)電源的緩啟動來提供可控硅的延遲啟動，這樣在電源啟動前就可以通過電阻R1將輸入電容充滿電。奉賢區(qū)ACDC電源模塊廠家有哪些ac dc電源模塊是為客戶提供一款較小體積模塊式開關(guān)電源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金山區(qū)ACDC電源模塊供應(yīng)公司,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057688924086/7719694.png"></div><p style="text-indent:25px"> AC-DC開關(guān)電源又被稱為一次電源，是開關(guān)電源的其中一類，AC-DC開關(guān)電源是開關(guān)電源的其中一類，其原理是取得能量后經(jīng)過高壓整流濾波得到一個直流高壓，以供DC-DC變換器在輸出端獲得一個或幾個穩(wěn)定的直流電壓。AC-DC開關(guān)電源的掉電保持時間是其重要的技術(shù)參數(shù)之一，ACDC開關(guān)電源原理，AC輸入經(jīng)過整流濾波后，變成一個直流電壓(有一定的紋波電壓)，再通過DCDC變換器轉(zhuǎn)換成我們所需要的電壓輸出?？刂齐娐房筛鶕?jù)輸入電壓和輸出負(fù)載來調(diào)整占空比(PWM模式)以實現(xiàn)穩(wěn)定的電壓輸出。在AC輸入掉電后，由輸入濾波電容存儲的能量給輸出供電，在這個過程中，濾波電容電壓逐漸下降，控制電路通過調(diào)整占空比依然可以實現(xiàn)額定的輸出電壓，直到電容電壓下降到控制電路能調(diào)整的范圍之外時，輸出電壓開始下降。</p><p style="text-indent:25px">由于新能源汽車的普及，越來越多汽車使用電力啟動，因此對汽車充電樁要求很大，必須高效率，同時也應(yīng)具備快充效果。目前市場上有一些電源模塊在超寬壓輸入的應(yīng)用中，低輸入電壓時啟動能力不足，反之則損耗大，電源模塊在汽車充電樁應(yīng)用卻不容有過失。為了解決這種困境利用新技術(shù)研發(fā)出HAW50_S-H2系列小中大功率acdc模塊電源，每個電源模塊兼5V、12V、15V、24V等多種標(biāo)稱輸入電壓。系列產(chǎn)品擁有90~305VAC寬輸入電壓范圍，是一款高性價比的**率電源模塊產(chǎn)品，是專門為汽車充電樁所設(shè)計應(yīng)用的產(chǎn)品，具備如下特點：寬輸入電壓范圍：90~305VAC，空載功耗低至0.1W，隔離電壓3750VAC，工作溫度范圍：-40℃～+65℃，輸出過載，過流，短路保護(hù)，過溫保護(hù)，自動恢復(fù)，臥式 DIP封裝，外殼全封閉塑料外殼，符合UL94V-0級，低紋波/噪聲(20MH帶寬):50mVp-p(typ)，隔離穩(wěn)壓單路、雙路共地、雙路隔離。輸出的**率acdc電源模塊HAW50-220S12H2是HAW50_S-H2系列中的一款產(chǎn)品，目前市場上采購這款產(chǎn)品應(yīng)用于智能電力、汽車充電樁、工業(yè)等方面較普遍，且其能替代同參數(shù)輸出入電壓、功率范圍的電源模塊應(yīng)用在電源中，滿足安全電源需求。集成電路的質(zhì)量直接影響電源的參數(shù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金山區(qū)ACDC電源模塊供應(yīng)公司,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057649831836/6146149.png"></div><p style="text-indent:25px">模塊電源是一種可直接安裝在印刷電路板上的電源。由于模塊結(jié)構(gòu)的許多優(yōu)點，模塊電源普遍應(yīng)用于開關(guān)設(shè)備、接入設(shè)備、移動通信、微波通信、光傳輸、路由器和其他通信領(lǐng)域、汽車電子、航空航天等領(lǐng)域。模塊電源的優(yōu)點：設(shè)計簡單，只需一個電源模塊和少量離散元件即可獲得電源。縮短開發(fā)周期。模塊電源一般配備多種輸入和輸出選項。用戶還可以重復(fù)疊加或交叉疊加，形成塊組合電源，實現(xiàn)多輸入多輸出，有效縮短了樣機(jī)的開發(fā)時間。靈活的改變。如果產(chǎn)品設(shè)計需要改變，只需要轉(zhuǎn)換或并行另一個合適的電源模塊。技術(shù)要求低。模塊電源一般配備標(biāo)準(zhǔn)化前端、高度集成的電源模塊和其他組件，因此更容易設(shè)計電源。模塊電源外殼具有散熱器、散熱器和外殼三位一體的結(jié)構(gòu)，實現(xiàn)了模塊電源的傳導(dǎo)冷卻方式，使電源的溫度值接近較小值，同時給出了模塊電源的金玉臺封裝。AC-DC電源模塊具有體積較小、功率密度較高等特點。湖北ACDC電源模塊廠家有哪些</p><p style="text-indent:25px">acdc電源模塊是集成了眾多的電子線路以及元器件的精密電子產(chǎn)品。金山區(qū)ACDC電源模塊供應(yīng)公司</p><p style="text-indent:25px">電路設(shè)計原理和技術(shù)只有從專業(yè)的角度才能區(qū)分電路的原理和電路的質(zhì)量。目前，電源模塊可分為裸板和填充密封兩種。裸板按直觀的方式可分為兩類，如電子元器件布局合理、有序、大方、有序、焊點光亮、筆直。然而，填料和密封模塊不能看到內(nèi)部情況，但由于它沒有暴露，所以在安全性和性能指標(biāo)方面要好得多。焊接過程可以包括手工焊接和波峰焊接。機(jī)械化波峰焊的焊接質(zhì)量優(yōu)于手工焊接。芯片的元器件，電源的重要是集成電路，它就像電源的大腦。集成電路的質(zhì)量直接影響電源的參數(shù)。變壓器部件確定電源功率、溫度電阻等是變壓器。變壓器負(fù)責(zé)交直流電力的完成，能量過載將使轟炸機(jī)飽和。金山區(qū)ACDC電源模塊供應(yīng)公司</p><p style="text-indent:25px">上海多商電子有限公司致力于電工電氣，是一家生產(chǎn)型的公司。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。公司從事電工電氣多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。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>文章來源地址: http://www.cdcfah.com/cp/2600542.html</p></div></div></div></div></div><div id="h7dvm8z" class="page-right twoColRt"><div id="2del3gi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ujqnz7r" class="recomPic likePro"><a 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