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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057754697878/9082335.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8szwhj2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057754697878/9082335.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3npcjqx" 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)品關鍵詞：</span>河北ACDC電源模塊價格便宜嗎,ACDC電源模塊</p><p><span>***更新：</span>2021-01-28 13:21:06</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sh89heq" 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: </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="gqfwykh" class="page-proshow02"><p class="title">詳細說明</p><div id="7da7u82" class="box"><p><p style="text-indent:25px"> 模塊內(nèi)部器件的工作溫度的高低直接影響模塊電源的壽命，器件溫度越低模塊壽命越長。在一定的工作條件下，模塊電源的損耗是一定的，但是可以通過改善模塊電源的散熱條件來降低其溫升，從而有效延長其使用壽命，河北ACDC電源模塊價格便宜嗎。50W以上的模塊電源必須安裝散熱器，散熱器的表面積越大越有利于散熱，且散熱器的安裝方向應盡量有利于空氣的自然對流，河北ACDC電源模塊價格便宜嗎，功率在150W以上除安裝散熱器以外還可以加裝扇強制風冷。此外在環(huán)境溫度較高或空氣流通條件較差的地方模塊須降額使用以減小功耗從而降低溫升，河北ACDC電源模塊價格便宜嗎，延長使用壽命。acdc模塊電源的效率很高、體積小、占地面積也較小。河北ACDC電源模塊價格便宜嗎</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北ACDC電源模塊價格便宜嗎,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057754697878/9082335.png"></div><p style="text-indent:25px">ACDC電源模塊，靈敏的設施和解耦路徑，稱之為電磁干擾的基本要素。針對開關模塊電源，電流或電壓，劇烈變化會造成噪音，因此大功率和高頻率電子元件是EMI噪聲的來源。具體而言，其起源是：外界藕合干撓（主要在輸入和輸出處產(chǎn)生）;開關;變壓器;二極管，儲能電感;PCB布局和布線不合理造成環(huán)路干擾。模塊電源線性穩(wěn)壓電源的話發(fā)燙還是很嚴重的，針對線性穩(wěn)壓電源的工作原理關鍵是根據(jù)控制調(diào)整管RW更改了輸出電壓的大小，因此調(diào)節(jié)管相等于1個內(nèi)阻，因此在直流電經(jīng)過電阻的時會就會發(fā)燙，從而導致效率也不一定高，這些時候的我們能夠運用增加散熱器片，實施風冷，導熱材料處理，或者是改成開關電源都可以；開關電源原理的負荷阻抗較為大，這個時候的電源針對負載的輸出交流電也就較為小，而且一些電源電路之中是不允許電源的輕載，否則就會使得電源電路輸出的直流工作電壓升高不少，從而造成對電源電路的損壞，如果遇到輸出負載太輕的話我們可以在輸出端并聯(lián)一個假負載電阻；由于環(huán)境的溫度過高或者是因為散熱不良也會使得電源模塊發(fā)熱，所以我們在使用電源模塊的時候一定要考慮它的溫度等級以及實際需要的工作溫度范圍，根據(jù)負載功率以及實際的環(huán)境溫度來進行降額設計。河北ACDC電源模塊價格便宜嗎高壓模塊電源的早期供電容量通常是直流模塊電源容器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北ACDC電源模塊價格便宜嗎,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057744520565/9625657.png"></div><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計應用的產(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，過溫保護，自動恢復，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用在電源中，滿足安全電源需求。</p><p style="text-indent:25px">ACDC和DCDC電源模板的特點：設計簡單，只需一個電源模塊，配上少量分立元件，即可獲得電源?？s短開發(fā)周期，模塊電源一般備有多種輸入、輸出選擇。用戶也可以重復迭加或交叉迭加，構(gòu)成積木式組合電源，實現(xiàn)多路輸入、輸出，有效削減了樣機開發(fā)時間。變更靈活，產(chǎn)品設計如需更改，只需轉(zhuǎn)換或并聯(lián)另一合適電源模塊即可。技術(shù)要求，ACDC和DCDC模塊電源一般配備標準化前端、高集成電源模塊和其他元件，因此令電源設計更簡單。開關電源模塊外殼有集熱沉、散熱器和外殼三位一體的結(jié)構(gòu)形式，實現(xiàn)了DCDC電源模電源的傳導冷卻方式，使電源的溫度值趨近于小值。同時，又賦予了模塊電源金玉其表的包裝。質(zhì)優(yōu)可靠，模塊電源一般均采用全自動化生產(chǎn)，并配以高科技生產(chǎn)技術(shù)，因此品質(zhì)穩(wěn)定、可靠。開關電源模塊可普遍應用于航空航天、機車艦船、發(fā)電配電、郵電通信、冶金礦山、自動控制、家用電器、儀器儀表和科研實驗等社會生產(chǎn)和生活的各個領域，尤其是在高可靠和高技術(shù)領域發(fā)揮著重要作用。ACDC電源模塊容量的容量和電感是成正比的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北ACDC電源模塊價格便宜嗎,ACDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057932892119/7157202.png"></div><p style="text-indent:25px">AC/DC電源模塊的沖擊電流限制方法：串連電阻法對于小功率開關電源，可以用串連電阻法。如果電阻選得大，沖擊電流就小，但在電阻上的功耗就大，所以選擇折衷的電阻值，使沖擊電流和電阻上的功耗都在允許的范圍之內(nèi)。串連在電路上的電阻能承受在開機時的高電壓和大電流，大額定電流的電阻在這種應用中比較適合，常用的為線繞電阻，但在高濕度的環(huán)境下，則不要用線繞電阻。因線繞電阻在高濕度環(huán)境下，瞬態(tài)熱應力和繞線的膨脹會降低保護層的作用，會因濕氣入侵而引起電阻損壞。熱敏電阻法，在小功率開關電源中，負溫度系數(shù)熱敏電阻在開關電源啟動時，NTC的電阻值很大，可限制沖擊電流，隨著NTC的自身發(fā)熱，其電阻值變小，使其在工作狀態(tài)時的功耗減小。集成電路的質(zhì)量直接影響電源的參數(shù)。河北ACDC電源模塊價格便宜嗎</p><p style="text-indent:25px">電源的重要是集成電路，它就像電源的大腦。河北ACDC電源模塊價格便宜嗎</p><p style="text-indent:25px">電源模塊沒有工作或進入保護狀態(tài)。首先，有必要測量功率控制芯片的啟動腳是否有啟動電壓。如果沒有啟動電壓或啟動電壓太低，必須檢查起動電阻和啟動腳的外部部件是否泄漏。此時，如果電源控制芯片正常，則可以通過上述檢查快速檢測故障。如果有啟動電壓，那么控制芯片的輸出在啟動時刻是否有高、低電平跳變，如果沒有跳變，說明控制芯片不好，**電路振蕩元件或保護電路出現(xiàn)問題，可以更換控制芯片，然后檢查**元件；如果有跳變，開關管一般是壞的或損壞的。主要檢查300 V、整流橋二極管和開關管等部分的大濾波電容，抗干擾電路問題也會導致安全燃燒、發(fā)黑。應注意的是，由于開關管的故障，電流檢測電阻和功率控制芯片將被燒毀。負溫度系數(shù)熱敏電阻也容易被保險燒毀。河北ACDC電源模塊價格便宜嗎</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/3051626.html</p></div></div></div></div></div><div id="8mo3fc3" class="page-right 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