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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>楊浦區(qū)充電電源廠家定制,充電電源</p><p><span>***更新：</span>2021-01-30 06:14:44</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nwifmtv" 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="mamj2ub" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3yfczl7" class="box"><p><p style="text-indent:25px">超級電容以前主要用于大功率電源和大型工業(yè)與消費(fèi)類電源設(shè)備，如今在各種尺寸的產(chǎn)品、特別是便攜式設(shè)備中也找到了用武之地。超級電容以高達(dá)數(shù)千法拉的電容值和快速充放電速率而聞名于世。由于能夠長時(shí)間存儲大量的電能，超級電容表現(xiàn)得更像是電池而不是一個(gè)標(biāo)準(zhǔn)電容。事實(shí)上，隨著技術(shù)的進(jìn)步，它們將替代眾多產(chǎn)品中的可充電電池，從計(jì)算機(jī)，楊浦區(qū)充電電源廠家定制、數(shù)碼相機(jī)、手機(jī)到其它手持設(shè)備。簡單地說，超級電容是一種非常大的極化電解質(zhì)電容，楊浦區(qū)充電電源廠家定制。這里的指的是容量，而不是它們的物理尺寸，楊浦區(qū)充電電源廠家定制。的確，對于普通的電解電容來說，電容值和/或電壓值越大，整個(gè)封裝也越大。電解電容通常提供微法拉數(shù)量級的電容值，從約0.1uF到約1F，其電壓標(biāo)稱值高可達(dá)1kVdc。一般來說，額定電壓越高，電容值就越小，而電容值越大，封裝也就越大，而且工作電壓也可能會降低。開關(guān)電源的損耗大部分來自開關(guān)器件(MOSFET 和二極管)，另外小部分損耗來自電感和電容。楊浦區(qū)充電電源廠家定制</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="楊浦區(qū)充電電源廠家定制,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393062458887740/3109713.png"></div><p style="text-indent:25px">充電電源模塊選擇一種封裝，系統(tǒng)由于功能升級對電源功率的要求提高,電源模塊封裝依然不變,系統(tǒng)線路板設(shè)計(jì)可以不必改動(dòng),從而簡化了產(chǎn)品升級更新?lián)Q代，節(jié)約時(shí)間。溫度范圍與降額使用一般廠家的電源模塊都有幾個(gè)溫度范圍產(chǎn)品可供選用：商品級、工業(yè)級等，在選擇模塊電源時(shí)一定要考慮實(shí)際需要的工作溫度范圍，因?yàn)闇囟鹊燃壊煌牧虾椭圃旃に嚥煌瑑r(jià)格就相差很大，選擇不當(dāng)還會影響使用，因此不得不慎重考慮?？梢?有兩種選擇方法：一是根據(jù)使用功率和封裝形式選擇，如果在體積（封裝形式）一定的條件下實(shí)際使用功率已經(jīng)接近額定功率，那么模塊標(biāo)稱的溫度范圍就必須嚴(yán)格滿足實(shí)際需要甚至略有裕量。二是根據(jù)溫度范圍來選，如果由于成本考慮選擇了較小溫度范圍的產(chǎn)品，但有時(shí)也有溫度逼近極限的情況，怎么辦呢？降額使用。楊浦區(qū)充電電源廠家定制電源模塊整合可簡化并加速系統(tǒng)的設(shè)計(jì)，明顯減少電源管理部分所占的電路板面積。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="楊浦區(qū)充電電源廠家定制,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393063899544830/1265616.png"></div><p style="text-indent:25px">電源市場風(fēng)起云涌，競爭日趨激烈，對于電子工程師，電源似乎已成一個(gè)隨處抓一模塊都可以滿足要求的時(shí)代。說說電源模塊那些事兒。電源模塊選型沒那么簡單，它需要考慮很多問題。電源模塊的拓?fù)浣Y(jié)構(gòu)有多種，反激、正激、推挽、半橋、全橋多種，每種因?yàn)槠湓淼牟煌?，也表現(xiàn)為在某些特性指標(biāo)方面的優(yōu)越性。反激電源在開關(guān)的一個(gè)周期中，充電的時(shí)段沒有放電，就是因?yàn)檫@個(gè)特性，其時(shí)間響應(yīng)特性、紋波特性就很難做到很好，雖然可以通過大的儲能電容協(xié)助解決一點(diǎn)，但原理性缺陷終歸是硬傷，智力不足是可以通過勤勞來彌補(bǔ)，但補(bǔ)來補(bǔ)去遇到臨界難題的時(shí)候終歸跨不過某個(gè)坎兒。漏感也大等等問題，但其優(yōu)點(diǎn)是電路簡單，成本低，體積小，不必加磁復(fù)位繞組，而且輸入電壓范圍比較寬。也正因?yàn)榇耍庞辛似湔伎傠娫词袌?成以上的份額。</p><p style="text-indent:25px">電源在電子系統(tǒng)中，猶如人的心臟一樣，十分重要。選用合適的電源模塊，可省去電源設(shè)計(jì)、調(diào)試、生產(chǎn)、測試、老化、物料管理等諸多方面的麻煩，縮短產(chǎn)品開發(fā)周期，提高產(chǎn)品的整體可靠性和可維護(hù)性。那么該如何選擇呢？電源模塊按照輸入主要分為兩大類，AC和DC，當(dāng)輸入為交流電是選擇AC-DC電源模塊，交流輸入一般常見的有110VAC和220VAC兩種；當(dāng)輸入為直流時(shí)，選擇DC-DC電源模塊。隔離，可切斷浪涌等干擾信號的傳播路徑，其優(yōu)勢如：保護(hù)人員、負(fù)載設(shè)備免遭輸入端的瞬態(tài)高壓損害；去除隔離電路之間的接地環(huán)路以及改善抗干擾能力；在系統(tǒng)中輕松完成輸出接線，而不與主接地發(fā)生問題。電源模塊在預(yù)期有效時(shí)間內(nèi)失效的主要原因是外部故障條件下?lián)p壞。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="楊浦區(qū)充電電源廠家定制,充電電源" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393063876175375/9011245.png"></div><p style="text-indent:25px">隨著科學(xué)技術(shù)的發(fā)展,電力電子設(shè)備與人們的工作、生活的關(guān)系日益密切,而電子設(shè)備都離不開可靠的電源,因此直流開關(guān)電源開始發(fā)揮著越來越重要的作用,并相繼進(jìn)入各種電子、電器設(shè)備領(lǐng)域,程控交換機(jī)、通訊、電子檢測設(shè)備電源、控制設(shè)備電源等都已地使用了直流開關(guān)電源。同時(shí)隨著許多高新技術(shù),包括高頻開關(guān)技術(shù)、軟開關(guān)技術(shù)、功率因數(shù)校正技術(shù)、同步整流技術(shù)、智能化技術(shù)、表面安裝技術(shù)等技術(shù)的發(fā)展,開關(guān)電源技術(shù)在不斷地創(chuàng)新,這為直流開關(guān)電源提供了好多的發(fā)展空間。開關(guān)電源是利用現(xiàn)代電力電子技術(shù)，控制開關(guān)管開通和關(guān)斷的時(shí)間比率，維持穩(wěn)定輸出電壓的一種電源。楊浦區(qū)充電電源廠家定制</p><p style="text-indent:25px">充電電源模塊具有模塊化設(shè)計(jì)、防潮、抗震動(dòng)、一致性好、應(yīng)用簡單，可靠性高等優(yōu)點(diǎn)。楊浦區(qū)充電電源廠家定制</p><p style="text-indent:25px">充電電源模塊是一種負(fù)反饋的穩(wěn)壓系統(tǒng)，其性能指標(biāo)分為靜態(tài)指標(biāo)和動(dòng)態(tài)指標(biāo)。靜態(tài)指標(biāo)輸出電壓精度：衡量模塊的實(shí)際輸出電壓與標(biāo)稱的輸出電壓的差異性。電壓調(diào)整率(源效應(yīng))：衡量模塊在不同輸入電壓的情況下輸出電壓的變化情況。電流調(diào)整率(負(fù)載效應(yīng))：衡量模塊在不同輸出電流的情況下輸出電壓的變化情況。交叉調(diào)整率：衡量模塊某一路的輸出功率的變化對其他路輸出電壓的影響情況，*對于雙路或多路模塊。溫度漂移：衡量模塊在不同環(huán)境溫度的情況下輸出電壓的變化情況。輸出電壓紋波：衡量模塊的輸出直流電壓上的交流電壓成分的大小。效率：衡量電源模塊在實(shí)現(xiàn)電壓轉(zhuǎn)換和功率傳輸?shù)耐瑫r(shí)自身的損耗情況。動(dòng)態(tài)指標(biāo)啟動(dòng)過沖和啟動(dòng)時(shí)間：衡量電源模塊在加電啟動(dòng)時(shí)輸出電壓的建立過程或穩(wěn)定過程的情況。負(fù)載階躍響應(yīng)：衡量模塊在負(fù)載階躍變化的情況下輸出電壓的變化情況。衡量的指標(biāo)主要有過沖或跌落的幅值以及恢復(fù)時(shí)間的長短。楊浦區(qū)充電電源廠家定制</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3077144.html</p></div></div></div></div></div><div id="nb2gr88" class="page-right twoColRt"><div id="3vh3b22" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3wdup83" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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