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當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_dianyuan/">電源</a>?<a href="http://www.cdcfah.com/cp/third-dianyuan_dyspq/">電源適配器</a>?東莞香薰機(jī)電源廠家歡迎咨詢深圳市新賽科技供應(yīng)</p><div id="83qvfrt" class="leftbox clearfix"><h1>東莞香薰機(jī)電源廠家歡迎咨詢深圳市新賽科技供應(yīng)</h1><div id="v8vrl3t" class="proBig"><div id="uicmb4z" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/szxskj/637142795380595703/6258875.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rq7tqpl" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/szxskj/637142795380595703/6258875.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="az37ofr" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>東莞香薰機(jī)電源廠家</p><p><span>***更新：</span>2020-06-02 14:18:29</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="fj2elar" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市新賽科技有限公司</a></p><p><span>聯(lián)系人：</span>汪經(jīng)理</p><p><span>郵箱: </span>chentianyu2007222@126.com</p><p><span>電話: </span>13760313517</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-2708180</p><p><span>地址: </span>松崗街道東方社區(qū)田洋二路1號(hào)B801B區(qū)</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="mavcwdh" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3lvlvcj" class="box"><p><p> 我們經(jīng)常會(huì)收到一個(gè)關(guān)于如何找替代電源適配器的問(wèn)題，其中大多是關(guān)于AC-DC電源適配器的，那么這里面有沒(méi)有什么竅門呢？ </p> <p> 我們首先會(huì)問(wèn)客戶是否有一個(gè)零件編號(hào)或者型號(hào), 又或者問(wèn)他們有沒(méi)有電壓和電流上的需求。大多數(shù)電源適配器的標(biāo)簽上是可以找到以下信息的： </p> <p> 零件編號(hào)/ 型號(hào)、輸入、輸出 </p> <p> <br /> </p> <p> 需要注意的一點(diǎn)是, 在這個(gè)標(biāo)簽上有一個(gè)正極中心標(biāo)識(shí)符, 它表示的是中心線接正極。雖然這是個(gè)常見的配置, 但是這一點(diǎn)比較重要。如果你用一個(gè)正極中心的適配器替代一個(gè)負(fù)極中心的適配器,可能會(huì)損壞電路。 </p> <p> 可是有些時(shí)候, 從這個(gè)適配器上的安裝類型, 我們未必能夠找到一樣類型的適配器。此時(shí)，東莞香薰機(jī)電源廠家, 我們需要看看一些別的信息，東莞香薰機(jī)電源廠家。首先, 根據(jù)上面的信息, 知道我們需要12VDC的輸出, 因此選擇了12V，東莞香薰機(jī)電源廠家。 </p> <p> 下一步你需要選擇電源的輸出電流。模板中輸出電流為1A,但是為了有更多的選擇, </p> <p> 所以在這里建議選擇所有輸出電流大于等于1A的。 </p> <p> 下一步你需要選擇電源的輸出電流。模板中輸出電流為1A,但是為了有更多的選擇, </p> <p> 所以在這里建議選擇所有輸出電流大于等于1A的。 </p> <p> 以上就是選擇AC-DC電源適配器的技巧，希望能能夠幫助到大家。 </p> <p> <br /> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞香薰機(jī)電源廠家" src="http://tyunfile.71360.com/UploadFile/szxskj/637142795380595703/6258875.jpg"></div><p> AC/DC開關(guān)電源適配器芯片（或稱模塊），只要配合一些阻容元件和一個(gè)開關(guān)變壓器，就可以做成一個(gè)基本的開關(guān)電源適配器。 </p> <p> 普通半橋開關(guān)電源適配器的主要工作原理就是上橋和下橋的開關(guān)管（頻率高時(shí)開關(guān)管為VMOS）輪流導(dǎo)通，首先電流通過(guò)上橋開關(guān)管流入，利用電感線圈的存儲(chǔ)功能，將電能集聚在線圈中，***關(guān)閉上橋開關(guān)管，打開下橋的開關(guān)管，電感線圈和電容持續(xù)給外部供電。 </p> <p> 然后又關(guān)閉下橋開關(guān)管，再打開上橋讓電流進(jìn)入，就這樣重復(fù)進(jìn)行。 </p> <p> 因?yàn)橐喠鏖_關(guān)兩開關(guān)管，所以稱為開關(guān)電源適配器。 </p> <p> 作為AC-DC類電源適配器中的開關(guān)電源IC。AC/DC開關(guān)電源適配器的主要優(yōu)點(diǎn)： </p> <p> a:體積小、重量輕（體積和重量只有線性電源適配器的20%～30%）、 </p> <p> b:效率高（一般為60%～70%，而線性電源適配器只有30%～40%）、 </p> <p> 自身抗干擾性強(qiáng)、輸出電壓范圍寬、模塊化。 </p> <p> 常用的低壓AC開關(guān)電源適配器將220VAC電經(jīng)過(guò)EMI濾波器后直接整流成300V左右的AC電壓，通過(guò)電路控制開關(guān)管進(jìn)行高速的導(dǎo)通與截止再轉(zhuǎn)化為高頻率的AC電提供給變壓器進(jìn)行變壓，從而產(chǎn)生所需要的一組或多組電壓，而后再整流成所需要電壓的AC電。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞香薰機(jī)電源廠家" src="http://tyunfile.71360.com/UploadFile/szxskj/637142795370175781/7875421.jpg"></div><p> 電源適配器應(yīng)用***，那么電源適配器的質(zhì)量問(wèn)題是我們關(guān)注一個(gè)問(wèn)題，實(shí)際上電源適配器中存在著許多的質(zhì)量問(wèn)題。 </p> <p> 1、產(chǎn)品標(biāo)識(shí)不完整或不規(guī)范。 </p> <p> 標(biāo)簽應(yīng)包含指導(dǎo)用戶正確安裝和使用的重要信息。正確貼標(biāo)產(chǎn)品是確保用戶個(gè)人和財(cái)產(chǎn)安全的基本措施之一。標(biāo)記需要耐用性和引人注目。正常使用后，標(biāo)記不應(yīng)脫落，內(nèi)容應(yīng)清潔和區(qū)分。這方面常見問(wèn)題是沒(méi)有中文標(biāo)識(shí)，沒(méi)有工廠名稱或商標(biāo)，沒(méi)有型號(hào)代碼或型號(hào)規(guī)格等。則可能是假冒偽劣產(chǎn)品。 </p> <p> 2、正常工作條件下的加熱不符合要求。 </p> <p> 電源適配器的功能是改變電壓。在電壓轉(zhuǎn)換過(guò)程中，由于損耗，需要消耗一部分電能。在電能轉(zhuǎn)換成熱能后，部分熱能通過(guò)輻射，對(duì)流和傳導(dǎo)傳遞到周圍環(huán)境。熱能的另一部分自身被吸收，使電源適配器的溫度變暖。所以當(dāng)周邊的環(huán)境溫度過(guò)高時(shí)，我們應(yīng)該停止電源適配器的使用。 </p> <p> 3、短路和過(guò)載，存在隱患安全隱患。 </p> <p> 在輸出短路，電容器或二極管短路的情況下，電源適配器的內(nèi)部損耗急劇增加，導(dǎo)致每個(gè)部件的溫升。電子電路的設(shè)計(jì)和應(yīng)用應(yīng)確保在異常工作和故障條件下，產(chǎn)品各部分的溫升不能超過(guò)規(guī)定的要求，否則短路的后果不堪設(shè)想。甚至?xí)?lái)火災(zāi)。 </p> <p> <br /> 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