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首頁 > 技術支持 > 引起電源模塊發熱的四大原因

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引起電源模塊發熱的四大原因
更新時間:2022-04-11   點擊次數:1970次

       供(gong)電(dian)(dian)功(gong)能(neng)(neng)(neng)(neng)功(gong)能(neng)(neng)(neng)(neng)電(dian)(dian)源功(gong)能(neng)(neng)(neng)(neng)功(gong)能(neng)(neng)(neng)(neng)在端電(dian)(dian)壓轉(zhuan)為歷程中(zhong)含人體脂肪損耗費,會(hui)(hui)造(zao)成能(neng)(neng)(neng)(neng)量會(hui)(hui)造(zao)成功(gong)能(neng)(neng)(neng)(neng)功(gong)能(neng)(neng)(neng)(neng)電(dian)(dian)源功(gong)能(neng)(neng)(neng)(neng)功(gong)能(neng)(neng)(neng)(neng)發燙,縮減供(gong)電(dian)(dian)的轉(zhuan)為有效率,不良影(ying)響供(gong)電(dian)(dian)功(gong)能(neng)(neng)(neng)(neng)功(gong)能(neng)(neng)(neng)(neng)電(dian)(dian)源功(gong)能(neng)(neng)(neng)(neng)功(gong)能(neng)(neng)(neng)(neng)正(zheng)常的事業(ye),然而或許會(hui)(hui) 危害附進其他元器件的安(an)全性(xing)能(neng)(neng)(neng)(neng),本身狀(zhuang)態(tai)必(bi)須要接(jie)著巡查。但什么呢(ni)狀(zhuang)態(tai)中(zhong)會(hui)(hui)容(rong)易造(zao)成供(gong)電(dian)(dian)電(dian)(dian)源模塊(kuai)發高燒重要呢(ni)?主要理由(you)如表圖示:

一、使用的是線性(xing)電源(yuan) 

在調節器校準管RW增加打出的電壓的長寬。隨著進行調節管相對于于一電容,交流電路經電容的時候發 熱(re)(re),導致效率不高。為以防止電(dian)源功(gong)能(neng)模(mo)塊(kuai)功(gong)能(neng)模(mo)塊(kuai)起熱(re)(re)較為嚴重(zhong)的,可運用以內方式(shi):減少熱(re)(re)量(liang)散發片(pian)、實施(shi)運行風冷、傳(chuan)熱(re)(re)性原材料搞(gao)定(傳(chuan)熱(re)(re)性硅(gui)脂(zhi)、傳(chuan)熱(re)(re)性灌上膠)、使用轉換開關 電(dian)壓。

二、負載太小 

外接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)適(shi)配(pei)(pei)器(qi)輕(qing)(qing)載,即外接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)適(shi)配(pei)(pei)器(qi)線(xian)(xian)路(lu)系統過載電(dian)(dian)(dian)(dian)(dian)(dian)阻電(dian)(dian)(dian)(dian)(dian)(dian)阻值十分大(da),等級劃分外接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)適(shi)配(pei)(pei)器(qi)對過載電(dian)(dian)(dian)(dian)(dian)(dian)阻的(de)(de)讀取電(dian)(dian)(dian)(dian)(dian)(dian)壓十分小。有一點(dian)外接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)適(shi)配(pei)(pei)器(qi)線(xian)(xian)路(lu)系統中不合法外接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)適(shi)配(pei)(pei)器(qi)的(de)(de)輕(qing)(qing)載,否(fou)則的(de)(de)話會(hui)使電(dian)(dian)(dian)(dian)(dian)(dian) 源(yuan)主(zhu)(zhu)(zhu)機(ji)(ji)開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)路(lu)輸(shu)(shu)出(chu)的(de)(de)直流(liu)主(zhu)(zhu)(zhu)機(ji)(ji)開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)運轉輸(shu)(shu)出(chu)功率增高越(yue)來越(yue)多,形(xing)成對主(zhu)(zhu)(zhu)機(ji)(ji)開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)主(zhu)(zhu)(zhu)機(ji)(ji)開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)路(lu)的(de)(de)搞(gao)壞。基本上(shang)主(zhu)(zhu)(zhu)機(ji)(ji)開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)功能(neng)有較大(da)的(de)(de)負載電(dian)(dian)(dian)(dian)(dian)(dian)阻約束,各服(fu)務商甚微與眾(zhong)不同(tong),廣(guang)泛為 10%身邊。 若果傷(shang)(shang)害(hai)環(huan)境(jing)下太輕(qing)(qing),覺得在傷(shang)(shang)害(hai)端串并(bing)聯(lian)一家假(jia)環(huan)境(jing)下熱(re)(re)(re)敏電(dian)(dian)(dian)(dian)(dian)(dian)阻,該假(jia)載荷電(dian)(dian)(dian)(dian)(dian)(dian)容最大(da)熱(re)(re)(re)效率換成事實上(shang)載荷最大(da)熱(re)(re)(re)效率之(zhi)和> 10%短路(lu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。

三、負(fu)債過流 

主(zhu)(zhu)(zhu)機(ji)交(jiao)流(liu)(liu)(liu)開(kai)(kai)關(guan)主(zhu)(zhu)(zhu)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)負(fu)債,與主(zhu)(zhu)(zhu)機(ji)交(jiao)流(liu)(liu)(liu)開(kai)(kai)關(guan)主(zhu)(zhu)(zhu)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)輕載條件正好不同(tong),都是主(zhu)(zhu)(zhu)機(ji)交(jiao)流(liu)(liu)(liu)開(kai)(kai)關(guan)主(zhu)(zhu)(zhu)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)三極(ji)管板板的(de)(de)(de)(de)負(fu)債三極(ji)管板板存在(zai)著出現短路,使主(zhu)(zhu)(zhu)機(ji)交(jiao)流(liu)(liu)(liu)開(kai)(kai)關(guan)主(zhu)(zhu)(zhu)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)三極(ji)管板板輸(shu)出的(de)(de)(de)(de)挺(ting)大的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu),且超額了主(zhu)(zhu)(zhu)機(ji)交(jiao)流(liu)(liu)(liu)開(kai)(kai)關(guan)主(zhu)(zhu)(zhu)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)能夠承 受的(de)(de)(de)(de)的(de)(de)(de)(de)范圍(wei)。 來(lai)說無過流(liu)(liu)(liu)防護(hu)的(de)(de)(de)(de)供電(dian)(dian)(dian)(dian)(dian)(dian)功能,輸(shu)出的(de)(de)(de)(de)須得穩(wen)壓(ya)、過壓(ya)及過流(liu)(liu)(liu)防護(hu)的(de)(de)(de)(de)的(de)(de)(de)(de)方法(fa)即使在(zai)輸(shu)出端外接(jie)兩廊(lang)過流(liu)(liu)(liu)防護(hu)的(de)(de)(de)(de)線型穩(wen)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)。

四、環(huan)境溫度過(guo)高或(huo)散熱不(bu)良 

 在使用電(dian)方案(an)電(dian)前(qian),一律要考(kao)慮到電(dian)電(dian)方案(an)的溫(wen)(wen)濕度(du)因(yin)素分(fen)類和現(xian)(xian)場還要的事情溫(wen)(wen)濕度(du)因(yin)素的范(fan)圍。據電(dian)動機(ji)扭矩耗(hao)油(you)率和現(xian)(xian)場的區域(yu)環境(jing)溫(wen)(wen)濕度(du)因(yin)素完成降(jiang)額來(lai)設(she)計。

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