11
2021-08
群奧電子告訴您如何提高電解電容的壽命
鋁電解電容器(qi)用在脈動電路中(zhong),造成功率(lv)(lv)消耗而發(fa)熱升溫的主要因素是紋(wen)波(bo)電流(liu)(liu)(對(dui)較小(xiao)(xiao)容量的電容器(qi)則(ze)是紋(wen)波(bo)電壓)的大小(xiao)(xiao),一般提供的失效率(lv)(lv)與(yu)溫度(du)關系曲線大都(dou)是在無紋(wen)波(bo)的直流(liu)(liu)電壓下(xia)測出的只考(kao)慮了漏電流(liu)(liu),比此時芯(xin)子內部(bu)中(zhong)心溫度(du)幾(ji)乎與(yu)環境溫度(du)相(xiang)差(cha)...
11
2021-04
無極性電解電容腐蝕抑制有哪些方法?
無(wu)極性電(dian)(dian)解(jie)電(dian)(dian)容(rong)腐蝕現象(xiang):腐蝕一般只(zhi)發生(sheng)在漏電(dian)(dian)流(liu)最大的地(di)方,如導箔條,引出線R部(bu),刺(ci)鉚(liu)處。陽(yang)極箔邊緣或首(shou)卷(juan)處。如引出線無(wu)異常,只(zhi)應為鋁箔或電(dian)(dian)解(jie)紙局部(bu)的問題,要(yao)解(jie)開電(dian)(dian)解(jie)紙觀察鋁箔或放大鐿看。...
11
2020-12
電解電容的壽命與電源有什么關聯?
電(dian)源在長時間(jian)的(de)運行中,有可(ke)能由于內部電(dian)位器出(chu)現(xian)松動,移位等原因,造成輸出(chu)電(dian)壓產生(sheng)較大(da)的(de)變化,極易造成誤(wu)判或(huo)漏判。因此在要(yao)求(qiu)比較高的(de)場(chang)合(he),會(hui)對電(dian)源及其他(ta)設備進行周期性(xing)(xing)的(de)校準,以保證其穩定性(xing)(xing)。但(dan)一年一次的(de)校準一般并不能及時的(de)發(fa)現(xian)該問題,當...
12
2020-09
群奧電子為您分析鋁電解電容的概念與應用
所(suo)謂電容(rong)器(qi)(capacitor)就(jiu)是能夠儲存電荷(he)的(de)(de)“容(rong)器(qi)”。只不過這種“容(rong)器(qi)”是一(yi)種特殊的(de)(de)物質——電荷(he)(charge),而且其所(suo)存儲的(de)(de)正負(fu)電荷(he)等量地(di)分布于兩(liang)塊不直接(jie)導(dao)(dao)通(tong)的(de)(de)導(dao)(dao)體板上(shang)。至此,我們就(jiu)可以(yi)描(miao)述電容(rong)器(qi)的(de)(de)基本結(jie)構:兩(liang)塊導(dao)(dao)體板(通(tong)常為金屬板)中(zhong)間隔(ge)以(yi)...
11
2020-07
群奧電子為您介紹鋁電解電容器使用的注意事項
在確認使(shi)(shi)用(yong)及安裝環境時(shi),作(zuo)為按產品樣本說(shuo)明書上(shang)所規定的(de)(de)額定性能(neng)范(fan)圍使(shi)(shi)用(yong)的(de)(de)電(dian)容器,應避免(mian)下(xia)屬情況下(xia)使(shi)(shi)用(yong):a)高(gao)溫(溫度(du)超過最(zui)高(gao)溫度(du)使(shi)(shi)用(yong));b)過流(liu)(liu)(電(dian)流(liu)(liu)超過額定紋(wen)波電(dian)流(liu)(liu));c)過壓(電(dian)壓超過額定電(dian)壓);d)施加反向電(dian)壓或交流(liu)(liu)電(dian)壓;...
10
2020-03
群奧電子為您介紹:鋁電解電容器的結構特點
鋁電(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)容器的(de)(de)(de)工(gong)作介(jie)質(zhi)為通過陽極氧(yang)化(hua)的(de)(de)(de)方式在(zai)鋁箔表面生(sheng)成一層極薄的(de)(de)(de)三(san)氧(yang)化(hua)二鋁(Al2O3),此(ci)氧(yang)化(hua)物介(jie)質(zhi)層和(he)電(dian)(dian)(dian)(dian)容器的(de)(de)(de)陽極結合成一個完整(zheng)的(de)(de)(de)體(ti)系(xi),兩者(zhe)相互依存(cun),不能(neng)彼(bi)此(ci)獨立(li);我們(men)通常所說(shuo)的(de)(de)(de)電(dian)(dian)(dian)(dian)容器,其電(dian)(dian)(dian)(dian)極和(he)電(dian)(dian)(dian)(dian)介(jie)質(zhi)是彼(bi)此(ci)獨立(li)的(de)(de)(de)。...
11
2019-09
無極性電解電容和有極性電容有什么區別
性能(neng)不同(tong):性能(neng)就是(shi)使(shi)用的(de)要求(qiu),需求(qiu)最大化(hua)就是(shi)使(shi)用的(de)要求(qiu)。如(ru)果在電(dian)視機里電(dian)源部(bu)分用金屬氧化(hua)膜(mo)電(dian)容器做濾波(bo)的(de)話(hua),而且要達到濾波(bo)要求(qiu)的(de)電(dian)容器容量和耐(nai)壓。機殼內恐(kong)怕也就只(zhi)能(neng)裝個電(dian)源了。...
11
2019-09
群奧電子貼片鋁電解電容與固態電容有什么區別?
固(gu)態(tai)(tai)電(dian)(dian)(dian)容(rong)具備環(huan)保、低阻(zu)抗(kang)、高(gao)(gao)低溫(wen)穩定、耐(nai)高(gao)(gao)紋波(bo)及高(gao)(gao)信賴度等(deng)優越特(te)性(xing),是目前電(dian)(dian)(dian)解電(dian)(dian)(dian)容(rong)產品中最高(gao)(gao)階的產品。由于(yu)固(gu)態(tai)(tai)電(dian)(dian)(dian)容(rong)特(te)性(xing)遠(yuan)優于(yu)液(ye)態(tai)(tai)鋁電(dian)(dian)(dian)容(rong),固(gu)態(tai)(tai)電(dian)(dian)(dian)容(rong)耐(nai)溫(wen)達260度,且導電(dian)(dian)(dian)性(xing)、頻率(lv)特(te)性(xing)及壽命(ming)均佳,適用(yong)于(yu)低電(dian)(dian)(dian)壓、高(gao)(gao)電(dian)(dian)(dian)流的應用(yong),主要應用(yong)于(yu)數字...
08
2019-05
群奧電子為您介紹:電解電容器的特點
鋁電解電容器價格便宜(yi),可以供各(ge)個方面的應用,而(er)且在(zai)電性(xing)(xing)能上也非常出(chu)色(se),可以說(shuo)是物美價廉。鉭電容價格較高,但可靠性(xing)(xing)也比較高、儲(chu)存壽(shou)命(ming)也長(chang),適宜(yi)于要求比較嚴格的場合應用。...
11
2019-04
長壽命電解電容降壓在工作時需要注意哪些事項?
在(zai)50Hz的(de)工頻(pin)條件(jian)下,一個1uF的(de)電(dian)(dian)容(rong)(rong)(rong)(rong)所(suo)產(chan)生(sheng)的(de)容(rong)(rong)(rong)(rong)抗約(yue)為3180歐姆(mu)。當(dang)220V的(de)交流(liu)(liu)電(dian)(dian)壓加(jia)在(zai)電(dian)(dian)容(rong)(rong)(rong)(rong)器的(de)兩端,則流(liu)(liu)過(guo)電(dian)(dian)容(rong)(rong)(rong)(rong)的(de)最大電(dian)(dian)流(liu)(liu)約(yue)為70mA。雖然流(liu)(liu)過(guo)電(dian)(dian)容(rong)(rong)(rong)(rong)的(de)電(dian)(dian)流(liu)(liu)有70mA,但在(zai)電(dian)(dian)容(rong)(rong)(rong)(rong)器上并不產(chan)生(sheng)功耗,應為如果電(dian)(dian)容(rong)(rong)(rong)(rong)是一個理想電(dian)(dian)容(rong)(rong)(rong)(rong),則流(liu)(liu)過(guo)電(dian)(dian)容(rong)(rong)(rong)(rong)的(de)電(dian)(dian)流(liu)(liu)為虛部...