【三(san)端(duan)穩壓器(qi)】三(san)端(duan)穩壓器(qi)工作原理 三(san)端(duan)穩壓器(qi)使用方法

三端穩壓器種類

市面上常見的三端穩壓器主要有(you)兩種，首先是(shi)(shi)采用(yong)(yong)(yong)固(gu)(gu)定(ding)電(dian)壓(ya)(ya)輸(shu)出(chu)(chu)(chu)(chu)的(de)穩壓(ya)(ya)器(qi)(qi)(qi)，它被人叫做固(gu)(gu)定(ding)輸(shu)出(chu)(chu)(chu)(chu)三端穩壓(ya)(ya)器(qi)(qi)(qi)，另外(wai)一(yi)種穩壓(ya)(ya)器(qi)(qi)(qi)的(de)用(yong)(yong)(yong)途則更加廣泛(fan)，它的(de)輸(shu)出(chu)(chu)(chu)(chu)電(dian)壓(ya)(ya)可以根據用(yong)(yong)(yong)戶的(de)實際需要靈(ling)活去進行調整，這被叫做可調輸(shu)出(chu)(chu)(chu)(chu)三端穩壓(ya)(ya)器(qi)(qi)(qi)，這兩者(zhe)的(de)基本原理相同(tong)，也就是(shi)(shi)采用(yong)(yong)(yong)了串聯的(de)穩壓(ya)(ya)電(dian)路。尤(you)其(qi)是(shi)(shi)在線(xian)性集成的(de)穩壓(ya)(ya)器(qi)(qi)(qi)里，三端穩壓(ya)(ya)器(qi)(qi)(qi)具(ju)有(you)三個引(yin)出(chu)(chu)(chu)(chu)的(de)端子，因此外(wai)接的(de)元件相比起其(qi)他(ta)的(de)穩壓(ya)(ya)器(qi)(qi)(qi)少了很多(duo)，使用(yong)(yong)(yong)起來(lai)十分方(fang)便，性能也不輸(shu)其(qi)他(ta)的(de)穩壓(ya)(ya)器(qi)(qi)(qi)。

三端穩壓器工作原理

當實(shi)際環境中的電(dian)(dian)(dian)網(wang)電(dian)(dian)(dian)壓(ya)(ya)或(huo)者電(dian)(dian)(dian)壓(ya)(ya)負(fu)載發生了一定的變(bian)化時(shi)，輸出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)就(jiu)會(hui)增大，此時(shi)三端(duan)穩壓(ya)(ya)器通過(guo)取樣(yang)以及細(xi)致的比較放大和調(diao)整等過(guo)程，把(ba)調(diao)整管的管壓(ya)(ya)降低或(huo)者增大，由(you)此來抑制(zhi)輸出(chu)(chu)端(duan)電(dian)(dian)(dian)壓(ya)(ya)的大小，此時(shi)，輸出(chu)(chu)的電(dian)(dian)(dian)壓(ya)(ya)即能(neng)保持不變(bian)。當我們對電(dian)(dian)(dian)位(wei)器進行調(diao)節時(shi)，輸出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)也會(hui)有細(xi)微的改變(bian)。

三端穩壓器使用方法

在(zai)使(shi)用三端穩壓(ya)(ya)器(qi)時(shi)，一(yi)定要注(zhu)意VI和VO之間(jian)的(de)(de)關系，即三端穩壓(ya)(ya)器(qi)的(de)(de)固定輸出電(dian)(dian)(dian)壓(ya)(ya)和輸入電(dian)(dian)(dian)壓(ya)(ya)之間(jian)的(de)(de)壓(ya)(ya)差(cha)，我們(men)要保持調整管(guan)能(neng)在(zai)放大(da)區內(nei)正常地(di)工作，但是(shi)要知道(dao)，如果壓(ya)(ya)差(cha)值過(guo)大(da)，集成塊的(de)(de)功(gong)耗(hao)也會相應變(bian)大(da)，因此(ci)我們(men)要在(zai)使(shi)用的(de)(de)過(guo)程中(zhong)兼顧兩(liang)者，要讓最大(da)負載電(dian)(dian)(dian)流流過(guo)時(shi)不飽(bao)和，但功(gong)耗(hao)也不會過(guo)大(da)。具體的(de)(de)方法(fa)可以是(shi)在(zai)三端穩壓(ya)(ya)器(qi)的(de)(de)輸出端或(huo)者輸入端接(jie)入一(yi)個 二極管(guan) ，這樣就能(neng)防(fang)止其(qi)輸出端存(cun)儲的(de)(de)電(dian)(dian)(dian)荷直接(jie)流過(guo)穩壓(ya)(ya)器(qi)，從而對其(qi)中(zhong)的(de)(de)器(qi)件(jian)進(jin)行損壞。