的(de)設計(ji)一般包括變壓(ya)、整流(liu)、濾波(bo)、穩(wen)壓(ya)四個基本環節。為(wei)了提(ti)高(gao)電(dian)(dian)(dian)(dian)源(yuan)的(de)質量及其可(ke)靠(kao)性，需(xu)對電(dian)(dian)(dian)(dian)源(yuan)輸出電(dian)(dian)(dian)(dian)壓(ya)進(jin)行(xing)采(cai)樣、比較、放大(da)，并用此誤(wu)差放大(da)信號來調節其輸入電(dian)(dian)(dian)(dian)壓(ya)，使得負載(zai)變化(hua)時輸出電(dian)(dian)(dian)(dian)壓(ya)保(bao)持穩(wen)定(ding)。此外，為(wei)了提(ti)高(gao)電(dian)(dian)(dian)(dian)源(yuan)的(de)使用安(an)全性能，需(xu)設計(ji)簡單可(ke)靠(kao)的(de)過壓(ya)過流(liu)保(bao)護(hu)電(dian)(dian)(dian)(dian)路(lu)(lu)，防止電(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)流(liu)過大(da)時損壞負載(zai)元(yuan)件。以下(xia)將(jiang)從電(dian)(dian)(dian)(dian)源(yuan)主電(dian)(dian)(dian)(dian)路(lu)(lu)、控制電(dian)(dian)(dian)(dian)路(lu)(lu)、保(bao)護(hu)電(dian)(dian)(dian)(dian)路(lu)(lu)設計(ji)等3個方面簡要介(jie)紹直流(liu)穩(wen)壓(ya)電(dian)(dian)(dian)(dian)源(yuan)的(de)制作方法(fa)。

主電路部分設計主要包括電源變壓器、整流電路、濾波電路、穩壓電路設計(圖1)。變壓器把(ba)高壓交流(liu)電變為(wei)(wei)(wei)所需要(yao)的低壓交流(liu)電;整流(liu)器(qi)把(ba)交流(liu)電變為(wei)(wei)(wei)脈動(dong)直(zhi)流(liu)電;濾波器(qi)濾除直(zhi)流(liu)中的交流(liu)成分;穩壓器(qi)把(ba)波動(dong)較(jiao)大的直(zhi)流(liu)電壓變為(wei)(wei)(wei)穩定的直(zhi)流(liu)電壓輸(shu)出(chu)。