對于較大容量的鉛酸蓄電池， 為了提高充電效率， 通常選用開關型充電器。設(she)計的(de)24V20Ah鉛(qian)酸蓄(xu)電(dian)(dian)(dian)池(chi)開關型充(chong)電(dian)(dian)(dian)器實際(ji)電(dian)(dian)(dian)路見圖, 在該(gai)電(dian)(dian)(dian)路中，用(yong)兩只(zhi)專用(yong)集成(cheng)(cheng)(cheng)電(dian)(dian)(dian)路UC3906與UC3823和(he)一(yi)只(zhi)通用(yong)運(yun)放即(ji)可完(wan)成(cheng)(cheng)(cheng)全部(bu)控制(zhi)功(gong)能。充(chong)電(dian)(dian)(dian)器主(zhu)電(dian)(dian)(dian)路由功(gong)率MOSFET ( IRF9503) 、續流二極管(guan)( UES2402) 和(he)濾波電(dian)(dian)(dian)感(gan)( 130 μH) 等元件組(zu)成(cheng)(cheng)(cheng)。