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。設計(ji)的24V20Ah鉛酸蓄電(dian)(dian)池開關型充(chong)電(dian)(dian)器實際電(dian)(dian)路見圖, 在該電(dian)(dian)路中，用(yong)兩(liang)只專用(yong)集(ji)成(cheng)電(dian)(dian)路UC3906與UC3823和一只通用(yong)運放即(ji)可完成(cheng)全(quan)部(bu)控制(zhi)功能。充(chong)電(dian)(dian)器主電(dian)(dian)路由(you)功率MOSFET ( IRF9503) 、續流二極管( UES2402) 和濾波電(dian)(dian)感( 130 μH) 等元件組成(cheng)。