劉彥青 發(fā)表于 2018-5-29 14:21 8 I3 o% I/ t* X' \# ?( Z" |+ [ R+ D變壓器變壓,整流橋轉(zhuǎn)單向脈動(dòng)電壓,C4削波,經(jīng)穩(wěn)壓芯片,C5再次濾波,220交流轉(zhuǎn)直流