[導(dǎo)讀]該電路供電電壓為18V，靜態(tài)電流35mA,在負(fù)載電阻Rl=8歐和畸變系數(shù)k=10%情況下輸出功率可達(dá)4.5W。音量電壓可在3.5～8V之間調(diào)節(jié)。620)this.width=620;" onclick="window.open(this.src)" style="cursor:pointer" alt="點(diǎn)