已知共集放大电路的 R B = 560 k Ω , R E = 5.6 k Ω , U CC = 12 V,硅晶体管的 β =60 , r be = 2 k Ω ,信号源内阻 R S = 0.56 k Ω ,负载电阻 R L = 4.4 k Ω , 试计算: (1) 静态工作点; (2) 空载和有载时的电压放大倍数; (3) 输入电阻和输出电阻。
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