VL=I*RL
Vo=(1+R4/R3)*V+=V+*(R3+R4)/R3=V+*(R1+R2)/R1
=[V*R2/(R1+R2)+VL*R1/(R1+R2)]*(R1+R2)/R1
=V*R2/R1+VL=V*R2/R1+I*RL
I=(Vo-VL)/Rs=(V*R2/R1+I*RL-I*RL)/Rs=V*(R2/R1)/Rs
工作条件:
负载电阻RL必须满足:I*RL小于运放饱和输出电压(即运放最大输出电压)
VL=I*RL
Vo=(1+R4/R3)*V+=V+*(R3+R4)/R3=V+*(R1+R2)/R1
=[V*R2/(R1+R2)+VL*R1/(R1+R2)]*(R1+R2)/R1
=V*R2/R1+VL=V*R2/R1+I*RL
I=(Vo-VL)/Rs=(V*R2/R1+I*RL-I*RL)/Rs=V*(R2/R1)/Rs
工作条件:
负载电阻RL必须满足:I*RL小于运放饱和输出电压(即运放最大输出电压)