Hi,
I want to calculate the ampliefier circuit gain \( Av = (Vo) / (Vi) \) using the equivalent model that i found for the circuit.
Therefore i need to know the expression for Vi and Vo
\(
Vo=(hfeib2+ib2)R3
Vi=IRB+hie1*ib1
Vi=(V)/(R2)+hie*ib1
Av=vo/vi
AV=((hfeib2+ib2)R3))/((V)/(R2))+hie.ib1))
\)
I need to eliminate the ib terms in the equation in order to be able to calculate the gain.How can i do that?Do i have to apply KCL in a specific node of the circuit?Something like Ib2=Ib1+I1.42kOhm
Thanks
(In AC_equi circuit E1 should be conected to the ground)
I want to calculate the ampliefier circuit gain \( Av = (Vo) / (Vi) \) using the equivalent model that i found for the circuit.
Therefore i need to know the expression for Vi and Vo
\(
Vo=(hfeib2+ib2)R3
Vi=IRB+hie1*ib1
Vi=(V)/(R2)+hie*ib1
Av=vo/vi
AV=((hfeib2+ib2)R3))/((V)/(R2))+hie.ib1))
\)
I need to eliminate the ib terms in the equation in order to be able to calculate the gain.How can i do that?Do i have to apply KCL in a specific node of the circuit?Something like Ib2=Ib1+I1.42kOhm
Thanks
(In AC_equi circuit E1 should be conected to the ground)
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