xidian123
Junior Member level 2
An OP as fig1. The Gclosed=Vo/Vi=-Rf/R1
Now I want to write the transfer function in form of fig2.
So ,the forward transfer function and feedback loop transfer function can be writed as below
Gforward=-A (A is the voltage gain of OP)
β=R1/(R1+Rf)
But the result is wrong~~Who could kindly tell me why? Thanks~~
Now I want to write the transfer function in form of fig2.
So ,the forward transfer function and feedback loop transfer function can be writed as below
Gforward=-A (A is the voltage gain of OP)
β=R1/(R1+Rf)
But the result is wrong~~Who could kindly tell me why? Thanks~~