A Complete Analytic Formula of r_(if)、r_(of) of the Negative-feedback Amplifier
Fang Tian-shen · Journal of Xinyang Normal University · 2006
A practicable and complete analytic formula of closed-loop input output resistance r_(if)、r_(of)for the negative-feedback amplifier was given by circuit analytic method.The feedback factor F is not used in calcuting.The open-loop gain is also easy to calculate.The new formula can evidently describe the influence of all circuit parameters to input and output resistances.