Raicevic A.   Prica B.  

Transfer function optimization for PLL loop with realistic operational amplifier

Докладчик: Raicevic A.

Analysing stability for a linear loop model using the Bode's diagram, the best stability has second-order loop with phase correction. If we use a real operational amplifier in the loop, then its transfer function becomes the third order, which adversely affects the stability of the loop.Solving the system of nonlinear equations we determine the adjusted third order polynomial coefficients, in order to minimize discrepancies of that transfer function compared with the second order transfer function of PLL loop.