TITLE:
Stabilization of Linear Multistage Amplifiers
AUTHORS:
J. Ladvánszky
KEYWORDS:
Linear Multistage Amplifiers, Instability, Determinant, Tridiagonal Matrix, Stern Stability Factor
JOURNAL NAME:
Circuits and Systems,
Vol.9 No.11,
November
12,
2018
ABSTRACT: In a given linear, multistage, cascaded amplifier [1] comprising passive coupling circuits and active two-ports alternatively, the problem is where in the amplifier the stabilizing circuit elements should be placed to eliminate instability, and of what type and value. Our investigations are based on a new recursive formula for the determinant of tridiagonal matrices. Relation of our results to the Stern stability factor has been obtained. A verification in numerical examples has also been provided.