Control theory applied to the design of AGC circuits

Author

Bertran, Eduard

Author_Institution

ETS Enginyers de Telecomunicacio, Univ. Politecnica de Cataluna, Barcelona

fYear

1991

Firstpage

66

Abstract

Applications of control theory in the design of automatic gain control (AGC) circuits are presented. A general model for AGC circuits is presented, and an equivalent linear system is proposed. Its behavior is compared with the dynamical response of two implemented AGC circuits. The results of classic and state variable correctors based on the model are presented. These results show the usefulness of this linear model in the design of the AGC dynamic response. By using a linear and t-variant system the dynamical behavior is improved. This approach is used to design hyperstability and Lyapunov-based correctors

Keywords

amplifiers; automatic gain control; dynamic response; nonlinear network synthesis; stability; AGC circuit design; Lyapunov-based correctors; automatic gain control; control theory; dynamical response; equivalent linear system; hyperstability; lead corrector; state variable correctors; t-variant system; Automatic control; Circuit simulation; Circuit testing; Computer simulation; Control theory; Linear systems; Low pass filters; Performance analysis; Radio communication; Telecommunication control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean

Conference_Location

LJubljana

Print_ISBN

0-87942-655-1

Type

conf

DOI

10.1109/MELCON.1991.161780

Filename

161780