Title :
Control theory applied to the design of AGC circuits
Author_Institution :
ETS Enginyers de Telecomunicacio, Univ. Politecnica de Cataluna, Barcelona
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;
Conference_Titel :
Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean
Conference_Location :
LJubljana
Print_ISBN :
0-87942-655-1
DOI :
10.1109/MELCON.1991.161780
