Title :
Simplified analysis of feedback amplifiers
Author :
Marrero, José Luis Rodríguez
Author_Institution :
Univ. Pontificia Comillas, Madrid, Spain
Abstract :
A very simple and general method for the analysis of feedback amplifiers with large-loop gain is presented in this paper. The general properties of feedback amplifiers, such as gain and input and output resistances, are obtained using an open-loop circuit where the loading effect of the feedback network is easily taken into account. Emphasis is placed on quick, intuitive, and reliable calculations, useful for both the analysis and design of feedback amplifiers.
Keywords :
electronic engineering education; feedback amplifiers; open loop systems; feedback amplifier analysis; large-loop gain; loading effect; open-loop circuit; output resistance; Differential amplifiers; Diodes; Feedback amplifiers; Feedback circuits; Frequency; Helium; Negative feedback; Operational amplifiers; Output feedback; Transistors;
Journal_Title :
Education, IEEE Transactions on
DOI :
10.1109/TE.2004.832878
