Title :
A comparison of two approaches to feedback circuit analysis
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Davis, CA, USA
fDate :
8/1/1992 12:00:00 AM
Abstract :
Two approaches for analyzing single-loop feedback circuits are compared and contrasted. One approach is based on the return-radio concept, and the other is based on two-port analysis. A frequent error in many popular texts-interchanging the computation of return ratio for a dependent source and loop gain of the idealized feedback network-is discussed. Assumptions commonly made in many texts when presenting two-port feedback analysis are examined for validity. Examples are given to highlight the differences between the two approaches
Keywords :
feedback; network analysis; feedback circuit analysis; loop gain; network analysis; return ratio; return-radio concept; two-port analysis; Analog circuits; Circuit analysis; Circuit stability; Computer networks; Control systems; Electronic circuits; Equations; Feedback circuits; Feedback loop; Terminology;
Journal_Title :
Education, IEEE Transactions on
