Title :
On the Accurate Calculation of Miller Effect
Author :
Gutierrez-Cortés, E. ; Báez-López, D.
Author_Institution :
Dept. de CEFI-Ingenieria Electronica, Univ. de las Americas, Puebla
Abstract :
Miller´s theorem has proven its usefulness in analyzing feedback amplifiers. However, it does not provide accurate results for either gain, input and output impedances. This paper presents an alternative analysis of a feedback amplifier by using the extra element theorem (EET) and the unified feedback model (UFM). The results obtained are accurate when compared to direct analysis. The paper presents an introduction to the EET and the UFM. Then an analysis of gain, input and output impedance of a capacitive feedback amplifier using both the EET and the UFM is shown. The accuracy of both algorithms is demonstrated by comparison to the results obtained by direct analysis
Keywords :
electric impedance; feedback amplifiers; frequency response; EET; Miller´s theorem; UFM; capacitive feedback amplifier; extra element theorem; impedance; unified feedback model; Algorithm design and analysis; Capacitors; Circuit analysis; Feedback amplifiers; Feedback circuits; Frequency response; Impedance; Input variables; Output feedback; Transfer functions;
Conference_Titel :
Electronics, Communications and Computers, 2007. CONIELECOMP '07. 17th International Conference on
Conference_Location :
Cholula, Puebla
Print_ISBN :
0-7695-2799-X
Electronic_ISBN :
0-7695-2799-X
DOI :
10.1109/CONIELECOMP.2007.27
