Title :
A novel method for determining open-loop parameters in feedback amplifiers
Author :
Giustolisi, G. ; Palumbo, G.
Author_Institution :
Dipt. Elettrico, Elettronico e Sistemistico, Catania Univ., Italy
fDate :
6/21/1905 12:00:00 AM
Abstract :
A novel method for determining open-loop parameters, such as unity-gain frequency and phase margin, in feedback amplifiers is given. It is based on relations between open-loop and closed-loop configurations and is very useful for evaluating the above parameters in a unity-gain amplifier from a simple measure of its closed-loop 3-dB cut-off frequency and the respective phase for a given feedback factor, β
Keywords :
feedback amplifiers; feedback amplifier; open-loop parameters; phase margin; unity-gain frequency; Cutoff frequency; Feedback amplifiers; Feedback loop; Noise level; Phase measurement; Piecewise linear techniques; Power amplifiers; Power supplies; Stability; Testing;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776808
