Title :
OTA- or CFOA-based LC sinusoidal oscillators - analysis of the magnitude stabilization phenomenon
Author :
Bayard, J. ; Ayachi, M.
Author_Institution :
Lab. LURSA, Centre Univ. de Montfoulon, Damigny, France
fDate :
8/1/2002 12:00:00 AM
Abstract :
A nonlinear analysis of an LC oscillator based on an operational transconductance amplifier (OTA), or on a current feedback operational amplifier (CFOA), is presented. Contrary to the usual linear analysis which shows that oscillators based on OTA or CFOA have the same behavior, it is shown that, in fact, they work in a very different manner. SPICE and experimental results which confirm the theoretical analysis are given.
Keywords :
circuit stability; nonlinear network analysis; operational amplifiers; oscillators; CFOA; CFOA-based oscillators; LC sinusoidal oscillators; OTA; OTA-based oscillators; current feedback operational amplifier; magnitude stabilization phenomenon; nonlinear analysis; operational transconductance amplifier; Carbon capture and storage; Circuit simulation; Equivalent circuits; Feedback; Filters; Operational amplifiers; SPICE; Transconductance; Voltage control; Voltage-controlled oscillators;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
DOI :
10.1109/TCSI.2002.801246
