Title :
Current feedback operational amplifier (CFOA) based fractional order oscillators
Author :
Said, Lobna A. ; Madian, Ahmed H. ; Radwan, Ahmed G. ; Soliman, Ahmed M.
Author_Institution :
Math. Dept., German Univ. in Cairo, Cairo, Egypt
Abstract :
This paper presents a study of fractional order oscillators based on current feedback operational amplifiers (CFOA). Two general cases have been discussed for the oscillation frequency and condition with the use of two fractional order elements of different orders. Design procedure for the two general cases is illustrated with numerical discussions. Circuit simulations for some special cases are presented to validate the theoretical findings. The simulations have been done using Ad844 commercial CFOA model.
Keywords :
calculus; circuit simulation; feedback amplifiers; operational amplifiers; oscillators; Ad844 commercial CFOA model; CFOA-based fractional order oscillators; circuit simulations; current feedback operational amplifier; oscillation frequency; Capacitors; Equations; Fractional calculus; Numerical models; Operational amplifiers; Oscillators; CFOA; Fractional calculus; Oscillators;
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on
DOI :
10.1109/ICECS.2014.7050034
