Title :
Root locus analysis for designing active-R oscillators
Author :
Vidal, Eva ; Poveda, Alberto ; Martinez, Luis
Author_Institution :
Dept. d´´Enginyeria Electron., Escola Tecnica Superior d´´Enginyeria, Tarragona, Spain
Abstract :
Root locus techniques are used to design high-frequency sinusoidal oscillators with low distortion index. The influence of the operational amplifier slew-rate is investigated by means of descriptive function analysis. A design procedure is developed providing sinusoidal oscillations up to 800 kHz. The experimental results are in agreement with the theoretical predictions
Keywords :
feedback oscillators; network analysis; network synthesis; operational amplifiers; radiofrequency oscillators; 800 kHz; HF sinusoidal oscillators; active-R oscillators; descriptive function analysis; design procedure; high-frequency oscillators; low distortion index; op amp slew-rate; operational amplifier; root locus analysis; Circuits; Frequency; Negative feedback; Operational amplifiers; Oscillators; Poles and zeros; Resistors; Telecommunications; Voltage;
Conference_Titel :
Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on
Conference_Location :
Lafayette, LA
Print_ISBN :
0-7803-2428-5
DOI :
10.1109/MWSCAS.1994.519006
