TOWARDS THRESHOLD FREQUENCY IN CHAOTIC COLPITTS OSCILLATOR
Erik Lindberg, A. Tamaševičius, Gytis Mykolaitis, Skaidra Bumelienė · International Journal of Bifurcation and Chaos · 2007
A novel version of chaotic Colpitts oscillator is described. Instead of a linear loss resistor, it includes an extra inductor and a diode in the collector circuit of the transistor. The modified circuit in comparison with the common Colpitts oscillator may generate chaotic oscillations at the fundamental frequency f* noticeably closer to the threshold frequency f T of the employed bipolar junction transistor, up to f* ≈ 0.6f T .