Modified log-domain oscillator for chaos

S. Ozoguz1, N.S. Sengor1
1Faculty of Electrical and Electronics Engineering, Istanbul Technical University, Istanbul, Turkey

Tóm tắt

A new chaotic oscillator with double-scroll dynamics based on an existing log-domain oscillator is presented. The circuit does not employ any PNP transistors hence it can be implemented in cheap bipolar processes, which do not offer high-quality vertical PNPs. Furthermore, the circuit operates in current-mode and thus is well suited for integrated circuit implementation. The oscillator also enjoys the possibility of electronic control of the important system parameters. Experimental result verifying the feasibility of the circuit is given.

Từ khóa

#Oscillators #Chaos #Chaotic communication #Circuit synthesis #Control system synthesis #Bifurcation #Resistors #Filters #Integrated circuit modeling #Bipolar transistor circuits

Tài liệu tham khảo

10.1049/el:19980845 10.1109/81.873879 özo?uz, 2001, A simple log-domain chaotic oscillator, Electron Lett, 37, 1378, 10.1049/el:20010930 frey, 1993, log-domain filtering: an approach to current-mode filtering, Circuits Devices and Systems IEE Proceedings G, 140, 406, 10.1049/ip-g-2.1993.0066 10.1109/81.246150 10.1109/81.915386 10.1049/el:19940003 10.1119/1.19538 10.1109/4.540057 10.1109/81.633882 10.1049/el:19951255 10.1117/12.162694