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- Title
CCCCTA-based Chua's Circuit for Chaotic Oscillation.
- Authors
Bhatt, Vivek; Ranjan, Ashish; Joshi, Manoj
- Abstract
This research article contributes a Chua's diode implementation using a modern active block Current Controlled Current Conveyor Transconductance Amplifier (CCCCTA) with an active MOS transistor for electronically tunable feature. CCCCTA and MOS resistor are responsible for the variation in Chua's diode characteristics and their performance is well studied with the help of dynamical aspects like dissipativity, invariance, bifurcation diagram, Lyapunov exponents, and basin of attraction. The proposed model has a hidden attractor with one unstable node equilibrium and two symmetric stable node equilibrium points. In addition to numerical simulation in MATLAB, the electronic circuit for the proposed Chua's circuit is successfully verified in PSPICE and hardware implementation using commercially available ICs (AD844, CA3080). Chua's traditional chaotic response (double scroll, Rossler, and large limit cycle) can be easily observed by: (i) adjusting the coupling resistor between two capacitor present in a Chua's circuit, (ii) tuning the bias current of CCCCTA present in the proposed Chua's diode, and (iii) by tuning the controlling voltage of MOS resistor (RMOS). The feasibility of the proposed work applies to Chaotic Amplitude Shift Keying (CASK) transmission. Finally, a comparative study is studied with the existing works of literature.
- Subjects
CURRENT conveyors; LIMIT cycles; BIFURCATION diagrams; ELECTRONIC circuits; OSCILLATIONS; LYAPUNOV exponents; CHAOTIC communication
- Publication
Circuits, Systems & Signal Processing, 2024, Vol 43, Issue 4, p2051
- ISSN
0278-081X
- Publication type
Article
- DOI
10.1007/s00034-023-02579-w