Inductorless realization of Chua’s oscillator using DVCCTA

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• 作者：Ajay Kumar Kushwaha ; Sajal K. Paul
• 刊名：Analog Integrated Circuits and Signal Processing
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：88
• 期：1
• 页码：137-150
• 全文大小：1,706 KB
• 刊物类别：Engineering
• 刊物主题：Circuits and Systems
  Electronic and Computer Engineering
  Signal,Image and Speech Processing
  
• 出版者：Springer Netherlands
• ISSN：1573-1979
• 卷排序：88

文摘

This research paper describes a new current mode implementation of Chua’s circuit using differential voltage current conveyor transconductance amplifier (DVCCTA) and standard passive components like resistor, capacitor and active inductor. The Chua’s circuit brings a verity of complex dynamical nature with Chaos that provides a wide range of bifurcation phenomena and attractors. The circuit 4schematic is simple but the nature of its outcome is vigorous and attractive. The existence of hidden chaotic nature is illustrated with the use of negative nonlinear resistor. Nonlinear negative resistor as well as active inductor used in the circuit is proposed using DVCCTA block. Simulations are performed by using PSPICE based ORCAD 16.6 circuit simulator to visualize various responses of the Chua’s circuit. The DVCCTA building block is implemented using 0.25 μm TSMC CMOS technology. The simulated results agree well with the theoretical predictions. To validate the workability, the proposed circuit is also experimentally verified using commercially available IC AD844.KeywordsDifferential voltage current conveyor transconductance amplifierNegative resistor using DVCCTAChua’s circuit using DVCCTADVCCTA based Chua’s oscillatorChaotic oscillator