MEMRISTIVE CHAOTIC CIRCUITS BASED ON CELLULAR NONLINEAR NETWORKS

2012 ◽  
Vol 22 (03) ◽  
pp. 1250070 ◽  
Author(s):  
ARTURO BUSCARINO ◽  
LUIGI FORTUNA ◽  
MATTIA FRASCA ◽  
LUCIA VALENTINA GAMBUZZA ◽  
GREGORIO SCIUTO
Keyword(s):  
High Speed ◽  
Electronic Circuit ◽  
Nonlinear Circuits ◽  
Chaotic Attractors ◽  
Associative Memories ◽  
Biological Models ◽  
Memristive Device ◽  
Nonlinear Networks ◽  
Chaotic Circuits ◽  
Chaotic Electronic Circuit

Memristors are gaining increasing interest in the scientific community for their possible applications, e.g. high-speed low-power processors or new biological models for associative memories. Due to the intrinsic nonlinear characteristic of memristive devices, it is possible to use them in the design of new dynamical circuits that are able to show complex behavior, like chaos. In this paper, two new memristive chaotic circuits are presented discussing, in particular, an approach based on Cellular Nonlinear Networks for the implementation of the memristive device. The approach investigated in this paper allows to obtain memristors with common off-the-shelf components and to observe the onset of new chaotic attractors in nonlinear circuits with memristors. Furthermore, the circuits presented in this paper, being the first examples of memristive chaotic circuits based on CNNs, can be considered as the link between the three inventions by Leon O. Chua, i.e. the memristor, the first chaotic electronic circuit and Cellular Nonlinear Networks.

True Random Source from Integratable Chaotic Circuits

2017 ◽  
Vol 2017 (DPC) ◽  
pp. 1-26
Author(s):  
Ned Corron ◽  
Marko Milosavljevic ◽  
Jon Blakely
Keyword(s):  
High Speed ◽  
Analog Circuit ◽  
Electronic Circuit ◽  
Random Number ◽  
Random Number Generator ◽  
Number Generator ◽  
Small Footprint ◽  
Chaotic Circuits ◽  
Chaotic Electronic Circuit ◽  
Markov Properties

In this talk, we describe a chaotic electronic circuit designed to realize a physical random number generator that is easily integrated. The small footprint of the circuit enables massive parallel realization to achieve high-speed, true-random bit sequences. The analog circuit can be fully characterized, and conjugacy to a symbolic shift proves the presence of chaos. The symbolic representation also provides a rigorous means to extract the maximum entropy from the chaotic device. Analysis of the circuit dynamics reveals critical tunings that yield special Markov properties, which are essential for removing correlations in the random sequences. Practically important is the presence of a sensitive circuit statistic that enables efficient feedback control to the Markov tuning. Numerical simulation and breadboard experimental results demonstrate the effectiveness of the proposed physical random number generator device.

SYNCHRONIZATION AND CLUSTER FORMATION PHENOMENA IN CNN-LIKE STRUCTURES OF COUPLED NONLINEAR CIRCUITS

2003 ◽  
Vol 12 (04) ◽  
pp. 389-397 ◽  
Author(s):  
Z. GALIAS ◽  
M. J. OGORZAŁEK
Keyword(s):  
Cluster Formation ◽  
Computer Experiments ◽  
Nonlinear Circuits ◽  
Spatial Clusters ◽  
Nonlinear Networks ◽  
Chaotic Circuits

The aim of this paper is to investigate synchronization phenomena in arrays composed of locally interconnected chaotic circuits. Such arrays are often considered as generalized Cellular Nonlinear Networks. In our computer experiments we study in particular the phenomena of formation of synchronized spatial clusters.

Heterostructure-based high-speed/high-frequency electronic circuit applications

1999 ◽  
Vol 43 (8) ◽  
pp. 1633-1643 ◽  
Author(s):  
P.J. Zampardi ◽  
K. Runge ◽  
R.L. Pierson ◽  
J.A. Higgins ◽  
R. Yu ◽  
...  
Keyword(s):  
High Frequency ◽  
High Speed ◽  
Electronic Circuit

New Chaotic Attractors and New Chaotic Circuits

2012 ◽  
Vol 4 (3) ◽  
pp. 125-132
Author(s):  
Fadhil Rahma ◽  
Ramzy S. Ali ◽  
Luigi Fortuna ◽  
Mattia Frasca
Keyword(s):  
Chaotic Attractors ◽  
Chaotic Circuits

scholarly journals A Novel 2D – Grid of Scroll Chaotic Attractor Generated by CNN

Symmetry ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 99 ◽  
Author(s):  
Ahmed M. Ali ◽  
Saif M. Ramadhan ◽  
Fadhil R. Tahir
Keyword(s):  
Theoretical Analysis ◽  
Chaotic Attractor ◽  
Complex Dynamics ◽  
Equilibrium Points ◽  
Chaotic Attractors ◽  
Electronic Circuits ◽  
Nonlinear Networks ◽  
Design And Implementation ◽  
Simulation Results ◽  
New System

The complex grid of scroll chaotic attractors that are generated through nonlinear electronic circuits have been raised considerably over the last decades. In this paper, it is shown that a subclass of Cellular Nonlinear Networks (CNNs) allows us to generate complex dynamics and chaos in symmetry pattern. A novel grid of scroll chaotic attractor, based on a new system, shows symmetry scrolls about the origin. Also, the equilibrium points are located in a manner such that the symmetry about the line x=y has been achieved. The complex dynamics of system can be generated using CNNs, which in turn are derived from a CNN array (1×3) cells. The paper concerns on the design and implementation of 2×2 and 3×3 2D-grid of scroll via the CNN model. Theoretical analysis and numerical simulations of the derived model are included. The simulation results reveal that the grid of scroll attractors can be successfully reproduced using PSpice.

scholarly journals Generation of Multi-Scroll Chaotic Attractors from a Jerk Circuit with a Special Form of a Sine Function

Electronics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 842
Author(s):  
Pengfei Ding ◽  
Xiaoyi Feng
Keyword(s):  
Chaotic System ◽  
Special Form ◽  
Electronic Circuit ◽  
Equilibrium Points ◽  
Phase Portraits ◽  
Chaotic Attractors ◽  
Sine Function ◽  
Sign Function ◽  
System Parameters ◽  
Left And Right

A novel chaotic system for generating multi-scroll attractors based on a Jerk circuit using a special form of a sine function (SFSF) is proposed in this paper, and the SFSF is the product of a sine function and a sign function. Although there are infinite equilibrium points in this system, the scroll number of the generated chaotic attractors is certain under appropriate system parameters. The dynamical properties of the proposed chaotic system are studied through Lyapunov exponents, phase portraits, and bifurcation diagrams. It is found that the scroll number of the chaotic system in the left and right part of the x-y plane can be determined arbitrarily by adjusting the values of the parameters in the SFSF, and the size of attractors is dominated by the frequency of the SFSF. Finally, an electronic circuit of the proposed chaotic system is implemented on Pspice, and the simulation results of electronic circuit are in agreement with the numerical ones.

Analysis and comparison of fast multiplier circuits based on different parameters

2018 ◽  
Vol 7 (3) ◽  
pp. 1189
Author(s):  
Mr Aaron D’costa ◽  
Dr Abdul Razak ◽  
Dr Shazia Hasan
Keyword(s):  
Power Consumption ◽  
High Speed ◽  
Electronic Circuit ◽  
Vlsi Circuit ◽  
Silicon Area ◽  
Lower Power ◽  
Digital Electronics ◽  
Design Specifications ◽  
Important Design ◽  
Multiplier Circuit

Digital multiplier circuits are used in computers. A multiplier is an electronic circuit used in digital electronics to multiply two binary numbers. Multiplier circuits are used in ALU for binary multiplication of signed and unsigned numbers. The delay, area and power consumption are the 3 most important design specifications a chip designer has to consider. Delay of the circuit is directly proportional to the delay of a multiplier. Increased delay in the multiplier leads to higher delay in the circuit. Therefore research is carried out as to how to reduce the delay of the multiplier block so as to reduce the delay of whole circuit. The main purpose is to deal with high speed and lower power consumption even after decreasing the silicon area. This makes them well-suited for numerous complex and convenient VLSI circuit implementations. The fact however, remains that area and speed are two contradictory performance restrictions. Hence, increase in speed always results in the use of more and complex hardware. Different arithmetic techniques can be used to implement different multiplier circuits. The focus of this paper is to implement various multiplier circuit and compare them. The timing signals can be observed using software such as Modelsim and Xilinx.  

scholarly journals Generating independent chaotic attractors by chaos anticontrol in nonlinear circuits

2005 ◽  
Vol 26 (2) ◽  
pp. 541-549 ◽  
Author(s):  
Cristina Morel ◽  
Marc Bourcerie ◽  
François Chapeau-Blondeau
Keyword(s):  
Nonlinear Circuits ◽  
Chaotic Attractors

High-speed automated atomic absorption spectrophotometry.

1978 ◽  
Vol 24 (2) ◽  
pp. 344-347 ◽  
Author(s):  
C H McMurray ◽  
W J Blanchflower
Keyword(s):  
Atomic Absorption ◽  
High Speed ◽  
Electronic Circuit ◽  
Atomic Absorption Spectrophotometry ◽  
Atomic Absorption Spectrophotometer ◽  
Automated System ◽  
Modes Of Operation ◽  
Absorption Spectrophotometry ◽  
Potential Applications ◽  
Read Signal

Abstract We describe an integrated automated system for the atomic absorption spectrophotometer. The system makes use of a light-dependent resistor to detect the presence of a marker ion which is present along with the sample ion in the flame. An electronic circuit has been developed which enables the marker ion to trigger the read signal of the spectrophotometer. The system has been tested by determining magnesium and calcium in serum. Alternative modes of operation and different potential applications are discussed.

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