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A third-order memristor Wien bridge chaotic oscillator

A Wien bridge and oscillator technology, applied in the field of chaotic signal generating devices, can solve the problems of complex cost, uncommercial use, high memristor, etc., and achieve the effect of stable operation and simple structure

Inactive Publication Date: 2019-05-31
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In 2008, the Strukov team of Hewlett-Packard's laboratory successfully realized it for the first time, but due to the high cost and complicated manufacturing process of memristor, it cannot be commercialized in the short term.

Method used

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  • A third-order memristor Wien bridge chaotic oscillator
  • A third-order memristor Wien bridge chaotic oscillator
  • A third-order memristor Wien bridge chaotic oscillator

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the given drawings and specific examples of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, those of ordinary skill in the art All other examples were obtained without creative effort. All belong to the protection scope of the present invention.

[0019] Mathematical modeling: a kind of third-order memristive Wien bridge chaotic oscillator of the present embodiment is constructed as figure 1 As shown, it is achieved by replacing the resistance of the parallel RC network in the Wien bridge oscillator with a modified memristive simulator.

[0020] The equivalent realization circuit of the improved memristor simulator is as follows: figure 2 As shown, the effect of avoiding the drift of the integral voltage can ...

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Abstract

The invention relates to a chaotic signal generation device, in particular to a third-order memristor Wien bridge chaotic oscillator which is simple in structure and stable in work, and can generate complex chaotic signals. The memristor circuit comprises an operational amplifier U, two capacitors C1 and C2, three resistors R, Rf and Ri and a memristor W. A resistor Rf is bridged between the inverting input end and the output end of the operational amplifier U, one end of the resistor Ri is connected with the inverting input end of the operational amplifier U, and the other end of the resistorRi is grounded. The positive end of the capacitor C1 is connected with the in-phase input end of the operational amplifier U, and the negative end of the capacitor C1 is grounded; wherein the negative electrode end of the capacitor C2 is connected with the in-phase input end of the operational amplifier U, the positive electrode end of the capacitor C2 is connected with the output end of the U after being connected with the resistor R in series, the positive electrode end of the memristor W is connected with the in-phase input end of the operational amplifier U, and the negative electrode endof the memristor W is grounded.

Description

technical field [0001] The invention relates to a chaotic signal generating device, in particular to a third-order memristive Wien bridge chaotic oscillator. Background technique [0002] Chaos theory is a discipline that has flourished over the past fifty years. Chaos is ubiquitous, and it permeates almost every corner of human society. A large number of studies have shown that chaos has broad application prospects in the fields of bioengineering, mechanical engineering, electronic engineering, data encryption, secure communication, dynamic analysis and protection of power grids, etc. Early chaotic system generation models, such as the Lorenz atmospheric turbulence equation, the Logistic insect population model, Chua's chaotic circuit, etc. Generally speaking, the simplicity of the physical realization of chaotic circuits and the complexity of the resulting attractor topology are two important directions for the research of chaotic circuits. [0003] Wien bridge oscillat...

Claims

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Application Information

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IPC IPC(8): H04L9/00
Inventor 陈连玉
Owner JIANGSU UNIV OF TECH
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