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A wien-brigde chaotic oscillator based on a firs-order generalized memory resistor

A technology of memristor and oscillator, which is applied in the field of Wien bridge chaotic signal generating device, can solve the problems of dependence on dynamic characteristics and inability to connect oscillator circuits in series, and achieve the effect of simple structure and avoiding complex nonlinear physical phenomena

Inactive Publication Date: 2015-03-11
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The Wien bridge oscillator is a widely used sine wave RC oscillator circuit. Introducing a memristor into the Wien bridge oscillator and cascading an LC absorption network makes it easy to design a memristor with a new circuit topology. However, most of the reported memristive equivalent circuits are grounded, that is, one end of the equivalent input terminal needs to be grounded and cannot be connected in series. In the existing oscillator circuit
Moreover, the dynamic characteristics of most memristive chaotic circuits depend on the initial state of the memristor, and are prone to some complex nonlinear physical phenomena, such as transient chaos, paroxysmal chaos, system trajectory state transition and other nonlinear phenomena.

Method used

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  • A wien-brigde chaotic oscillator based on a firs-order generalized memory resistor
  • A wien-brigde chaotic oscillator based on a firs-order generalized memory resistor
  • A wien-brigde chaotic oscillator based on a firs-order generalized memory resistor

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] The present invention is based on the Wien bridge chaotic signal generating device of the first-order generalized memristor, and its structure is as follows:

[0028] The structure of the main circuit is as figure 1 shown, including: capacitor C 1 , capacitance C 2 , capacitance C 3 , inductance L, resistance R 1 , resistance R 2 , resistance R 3 , resistance R 4 , Operational amplifier U 1 , a memristor M composed of a diode bridge cascaded RC filter; where the resistor R 1 The positive and negative terminals are connected to the capacitor C 1 The positive and negative terminals are connected (denoted as a and b terminals respectively); the resistance R 4 The positive and negative terminals of the operational amplifier U 1 The negative terminal and the output terminal are connected (denoted as c and d terminals respectively); the operationa...

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Abstract

The invention discloses a wien-bridge chaotic oscillator based on a firs-order generalized memory resistor. The wien-bridge chaotic oscillator based on a firs-order generalized memory resistor comprises a capacitor C1, a capacitor C2, a capacitor C3, a inductor L, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an operational amplifier U1, and the memory resistor M comprised of a diode bridge cascade RC filter; wherein, the memory resistor M comprised of the diode bridge cascade RC filter comprises a diode D1, a diode D2, a diode D3, a diode D4, a resistor R0, and a capacitor C0. The wien-bridge chaotic oscillator based on a firs-order generalized memory resistor according to the invention is simple in structure, and through regulating reference values of elements of the circuit, the wien-bridge chaotic oscillator can exhibit different chaotic characteristics and obtain a chaotic behavior with complex dynamic characteristics. The memory resistor equivalent circuit according to the invention has no limitation of being grounded, i.e. the equivalent input end requires no ground processing and enables to be connected in series into the existing oscillating circuit. The dynamic characteristics of the memory resistor chaotic circuit according to the invention do not depend on the initial state, and the complex nonlinear physical phenomenon is avoided effectively.

Description

technical field [0001] The invention relates to a Wien bridge chaotic signal generating device based on a first-order generalized memristor, that is, a new type of memristor is formed by introducing a generalized memristor and an LC absorption network into a Wien bridge oscillator. Bridge Chaos Oscillator. Background technique [0002] Chaos phenomenon refers to the seemingly random irregular motion that occurs in a deterministic system. A system described by a deterministic theory, but its behavior is uncertain, non-repeatable, and unpredictable. This is the chaos phenomenon. Further studies have shown that chaos is an inherent characteristic of nonlinear dynamical systems, and is a ubiquitous phenomenon in nonlinear systems. As a ubiquitous nonlinear phenomenon, the discovery of chaos has a profound impact on the development of science. The discovery of chaos can be called the third physical revolution in this century after the theory of relativity. This revolution is im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H03K19/00
Inventor 包伯成于晶晶俞清胡丰伟姜盼林毅
Owner CHANGZHOU UNIV
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