A Synchronous Control Circuit of Chua's Chaotic System Based on Feedback Current Design

Abstract

The invention discloses a Chua's chaos system synchronization control circuit which is designed based on feedback current, and the adding effect of a synchronous controller is analyzed from the perspective of the circuit. The synchronization control circuit comprises a driving system containing a lead-out variable, a synchronization controller and a response system. By using a feedback control principle, combined with the derivation process of a Chua's circuit dimensionless state equation, a feedback control circuit is designed, and combined with a voltage node part corresponding to a system state variable, the projection synchronization control of the Chua's circuit is realized through changing the feedback current in the circuit. According to the method, the module of the Chua's circuit is not needed, the essential structure of a chaos circuit is reserved, the design mode of the control circuit is novel and effective, the structure, assembly and use are simple, the control cost is low, and the circuit has an extensive application prospect and an application value in the field of chaos control.

Description

technical field [0001] The invention relates to a chaotic synchronous control circuit, and proposes a Chua's chaotic system synchronous control scheme based on feedback current design. Background technique [0002] Chaos, as a complex nonlinear motion, has a very broad application prospect in the fields of biology, physics, engineering, and informatics. Therefore, chaos synchronization has been paid attention to by researchers in various disciplines in recent years, and has achieved great success. Big results. [0003] When carrying out synchronous control of Chua's circuit, it is difficult to directly derive the system state variable and its differential value from the circuit, so there is a certain obstacle in performing synchronous control directly on the classic Chua's circuit. At present, most scholars use the state equation of Chua's circuit to modularize the system and then design the synchronous control. Although this method can theoretically realize the design of t...

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Problems solved by technology

[0003] When performing synchronous control of Chua's circuit, it is difficult to directly derive the system state variable and its differential value from the circuit, so there is a certain obstacle to directly performing synchronous control on the classic Chua's circuit

At present, most scholars use the state equation of Chua's circuit to modularize the system and then design the synchronous control. Although this method can theoretically realize the design of the synchronous controller, it changes the structure of the Chua's circuit, and to a certain extent It changes the essence of the circuit, but also increases the complexity of the circuit design and increases the design cost

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