Equivalent circuit model of chaotic oscillator based on memcapacitor and memory sensor

Abstract

The present invention discloses an equivalent circuit model of chaotic oscillator based on a memcapacitor and a memory sensor. The model comprises an integrated operational amplifier chip U1, an integrated operational amplifier chip U2, a multiplying unit U3, a multiplying unit U4 and a multiplying unit U5; the integrated operational amplifier chip U1 mainly achieves reverse proportion operation and integral operation; the integrated operational amplifier chip U2 mainly achieves summation operation and integral operation; the multiplying unit U3, the multiplying unit U4 and the multiplying unit U5 achieve multiplying operation of two signals; and the U1 and the U2 employ LF347, and the U4 and the U5 employ AD633. The model comprises two integrated operational amplifier chips and three multiplying units so as to allow the structure to be clear and simple and easy to implement.

Description

Technical field [0001] The invention belongs to the technical field of circuit design, and relates to a chaotic oscillator of a novel memristor and a memristor, in particular to a circuit model of a chaotic oscillator with physical feasibility and rich dynamic characteristics. Background technique [0002] At the end of the 19th century, French scientist Poincaré first discovered chaos when studying the three-body movement. In 1963, the American meteorologist Lorenz (Lorenz) showed people the charm of chaos through the "butterfly effect". In 1976, May R, an American mathematical ecologist, proposed the famous insect mouth model, which promoted the development of chaos. In 1971, Professor Cai Shaotang first proposed the concept of memristor based on circuit completeness. In 1983, Cai Shaotang proposed Chua’s circuit, which is a model of chaotic systems, which greatly promoted the development of chaotic circuits and obtained a lot of research results. In 2009, Bharathwaj M and P...

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Problems solved by technology

However, current research mainly focuses on chaotic circuits containing only one memcapacitor or one memsensor, and there are only two reports on chaotic oscillator circuits containing both memcapacitor and memsensor. The chaotic circuit composed of inductors and inductors, because the application of inductors increases the size of the actual circuit, and the configuration of parameters is more difficult to realize, there are many disadvantages in practical applications; the second is the use of memory capacitors, memory inductors and capacitors Chaotic circuit, but this circuit is only on the basis of Chua's classic circuit, replacing the capacitor and inductor in the original circuit with memcapacitor and memristor respectively, and does not constitute a new chaotic circuit structure

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