Open AccessSallen–Key low‐pass filter‐based inductor‐free simplified Chua's circuit
Author(s) -
Bao Han,
Wu Pingye,
Bao BoCheng,
Chen Mo,
Wu Huagan
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0311
Subject(s) - chua's circuit , attractor , inductor , chaotic , control theory (sociology) , filter (signal processing) , limit (mathematics) , resistor , computer science , low pass filter , topology (electrical circuits) , mathematics , engineering , mathematical analysis , electrical engineering , voltage , control (management) , combinatorics , artificial intelligence , computer vision
This present study reports a new type of inductor‐free simplified Chua's circuit only using two‐op‐amps‐based realisation, which is implemented by cascading a Sallen–Key low‐pass filter with a simplified Chua's diode. With mathematical model‐based numerical simulations and hardware circuit‐based experimental measurements, it is demonstrated that the reported circuit exhibits the similar dynamical behaviours of the classical Chua's circuit such as point attractor, limit cycles, period doubling route, chaotic spiral attractors, double‐scroll chaotic attractor, boundary crisis, coexisting bifurcation modes, and so on. Furthermore, the proposed circuit enriches the realisation forms of Chua's circuit family.