scholarly journals A Damping-Tunable Snap System: From Dissipative Hyperchaos to Conservative Chaos

Entropy ◽  
2022 ◽  
Vol 24 (1) ◽  
pp. 121
Author(s):  
Patinya Ketthong ◽  
Banlue Srisuchinwong
Keyword(s):  
Quadratic Function ◽  
Nonlinear Damping ◽  
Attractor Dimension ◽  
Reconfigurable Circuits ◽  
System A ◽  
Programmable Analog ◽  
Field Programmable ◽  
Analog Arrays ◽  
Hyperjerk System ◽  
First Time

A hyperjerk system described by a single fourth-order ordinary differential equation of the form x⃜=f(x⃛,x¨,x˙,x) has been referred to as a snap system. A damping-tunable snap system, capable of an adjustable attractor dimension (DL) ranging from dissipative hyperchaos (DL<4) to conservative chaos (DL=4), is presented for the first time, in particular not only in a snap system, but also in a four-dimensional (4D) system. Such an attractor dimension is adjustable by nonlinear damping of a relatively simple quadratic function of the form Ax2, easily tunable by a single parameter A. The proposed snap system is practically implemented and verified by the reconfigurable circuits of field programmable analog arrays (FPAAs).

scholarly journals Analog Reconfigurable Circuits

2014 ◽  
Vol 60 (1) ◽  
pp. 8-19 ◽  
Author(s):  
Andrzej Malcher ◽  
Piotr Falkowski
Keyword(s):  
Analog Circuits ◽  
Analog Circuit ◽  
Dynamic Reconfiguration ◽  
Reconfigurable Circuits ◽  
Analog Electronics ◽  
Programmable Analog ◽  
Field Programmable ◽  
Field Programmable Analog Arrays ◽  
Analog Arrays

Abstract The aim of this paper is to present an overview of a new branch of analog electronics represented by analog reconfigurable circuits. The reconfiguration of analog circuits has been known and used since the beginnings of electronics, but the universal reconfigurable circuits called Field Programmable Analog Arrays (FPAA) have been developed over the last two decades. This paper presents the classification of analog circuit reconfiguration, examples of FPAA solutions obtained as academic projects and commercially available ones, as well as some application examples of the dynamic reconfiguration of FPAA

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