Bifurcation Analysis of the Voltage Controlled Photosensitive Chaotic Oscillator  

作　　者：Van Ha Nguyen Han Jung Song 

机构地区：[1]Department of Nano Systems Engineering,Inje University,Gimhae 621-749,Korea [2]Center for Nano Manufacturing,Inje University,Gimhae 621-749,Korea

出　　处：《Chinese Physics Letters》2013年第6期42-45,共4页中国物理快报（英文版）

基　　金：Supported by the 2013 Research Fund of Inje University.

摘　　要：A photosensitive chaotic oscillator which can be controlled with light illumination under various control voltage levels is proposed.The oscillator consists of a photodiode for the light input,clock switches and capacitors for the sample and hold function,a nonlinear function that creates an adjustable chaos map,and a voltage shifter that adjusts the output voltage for feedback.After optimizing the photodiode sub-circuit by using an available photodiode model in PC-based simulation program with integrated circuit emphasis to obtain a suitable output,the full chaotic circuit is verified with standard 0.6-μm complementary metal oxide semiconductor parameters.Chaotic dynamics are analyzed as a function of the light intensity under different control voltage levels.The time series,frequency spectra,transitions in state spaces,bifurcation diagrams and the largest Lyapunov exponent are improved.

关 键 词：OSCILLATOR CHAOTIC FUNCTION 

分 类 号：TN3[电子电信—物理电子学]