2013 Volume 10 Issue 3 Pages 20120943
In this study, a photosensitive chaotic circuit suitable for an integrated circuit with light controllability is proposed. The circuit consists of a photo sensor, two pairs of clock switches and capacitors and two nonlinear function blocks. After modeling the photodiode by MEDICI program, the full circuit was simulated with SPICE using a 0.35µm CMOS process parameters technology. By varying the light intensity on the photodiode, chaotic dynamics such as time series and bifurcation diagram were analyzed. We confirmed that chaotic behaviors of the circuit can be controlled according to light intensity.