Abstract

Abstract:The chaotic dynamics of different diodes (1N4007, 1N4148, green light emittingdiode and zener diode) in R-L-D circuit (R=1k Ohm, L=100mH) is studied athigher frequencies (1.6kHz-20kHz) and constant input voltage (3Vp-p).  A novel but simple technique is shown tomeasure diode reverse recovery time based on its chaotic dynamics. Theexperimental outputs of R-L-D circuit are found in agreement with the PSPICEmodel simulation, except in 1N4148. The chaos involved is confirmed by thebifurcation plot and Lyapunov exponents. This technique could facilitate thefabrication of fast and ultrafast diodes. Finally, two simple but elegantexperimental methods are demonstrated to control chaos in R-L-D circuit.

 Keywords: Chaos, R-L-D, reverse recovery time,frequency,  PSPICE, control of chaos,Lyapunov exponent