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A flux-controlled cubic memristor circuit is developed and a van der Pol oscillator is implemented based on the inherent non-linear properties of this memristor. Meanwhile a linear feedback controller is designed to synchronization of two chaotic circuit. The range of the controller gain for synchronizing is derived. Both results of simulations and experiments validate the proposed van der Pol oscillation...
As a newly-proposed stochastic global optimization algorithm, artificial fish swarm algorithm (AFSA) is featured by its good global convergence and high convergence speed. However, it may suffer from the problem of being trapped in local optimum and it has relatively low search accuracy. Having analyzed the deficiencies of AFSA and making use of the ergodicity and internal randomness of chaos optimization...
Two new pulse width modulation (PWM) schemes: chaos-based sinusoidal PWM (SPWM) and chaos-based space vector PWM (SVPWM) are brought forward. There are cluster harmonics around the multiples of switching frequency in conventional SPWM and SVPWM output waves owing to their fixed switching frequencies. Chaos-based PWM strategies utilize a chaotic changing switching frequency to spread the harmonics...
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