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Stability of operation versus temperature of a three-phase clock-driven chaotic circuit
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作者 周继超 Hyunsik Son +1 位作者 Namtae Kim Han Jung Song 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第12期152-159,共8页
We evaluate the influence of temperature on the behavior of a three-phase clock-driven metal–oxide–semiconductor (MOS) chaotic circuit. The chaotic circuit consists of two nonlinear functions, a level shifter, and... We evaluate the influence of temperature on the behavior of a three-phase clock-driven metal–oxide–semiconductor (MOS) chaotic circuit. The chaotic circuit consists of two nonlinear functions, a level shifter, and three sample and hold blocks. It is necessary to analyze a CMOS-based chaotic circuit with respect to variation in temperature for stability because the circuit is sensitive to the behavior of the circuit design parameters. The temperature dependence of the proposed chaotic circuit is investigated via the simulation program with integrated circuit emphasis (SPICE) using 0.6-μm CMOS process technology with a 5-V power supply and a 20-kHz clock frequency. The simulation results demonstrate the effects of temperature on the chaotic dynamics of the proposed chaotic circuit. The time series, frequency spectra, bifurcation phenomena, and Lyapunov exponent results are provided. 展开更多
关键词 chaotic circuit nonlinear functions temperature effect bifurcation lyapunov exponent
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