Research On PT Control Based On Memory Element Multivibrator And Its Application In Power And Signal Synchronous Transmission

Memristor(MR)and memcapacitor(MC)have the advantages of nano-scale volume,low power consumption and non-volatility,which have great potential in VLSI.In this thesis,a multivibrator based on MR/MC emulator is studied.With the advantage of controllable duty cycle/frequency of the output voltage waveform,the multivibrator is applied to Pulse Train(PT)control and Power and Signal Synchronous Transmission(PSST)of Buck converter.Firstly,a novel floating binary MR/MC emulator is designed,and the mechanism of memristance/memcapacitance change and the control method of three-terminal MR/MC are studied.A multivibrator based on binary MR/MC and three-terminal MR/MC is constructed.The MR/MC-based multivibrator with controllable duty cycle/frequency is designed.The simulation and experimental results show that the input and output characteristics of the emulator conform to the typical characteristics of MR/MC,and the multivibrator can be controlled to output rectangular waves with controllable duty cycle/frequency according to different use scenarios.Secondly,to solve the problem of low frequency oscillation of Buck converter in continuous conduction mode(CCM)controlled by traditional PT,a discrete hysteresis inductance current pulse train(DHIC-PT)control method based on multivibrator using MR.The simulation and experimental results show that the multivibrator based on MR can stably output rectangular wave with controllable duty cycle,and can be used as high and low power pulse to adjust the output voltage of Buck converter.Pulse selection and pulse triggering can be completed simultaneously,without logic selection module.DHIC-PT control method can effectively suppress the low frequency oscillation of Buck converter controlled by PT in CCM and improve the transient response speed of Buck converter.Thirdly,a multivibrator circuit with controllable duty cycle/frequency is designed by using the binary MR and the three-terminal MC,which is used in the DHIC-PT control circuit.Since the output voltage ripple of the Buck converter is affected by the control pulse frequency,the voltage ripple caused by the pulse frequency change is used as the signal carrier,and the output voltage ripple is demodulated by FFT to obtain the original coded signal,which realizes the PSST.There are 52 figures,9 tables and 92 references.