一种基于SPWM控制实现的磁控型忆阻器等效电路

发布时间：2018-01-12 07:19

本文关键词：一种基于SPWM控制实现的磁控型忆阻器等效电路　出处：《中国科学:信息科学》2017年07期 　论文类型：期刊论文

【摘要】：目前基于集成运放构建的忆阻器等效实现电路能处理的信号功率较小,通常为毫瓦数量级.针对此问题,提出了一种基于SPWM控制实现的大功率磁控型忆阻器等效电路.该电路包括主电路和控制电路两部分,其主电路由无源低通滤波电路和可变电阻电路组成,采用电感、电阻、开关管等元器件实现,因而可用于大功率应用场合.仿真和实验结果表明所提出电路的端口电阻具有忆阻器所特有的斜"8"字伏安特性曲线,可有效实现忆阻器的功能特性;并且电路能处理的信号功率达到数百瓦;此外,所提出的电路所用元器件较少、电路结构简单、易于实现,并有助于降低研发成本.
[Abstract]:At present, the equivalent realization circuit based on integrated operational amplifier can process small signal power, which is usually of milliwatt order. A high power magnetically controlled equivalent circuit based on SPWM control is proposed. The circuit consists of two parts: the main circuit and the control circuit. The main circuit is composed of passive low-pass filter circuit and variable resistor circuit. Use inductance, resistance, switch tube and other components to achieve. The results of simulation and experiment show that the port resistance of the circuit has the characteristic curve of "8" character volt-ampere characteristic, which can effectively realize the function characteristic of the resistor. And the circuit can process hundreds of watts of signal power; In addition, the proposed circuit uses fewer components, the circuit structure is simple, easy to implement, and helps to reduce the cost of research and development.
【作者单位】：华南理工大学电力学院;
【基金】：广东省自然科学基金(批准号:2014A030313247) 国家自然科学基金(批准号:51437005)资助项目
【分类号】：TN60
【正文快照】： 1引言1971年加州大学蔡少棠教授根据电路变量关系的完备性提出了忆阻器的概念及定义[1].忆阻器描述了磁通和电荷的关系,是继电阻、电感、电容之后的第4个基本电路元件[1,2],其实质是一个具有记忆功能的非线性电阻.忆阻器分为磁控型和荷控型[1].其中荷控型忆阻器的阻值是关于电

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