Mohammed E. Fouda

Memristor emulator based on practical current controlled model

With the growing focus on memristor research, many groups are trying to develop memristor emulators due to the lack of actual solid-state memristor samples. Previously several attempts have been made to design emulators based on the ideal model of the memristor (HP model). This model is very simple and doesnt emulate the properties and behaviors of the real solid state memristors. In this paper, we introduce a generalized emulator that is built using the nonlinear models of the current controlled memristors, such as, exponential model of memristor (Simmons tunneling model). The mathematical modeling and analysis of the proposed emulator are also introduced. Finally PSPICF and analytical validations are presented.

Fractional-Order Two-Port Networks

We introduce the concept of fractional-order two-port networks with particular focus on impedance and admittance parameters. We show how to transform a impedance matrix with fractional-order impedance elements into an equivalent matrix with all elements represented by integer-order impedances; yet the matrix rose to a fractional-order power. Some examples are given.

Boundary Dynamics of Memcapacitor in Voltage-Excited Circuits and Relaxation Oscillators

This paper discusses the boundary dynamics of the charge-controlled memcapacitor for Joglekar’s window function that describes the nonlinearities of the memcapacitor’s boundaries. A closed form solution for the memcapacitance is introduced for general doping factor

A new simple emulator circuit for current controlled memristor

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On the mathematical modeling of series and parallel memcapacitors

p. The derived formulas are used to predict the behavior of the memcapacitor under different voltage excitation sources showing a great matching with the circuit simulations. The effect of the doping factor

Memristor Mathematical Models and Emulators

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