SPICE Model of Current Polarity-Dependent Piecewise Linear Window Function for Memristors

Year 2020, Volume: 33 Issue: 4, 766 - 777, 01.12.2020

Ertuğrul Karakulak , Reşat Mutlu

https://doi.org/10.35378/gujs.605118

Cited By: 3

Abstract

Memristor and memristive systems are nonlinear systems. It is important to model them accurately. There are different memristor models and most of the models make use of window functions. In literature, there are various window functions. Recently, a piecewise linear (PWL) window function is used to model a memristor and memristive systems. Such a memristor with a PWL window function lacks a SPICE model. Also, in literature, there is current polarity dependent window functions proposed for memristors to model polarity dependent drift speed within the thin-film memristors. In this study, an alternative current-polarity dependent PWL window function is suggested to model a memristor, a different PWL function one for each current polarity is used, its SPICE model is made in LTSpice and also its simulation results are given. Such a model can be used to model the polarity dependent drift speed within the thin-film memristors.

Keywords

Memristor, Piecewise Linear Functions, Window Functions, Spice Model

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