STUDY AND IMPLEMENTATION OF THRESHOLD TYPE BINARY MEMRISTOR EMULAT

Abstract

Memristor is a fourth basic circuit element which depicts the relationship between charge (q) and flux (𝟇). There is a lean presence of fabricated memristors in the market due to complexities involved in its processing. Therefore, significant research efforts are made towards presenting emulators that mimic memristor behaviour. In this project, new memristor emulator circuit has been designed based on DVCC and CFOA. The emulator consists of subtractor, inverting amplifier, integrator, bistable circuit, inverting summing amplifier, multiplier and voltage into current to ensures floating characteristic of the emulator. The subtractor senses the memristor voltage. The diodes in anti-parallel configuration provides threshold sensitive behaviour of the emulator which may be adjusted by resistor ratio. The integrator ensures the dependence of memductance on history state. The bistable circuit provides non-volatility and bistable properties of the emulator. The proposed circuit uses lesser number of resistor than the available binary memristor circuit. The proposal has been verified through Pspice simulations.