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The circuit-based emulation of memristor elements is becoming increasingly popular due to various advantages it offers over the physical architectures. The work reported in this paper presents the architectures of two novel circuit configurations dedicated to the realisation of an ideal memristor and a new but useful element, inverse memristor, respectively. Both presented circuit emulators are based on VDCC (Voltage Differencing Current Conveyor) active element. Over the previously reported bulky circuit emulators, the presented emulators have a significant design-related advantage since these are multiplier-less and grounded elements-based architectures. The developed circuits possess a tunability feature with respect to biasing voltage as well as the employed resistance. The mathematical description of pinch-off tuning and utilisation of inverse-memristor (for achieving better control over memristor characteristics) have been discussed with MATLAB simulations. To verify the workability of presented circuit architectures, the PSPICE environment has been chosen for simulation purpose. All the simulation results have been illustrated and discussed in detail. Later, the presented emulator circuits are developed using commercial ICs like CA3080 and AD844, and related results are described.

Compact tunable memristor and inverse-memristor emulators with grounded passive elements