Memristive Sisyphus circuit for clock signal generation

TL;DR

This paper presents a novel memristive frequency generator using digital logic and a threshold-type memristor, capable of producing oscillations with potential nanoscale applications and mimicking natural cyclic processes.

Contribution

It introduces a memristive oscillator design that combines digital logic with a single memristive device, demonstrating both experimental and theoretical operation.

Findings

Successful experimental demonstration with memristor emulator

Theoretically modeled with a threshold memristive device

Potential for nanoscale oscillator applications

Abstract

Frequency generators are widely used in electronics. Here, we report the design and experimental realization of a memristive frequency generator employing a unique combination of only digital logic gates, a single-supply voltage and a realistic threshold-type memristive device. In our circuit, the oscillator frequency and duty cycle are defined by the switching characteristics of the memristive device and external resistors. We demonstrate the circuit operation both experimentally, using a memristor emulator, and theoretically, using a model memristive device with threshold. Importantly, nanoscale realizations of memristive devices offer small-size alternatives to conventional quartz-based oscillators. In addition, the suggested approach can be used for mimicking some cyclic (Sisyphus) processes in nature, such as "dripping ants" or drops from leaky faucets.