Experimental Detection for Extreme Multistability via DC-Controlled Memristor Emulator

Incorporating an ideal memristor into a dynamical system is an effective way to induce extreme multistability, which is easy to be verified by simulations but difficult to be detected by analog circuit experiments. This brief is devoted to detecting such coexisting behaviors in analog circuits. A DC-controlled memristor emulator is proposed to direct the operation state of the ideal memristor. Its hysteresis loops, which are flexibly tuned by the DC control signal, are detected through circuit simulations and hardware experiments. Subsequently, the DC-controlled memristor emulator is incorporated into a Chua’s circuit, and the extreme multistability therein is reproduced and experimentally measured on an analog circuit. This brief holds the potential for promoting analog circuit applications of multi-stable memristive circuits.