Spiking activity in a meminductive and memristive emulator-based bionic circuit

Bionic circuits can reproduce the firing activities of excitable biological neurons, which are the potential hardware foundation for artificial intelligent applications. This paper builds a meminductive and memristive emulator-based bionic circuit by referring to the electrophysiological microstructure of the lipid bilayer membrane of a biological neuron, within which an S-type memristor and a flux-controlled meminductor are employed to characterize the ion channels and their internal electromagnetic induction, respectively. The schematic of the bionic circuit only involves a capacitor, a memristor, a meminductor, and an external direct current (DC) source. Numerical simulations demonstrate that the bionic circuit can generate abundant chaotic and periodic spiking activities for the external stimulus, memristor-, and meminductor-related parameters. Moreover, a printed circuit board (PCB)-based hardware circuit is manually fabricated, upon which experimental measurements are performed to verify the chaotic and periodic spiking activities. This exploration demonstrates the feasibility of the bionic circuit in generating spiking activities and provides a hardware foundation for spike-based applications.