Floating-Gate-Based Intrinsic Plasticity with Low-Voltage Rate Control

Homeostatic intrinsic plasticity is a neurobiological mechanism which adapts a neuron's channel properties over long timescales to achieve a desired average firing rate. This mechanism works to stabilize neural network dynamics. We present simulation results of a neuromorphic circuit implementation of homeostatic intrinsic plasticity using floating-gate transistors. While high voltages are required for tunneling and injection, the control parameter in our implementation is a low voltage, allowing for easy interfacing with typical analog CMOS control circuitry.