Abstract
In this paper, we propose analog CMOS circuit implementation of a system of coupled phase oscillators with pulse coupling for spiking neural networks. We have designed and fabricated a CMOS circuit that achieves the dynamics of pulse-coupled oscillators using TSMC 0.25-µm CMOS technology. In our circuit, oscillator circuits with continuous-time operation interact with each other via a pulse at each firing time. We demonstrate experimentally that the circuit exhibits in- and anti-phase as well as out-of-phase synchronization. Such properties are essential for spike-based computation in neuromorphic systems.
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