Mixed-signal implementation of feedback-control optimizer for single-layer Spiking Neural Networks

• URL: http://arxiv.org/abs/2603.24113v1
• Date: Wed, 25 Mar 2026 09:20:20 GMT
• Title: Mixed-signal implementation of feedback-control optimizer for single-layer Spiking Neural Networks
• Abstract summary: We present a proof-of-concept implementation of feedback-controls on a mixed-signal neuromorphic processor.<n>Our results highlight the feasibility of feedback-driven, online learning under realistic mixed-signal constraints.
• Score: 0.46176728795109584
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: On-chip learning is key to scalable and adaptive neuromorphic systems, yet existing training methods are either difficult to implement in hardware or overly restrictive. However, recent studies show that feedback-control optimizers can enable expressive, on-chip training of neuromorphic devices. In this work, we present a proof-of-concept implementation of such feedback-control optimizers on a mixed-signal neuromorphic processor. We assess the proposed approach in an In-The-Loop(ITL) training setup on both a binary classification task and the nonlinear Yin-Yang problem, demonstrating on-chip training that matches the performance of numerical simulations and gradient-based baselines. Our results highlight the feasibility of feedback-driven, online learning under realistic mixed-signal constraints, and represent a co-design approach toward embedding such rules directly in silicon for autonomous and adaptive neuromorphic computing.

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