Predictive Thermal Management for Dual PWM Fans in High-Power Audio Amplifiers
Journal: Applied System Innovation
Year: 2026

This paper presents the design and implementation of a low-cost microcontroller-based dual-channel fan controller optimized for high-power audio amplifiers, yet adaptable to power supplies, electronic loads, and other thermally intensive systems. Unlike conventional designs that drive all fans uniformly, the proposed solution provides fully independent cooling via dual I2C temperature sensors, predictive trend analysis, and multi-stage hysteresis. The controller incorporates advanced features in