基于数字温度传感器STDS75或STLM75和ST72651AR6单片机AN2680风扇速度控制器

基于数字温度传感器STDS75或STLM75和ST72651AR6单片机AN2680风扇速度控制器

AN2680
Application note
Fan speed controller based on STDS75 or STLM75 digital
temperature sensor and ST72651AR6 MCU

Introduction
This application note describes the method of defining the system for regulating the speed
of the 5 Vdc fan using an ST72651AR6 microcontroller and digital temperature sensor
STDS75 or STLM75.
The sensor measures the temperature data and communicates this data to the
microcontroller. Based on this temperature data, the microcontroller issues a PWM signal
with varying duty cycle to the fan fo