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Microcontroller Methods of Improving Reliability in DC Brushless Motors and Cooling Fans
Microcontroller Methods of Improving Reliability in DC Brushless Motors and Cooling Fans
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机译:改善直流无刷电机和冷却风扇可靠性的微控制器方法
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摘要
A method of controlling a motor speed for a fan assembly includes receiving a duty cycle value at a microcontroller. The microcontroller receives a measured fan speed from a speed sensor. An expected fan speed is determined, where the expected fan speed corresponds to the duty cycle value. The measured fan speed is compared with the expected fan speed. A duty cycle of a motor driving signal is reduced if the measured fan speed is less than a predetermined fraction of the expected fan speed.
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