International Conference on Computer Technology and Development, 3rd (ICCTD 2011)
388 PWM Speed Control of DC Motor by Temperature Sensor
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The principles of PWM using a temperature sensor have been introduced in this paper. To the defects of traditional methods, it proposed the designing strategy of DC motor speed control system based on single chip microcontroller with integrated circuits, and described the overall framework of the system. The system will detect the temperature and send the reading to the microcontroller then it will generate PWM signals to motor control then the motor accelerating, decelerating and turning, its operating parameters can be obtained through the measurement module and displayed on LCD. Experiment proved that the system has high stability, and it can meet the needs of DC motor speed regulation.