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A Flexible Closed Loop PMDC Motor Speed Control System for Precise Positioning
Tasnim Alam, Shakil Seeraji, Enaiyat Ghani Ovy, Ahsan Zamee, Abdur Rahman Al Emon
Pages - 211 - 219     |    Revised - 01-07-2011     |    Published - 05-08-2011
Volume - 2   Issue - 3    |    Publication Date - July / August 2011  Table of Contents
ATmega8L Microcontroller, DC Chopper, PWM, Tachogenerator, PMDC Motor, H-bridge
The speed control of DC motor is very significant especially in applications where precision is of great importance. Due to its ease of controllability the DC motor is used in many industrial applications requiring variable speed and load characteristics. So the precise speed control of a DC motor is very crucial in industry. In this case microcontrollers play a vital role for the flexible control of DC motors. This current research work investigates the implementation of an ATmega8L microcontroller for the speed control of DC motor fed by a DC chopper. The chopper is driven by a high frequency PWM signal. Controlling the PWM duty cycle is equivalent to controlling the motor terminal voltage, which in turn adjusts directly the motor speed. H-bridge circuit is implemented for the bi-directional control of the motor. A prototype of permanent magnet DC motor speed control system using the microcontroller is developed and tested.
CITED BY (3)  
1 Chelli, M., Hirur, R., Shashikant, A., & Dabade, H. Low Cost Implementation of Closed Loop Control for a DC Motor.
2 Vijayan, S., Murugananth, G., Samidurai, K., & Muthukrishnan, S. (2014). Experimental Validation of Fuzzy-Tuned AWPI Controller-Based Chopper Driven PMDC Motor. Journal of Testing and Evaluation, 43(6), 1-12.
3 Chelli, M., Hirur, R., Attimarad, S., Dabade, H., & Raju, A. B. Closed loop Control of A DC Motor using expEYES with Python.
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Mr. Tasnim Alam
- Bangladesh
Mr. Shakil Seeraji
- Bangladesh
Mr. Enaiyat Ghani Ovy
- Bangladesh
Dr. Ahsan Zamee
- Bangladesh
Mr. Abdur Rahman Al Emon
- Bangladesh

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