Speed Control of DC Motor Using Microcontroller
Keywords:
DC Shunt Motor, Optical Encoder, Pulse Width Modulation (PWM), H-Bridge Using MOSFET, Peripheral Interface Controller (PIC).Abstract
Direct current (DC) motor has already become an important drive configuration for many applications across a wide range of powers and speeds. The ease of control and excellent performance of the DC motors will ensure that the number of applications using them will continue grow in future. This paper is mainly concerned on DC motor speed control system by using microcontroller PIC 16F877A. It is a closed-loop control system, where optical encoder (built in this project) is coupled to the motor shaft to provide the feedback speed signal to controller. Pulse Width Modulation (PWM) technique is used where its signal is generated in microcontroller. The PWM signal will send to motor driver to vary the voltage supply to motor to maintain at constant speed. Through this paper, it can be concluded that microcontroller PIC 16F877A can control motor speed at desired speed although there is a variation of load.
References
- Muhammad H. Rashid. Power Electronics Circuits, Devices and Applications. 3rd edition. United States of America: Prentice Hall. 2004.
- Christopher A. Adkins and Michael A. Marra, Modeling of a Phase-Locked Loop Servo Controller with Encoder Feedback. IEEE Spectrum, August 1999. 51-56.
- Moore, A.W. Phase-Locked Loops for Motor-Speed Control. IEEE Spectrum, April 1973. 61-67.
- P. C. Sen and M. L. MacDonald. Thyristorized DC Drives with Regenerative Braking and Speed Reversal. IEEE Transactions on Energy Conversion, 1978, Vol. IECI-25, No. 4: 347-354.
- http://homepages.which.net/paul.hills/SpeedControl/Speed ontrollersBody.html.
- Abu Zaharin Ahmad and MohdNasirTaib. A study On the DC Motor Speed Control by Using Back-EMF Voltage. Asia SENSE SENSOR, 2003, 359-364.
- Iovine John. PIC Microcontroller Project Book. 2nd Edition. Singapore: McGraw-Hill. 121-123; 2000.
- Sjhinskey, FG. Process Control Systems. 2ndEdition, Singapore: McGraw-Hill Book Company, 2003.
- www.wikipedia.com
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