STUDY AND IMPLEMENTATION OF DC DRIVE USING PIC16F877A MICROCONTROLLER

Pathik A. Kapadiya, Ishan R. Shah, Nirav D. Mehta

Abstract: In recent world, electrical equipment’s like DC motor, AC motor, transformer etc. are the most common devices. In many industrial as well as domestic applications, the dc motors are needed to be operated either on variable speed or constant speed along with its forward and reverse operation. In this paper, the digital controller based control for DC drives is presented for the effective control of the output, when there is a sudden change in the input parameters. An assembly language program has been built for the programmable PIC16F877A microcontroller which controls the various functions of DC drive. The main objective of control is to get the desired output and keep the motor or drive safe in case of any fault occurred. Initially microcontroller has been used for the gating purpose for power electronics switches. Introducing a microcontroller based scheme facilitates the new DC drive system to deal with the various changes in the system and helps in maintaining the safe operation of the system.

Keywords: DC Motor, Microcontroller, PWMtechnique, Dutycycle

DOI: https://doi.org/10.15623/ijret.2014.0305114