Brushless DC motors have been used in various industrial and domestic applications because of their advantages like simple structure, large torque, long use time, good speed regulation. Generally, the BLDCM systems have uncertain and nonlinear characteristics that degrade the performance of controllers. Based on these reasons, Sliding Mode Control (SMC) is one of the popular control strategies to deal with the nonlinear uncertain system. This work implemented an SMC scheme for effective speed tracking by obtaining ripple-free torque through the inner loop current control for a BLDCM. 
This work has been carried out with simulation studies using MATLAB.