K Sainadh and K Krishna 01 03 Before using variable speed motors meant using conventional ones despite their weak qualities These limitations were handled by the use of brushless DC motor drives At present brushless DC motors are popular in a range of areas such as industrial home aerospace defiance medical and traction thanks to their good efficiency great torquetosize ratio compact size reliable performance easytocontrol system and little maintenance Since these motors use an electronic commutator that runs on a threephase voltage inverter lowquality power noticeable torque ripple and changes in speed are all issues In this research we focus on the closedloop operation of a CUK converter twoleg inverterfed BLDCM drive A MATLABSimulink model was prepared and used to test the control approach for the two leg inverter CUK converterfed BLDCM drive with split DC supply The approach including power factor adjustment ensures the drive system is more efficient all along the speed control range and also leads to reduced torque ripple and improved speed control Copyright (c) Journal of Engineering Technology and Sciences. All rights reserved 2026