Krishnan, T.V.SamskritI Vittal, K.P.2026-02-0620162015 IEEE 10th International Conference on Industrial and Information Systems, ICIIS 2015 - Conference Proceedings, 2016, Vol., , p. 193-198https://doi.org/10.1109/ICIINFS.2015.7399009https://idr.nitk.ac.in/handle/123456789/32168This paper presents a review on recent developments in BLDC motor controllers and studies on four quadrant operation of BLDC drive along with active PFC. The main areas reviewed include Sensor-less control, Direct Torque Control (DTC), Fuzzy logic control, controller for four quadrant operation and active Power Factor Corrected (PFC) converter fed BLDC motor drive. A comprehensive study has been done on four quadrant operation and active PFC converter fed BLDC motor drive with simulation in MATLAB/SIMULINK. The proposed control algorithm for four quadrant operation detects the speed reversal requirement and changes the quadrant of operation accordingly. In PFC converter fed BLDC motor drive, a Boost converter working in continuous current mode is designed to improve the supply power factor. © 2015 IEEE.Active power factor correctionBLDC motor driveBoost converterFour quadrant operationSensorless controlReview of developments in BLDC motor controllers along with study of four-quadrant operation and active Power Factor correction