Bridgeless Dual Buck-Boost Converter Fed BLDC Motor Drive with Power Factor Correction

Abstract – BLDC motors are widely using in many of the industrial applications. Various converter topologies are used for feeding these BLDC motor drives.In this paper, a bridgeless configuration of buck boost converter is proposing. This converter offers good power quality at the AC mains with a filter performing the power factor correction. Speed control of the motor drive is performed by electronic commutation of the inverter switches. Simulation of this PFC bridgeless buck boost topology is done in MATLAB and the validity is proved. Keywords—Discontinous current conduction mode, Power factor correction,BLDC motor I