Design and implementation of modified Type-III Bridgeless Cuk LED driver for smart lighting applications

Smart lighting is considered an emerging trend in the global lighting industry. In terms of scale, expense, and performance, smart LED lighting applications are more advantageous. However, the input current of the power supply used for driving LEDs is more polluted due to the presence of switching devices, thereby lowering the power factor (PF). The bridge circuit of conventional DC–DC converters that use a diode bridge rectifier (DBR) as an interface between the main supply and the LED load have substantial losses and hence offers low efficiency. It also presents adverse power quality problems in the supply current resulting in poor PF. In this paper, artificial bee colony optimization algorithm-based closed loop digital proportional integral controller design and implementation of modified Type-III Bridgeless Cuk (BLCUK) LED driver are presented to obtain unity power factor and higher efficiency for smart lighting applications. MATLAB software is used to conduct the computer simulation analysis of the BLCUK converter. The experimental prototype is developed and tested using C2000 32-bit Microcontroller TMS320F28027. The digital controller (2P2Z-two poles two zeros controller) is implemented for the proposed control scheme, and the obtained experimental results are in consonance with the simulation outcomes.