Design of Bridgeless Buck Converter to Improve the Power Factor

The main objective is to analyze a new highly efficient topology for power factor correction. By eliminating the input bridge diodes, the efficiency is improved. Due to the increasing demand of these devices, the line current harmonics pose a major problem by degrading the power factor of the system thus affecting the performance of the devices. Hence there is a need to reduce the line current harmonics so as to improve the power factor of the system. This has led to designing of Power Factor Correction circuits. In our project work we have designed an active power factor circuit using Buck Converter for improving the power factor. The proposed converter is analyzed and the theoretical and simulation results of the converter are presented.