Power Factor Correction (PFC) Topologies

Electronics devices require power conditioning of some form, typically rectification, for their proper functioning and operation. But since they have non-linear input characteristics and the higher line harmonics. With constantly increasing demand of this kind of devices at a high rate, line current harmonics pose a major problem by degrading the power factor of the system thus affecting the performance of the devices. By this, the objective of this work is how to develop PFC circuit for electronics devices. Hence the power factor is improved and line current harmonics is reduced. This presents a generalized approach to develop a single phase power factor correction circuit with bridgeless and voltage doubler configuration. This requires two dc/dc converter converters connected in parallel input - series output manner. Compared to conventional full bridge diode rectified circuit. This circuit using buck converter improves the power factor.