Two Switch Buck Boost converter for Power Factor correction

Now-a-days the usage of power electronic systems has expanded to new and wide application range but the presence of harmonics is a major problem. The nonlinear operation of power semi converters and presence of bridge rectifiers in electronic devices for AC-DC conversion resulted in a high Total Harmonic Distortion (THD) and low Power Factor (PF). Thus there arise the need for a power factor correction circuit along with the power converters for limiting the allowable harmonics on the power lines, and hence to improve the power factor. This paper aims to develop an active power factor correction (PFC) for single phase AC/DC converter, along with a Two Switch Buck- Boost converter. The converter is designed for a load of 1kW at 220V.