Single phase power factor correction — A review

This paper provides a comprehensive review of the past and recent developments in the area of single-phase power factor correction (PFC) techniques. The motivation for the research in this area, and the manifold directions into which the research has gained impetus, are clearly brought out. The various PFC techniques are broadly classified into (1) passive, (2) active, and (3) active-passive PFC techniques. The active PFC techniques, based on the output dynamics, are further classified into (1) conventional techniques which have slow output dynamics and (2) techniques with fast output dynamics. The critical issues within each PFC technique are discussed in detail. An extensive list of references is also provided at the end.