A Topology Survey of Single-Stage Power Factor Corrector with a Boost Type Input-Current-Shaper - Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE

A topological review of the single stage power factor correctted (PFC) rectifiers is presented in this paper. Most of reported single-stage PFC rectifiers cascade a boosttype converter with a forward or a flyback dc-dc converter so that input current shaping, isolation, and fast output voltage regulation are performed in one single stage. The cost and performance of a single-stage PFC converters depend greatly on how its input current shaper (ICs) and the dc-dc converter are integrated together. For the cascade connected single-stage PFC rectifiers, the energy storage capacitor is found in either series or parallel path of energy flow. The second group appears to represents the main stream. Therefore, the focus of this paper is on these group. It is found that many of these topologies can be implemented by combining a 2-terminal or %terminal boost ICs cell with dcdc converter along with an energy storage capacitor in between. A general rule is observed that translates a 3terminal ICs cell to a 2-terminal ICs cell using an additional winding from the transformer and vice versa. According to the translation rule, many of reported single-stage PFC topologies can be viewed as electrically equivalent to one another. Several new PFC converters were derived from some existing topologies using the translation rule.