Interleaved switching topology for three-phase power-factor correction

Single-switch boost stages, connected between three-phase rectifiers and DC link capacitors, allow good power factor correction when operated in the discontinuous conduction mode. This paper is presented to aid design at all operating levels of this power converter type. For high output power, it is shown that reduced component stress and higher power factor results from the use of interleaved switching topologies. Some experimental results from a laboratory model are presented