Multiple phase power supply having current shared power factor correction

摘要

A multi-phase (N) power supply is presented having current shared power factor correction. This includes N input rectifier filters each receiving a respective different one of an N phase AC input signal and providing therefrom one of N rectified signals. N single phase power factor correction pre-regulators each receive a respective different one of the rectified signals and provide therefrom a regulated signal. A current sharing N way to single way multiplexing switch network receives the N regulated signals and provides therefrom a single output signal.