A power converter for converting input AC power comprising N phase-to-phase input AC waveforms at a first frequency into overall output DC power, where N is an integer greater than two, includes N phase-to-phase AC/DC converters each receiving a phase-to-phase waveform and having outputs connected in...http://www.google.fr/patents/US5311419?utm_source=gb-gplus-shareBrevet US5311419 - Polyphase AC/DC converter
