THREE-PHASE AC-TO-DC VOLTAGE CONVERTER Russian patent published in 2000 - IPC

FIELD: converter engineering; DC and AC power supplies. SUBSTANCE: converter has transformer with primary and secondary windings placed on single-phase non-branched or single-phase branched shell-type magnetic core. Primary winding may be assembled of six similar coils each connected between one of power terminals and neutral conductor through controlled gate. In addition, these coils may have twice as small number of turns interconnected through unlike-polarity terminals and connected to line voltage through pair of controlled gates connected in parallel opposition. Primary winding may be also made as single-phase center- tapped arrangement connected to output of three-armed bridge circuit with center tap connected to neutral conductor. EFFECT: reduced mass and size of converter. 3 cl, 5 dwg