CONVERTER OF SINGLE-PHASE AC VOLTAGE INTO DC VOLTAGE Russian patent published in 2010 - IPC H02M7/155 

FIELD: electricity.

SUBSTANCE: converter of single-phase AC voltage into DC voltage may find application for conversion of AC voltage into controlled DC voltage and may be used in controlled DC electric drives. Proposed converter comprises twelve controlled valves and single-phase transformer with primary winding and two bisectional windinds, having taps from their beginnings, from the points of sections connection and from ends, besides numbers of turns in sections of secondary windings are equal tor different, six-valve ring is shaped out of six controlled valves, and its valves are connected by identical electrodes, remaining controlled valves are connected into two three-valve reverse stars, common points of valve electrodes connection in them form two heteropolar outlets of device, to which load is connected, at the same time identical taps of bisectional windings are connected to diametrically arranged points of ring valve electrodes connection, besides taps of each bisectional winding are connected to electrodes of ring valves, having same designation, and free electrodes of valves in one of three-valve stars, having other designation, and tap from points of sections connection in each winding is joined by two ring valves with dissimilar taps of other winding.

EFFECT: increased efficiency and power ratio.

9 dwg, 1 tbl