DC-TO-AC CONVERTER Russian patent published in 2004 - IPC

FIELD: converter engineering; power systems for automatic-control devices and electric drives.

SUBSTANCE: proposed converter designed to convert low dc voltage into high sine-wave voltage that has transformer 4, first and second transistor switches 2 and 3, respectively, control unit 12, rectifier bridge 6, third and fourth transistor switches 7 and 8, respectively, and capacitor 10 is provided in addition with double-coil reactor 9 whose first-coil first lead is connected to common point of input of transistor switch 7 and output of transistor switch 8; input of the latter is connected to second output of rectifier bridge 6; second lead of first coil of double-coil reactor 9 is connected to first output lead of converter, to first lead of capacitor 10 whose second lead is connected to second output lead of converter, and to first lead of second coil of double-coil reactor 9;, second lead of this coil being connected to secondary-winding center tap of transformer 4; common bus of converter is connected to integrated inputs of first and second transistor switches 4 and 3, respectively.

EFFECT: enhanced efficiency and reliability of converter.

1 cl, 4 dwg