Patent ID: 8183850
Filing Date: 2012-05-22
Classification: H02M

Abstract:
1. A power converting device, comprising: a plurality of N voltage converting units each comprising a first output and a second output, each voltage converting unit outputs a first voltage signal of a first phase at the first output, and a second voltage signal of a second phase at the second output; a plurality of N first inter-phase transforming units, each comprising a primary coil and a secondary coil which are magnetically coupled, the first output of each one of the plurality of the N voltage converting units is connected to a primary coil of a different one of the plurality of the N first inter-phase transforming units, the primary coil of each one of the plurality of the N first inter-phase transforming units is electrically connected to one secondary coil of another one of the plurality of the N first inter-phase transforming units; and a plurality of N second inter-phase transforming units, each comprising a primary coil and a secondary coil which are magnetically coupled, the second output of each one of the plurality of the N voltage converting units is connected to a primary coil of a different one of the plurality of the N second inter-phase transforming units, the primary coil of each one of the plurality of the N second inter-phase transforming units is electrically connected to one secondary coil of another one of the plurality of the N second inter-phase transforming units, wherein the plurality of N first inter-phase transforming units and the plurality of the N second inter-phase transforming units are grouped in N sets of inter phase transforming units, each one of the N sets of inter phase transforming units comprising one of the first inter-phase transforming units and one of the second inter-phase transforming units, and wherein each of the N sets of inter-phase transforming units are combined in one modular unit.