Patent ID: 8089786
Filing Date: 2012-01-03
Classification: H02M,H02P

Abstract:
1. A power converter, comprising: an input configured for receiving an input power; an output configured for providing a modulated signal based upon the received input power; a plurality of power switch-rectifier pairs connected between the input and the output; and a plurality of coupling transformers connected to the plurality of power switch-rectifier pairs, each of the plurality of coupling transformers including a primary winding, a secondary winding, a tertiary winding, and a quarternary winding, a tertiary winding of a first transformer included in the plurality of transformers being series-connected with a tertiary winding of a second transformer included in the plurality of transformers, a quarternary winding of a first transformer included in the plurality of transformers being series-connected with a quarternary winding of a second transformer included in the plurality of transformers wherein the series-connected tertiary windings and the series-connected quarternary windings are configured for promoting a reduction of ripple voltage in a neutral star point voltage of the power converter.