Patent ID: 8045346
Filing Date: 2011-10-25
Classification: H02M

Abstract:
1. A system comprising: a plurality of modular transformers each including a primary winding coupled to an input power source and a plurality of phase-shifted secondary windings each coupled to a power cell; a first phase output line having at least a first level power cell and a second level power cell, wherein a first one of the modular transformers has a first plurality of the phase-shifted secondary windings coupled to the first level power cell and a second plurality of the phase-shifted secondary windings coupled to the second level power cell; and a second phase output line having at least a first level power cell and a second level power cell, wherein a second one of the modular transformers has a first plurality of the phase-shifted secondary windings coupled to the first level power cell and a second plurality of the phase-shifted secondary windings coupled to the second level power cell.