Patent ID: 9595862
Date: 2017-03-14
CPC Classifications: H02M

Claim:
1. A system comprising: a first five-level inverter comprising a first three-level inverter and a second three-level inverter configured to operate with a first phase shift between the first three-level inverter and the second three-level inverter; a second five-level inverter comprising a third three-level inverter and a fourth three-level inverter configured to operate with a second phase shift between the third three-level inverter and the fourth three-level inverter; a third five-level inverter comprising a fifth three-level inverter and a sixth three-level inverter configured to operate with a third phase shift between the fifth three-level inverter and the sixth three-level inverter; a transformer having three primary windings and three secondary windings, wherein: an output filter connected to the three secondary windings.