Patent ID: 7932633

Claim:
A traction inverter circuit comprising: a first energy storage device configured to output a DC voltage; a first bi-directional DC-to-AC voltage inverter coupled to the first energy storage device; a first electromechanical device comprising: a first plurality of conductors coupled to the first bi-directional DC-to-AC voltage inverter; a second plurality of conductors coupled together; and a plurality of windings coupled between the first plurality of conductors and the second plurality of conductors; and a charge bus coupled to the first bi-directional DC-to-AC voltage inverter and comprising a first conductor directly coupled to the second plurality of conductors of the first electromechanical device, the charge bus configured to transmit a charging voltage to or receive a charging voltage from the first electromechanical device to charge the first energy storage device via the first electromechanical device and the first bi-directional DC-to-AC voltage inverter.