Method and apparatus for an isolated DC/DC converter

A controller for a motor/generator system of the type including an inverter including N machine phase switch circuits and one or more auxiliary switch circuits, an N-phase multiphase machine coupled to the inverter, and a DC-DC power supply coupled to the inverter, comprising:

• inputs configured to receive a machine control input and an auxiliary control input;
• outputs configured to couple N-phase machine drive commands to the inverter and auxiliary converter commands to the inverter;
• and
• a processor configured to generate the N-phase machine drive commands based on the machine control input and to generate the auxiliary converter commands based on the auxiliary control input, wherein the processor is configured to generate the N-phase machine drive commands to provide the N-phase machine drive signals independently of the auxiliary AC output, to generate the auxiliary control commands to provide the auxiliary AC output independently of the N-phase machine drive signals, and to generate the N-phase drive commands and the auxiliary control commands to simultaneously provide the N-phase machine drive signals and the auxiliary AC output.