Patent ID: 11870366
Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A method for operating a power conversion circuit, the circuit including a plurality of DC-AC conversion units coupled to a common DC bus, the plurality of DC-AC conversion units connected to each other in series, at least one other DC-AC conversion unit coupled to the common DC bus, and a multi-winding transformer including a magnetic core and a plurality of windings, each of the plurality of DC-AC conversion units being coupled to a corresponding winding on a first side of the multi-winding transformer and the at least one other DC-AC conversion unit being coupled to a corresponding winding on a second side of the multi-winding transformer, the second side being opposite the first side, the method comprising:
measuring a voltage of one or more intermediate nodes between the DC-AC conversion units of the plurality of DC-AC conversion units; and
adjusting a gate signal of switches of the plurality of DC-AC conversion units to regulate the voltage of the intermediate nodes.