Patent ID: 11962249
Assignee: INFINEON TECHNOLOGIES AUSTRIA AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An apparatus, comprising:
a multi-level power converter configured to convert an input voltage to an output voltage, wherein the multi-level power converter comprises one or more switching groups, wherein a switching group of the one or more switching groups comprises a pair of switches and a flying capacitor;
a first controller configured to determine a duty reference for the switching group;
a sign correction component configured to determine a sign correction signal based on a flying capacitor ripple voltage;
one or more balancing controllers configured to determine duty correction factors for the one or more switching groups based upon a flying capacitor voltage error of the flying capacitor for the switching group; and
a duty generation component configured to generate a duty command for activating the pair of switches of the switching group based on the duty reference, the sign correction signal, and the duty correction factor.