Patent ID: 11888404
Assignee: DELTA ELECTRONICS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A multiple-port converter, comprising:
a transformer having a primary winding, a secondary winding and a tertiary winding;
a primary power stage having a first plurality of switches and electrically connected to a first energy source and the primary winding of the transformer;
a secondary power stage having a second plurality of switches and at least a resonant capacitor and a resonant inductor connected in series, and electrically connected to a second energy source and the secondary winding of the transformer, the primary power stage and secondary power stage forming a series resonant converter with an associated resonance frequency determined by the resonant capacitor and the resonant inductor;
a tertiary power stage having a third plurality of switches and at least an inductor and electrically connected to a third energy source and the tertiary winding of the transformer, the primary power stage and tertiary power stage forming a dual active bridge converter with an associated inductance between the primary power stage and the tertiary power stage; and
a controller electrically connected to the primary, secondary, and tertiary power stages to measure operating conditions in the multiple-port converter and to provide control signals to the first, second and third plurality of switches;
wherein the controller comprises control logic configured to send the control signals to the first, second, and third plurality of switches, the control logic of the controller is configured to vary a switching frequency of the first plurality of switches or the second plurality of switches to regulate current corresponding to the second energy source,
wherein the secondary power stage and the tertiary power stage are controlled independently from each other.