Patent ID: 11870357
Assignee: BYD COMPANY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 3:
4. The DC-DC converter according to claim 3, wherein:
the first adjustment module comprises a first three-phase bridge circuit;
the second adjustment module comprises a second three-phase bridge circuit;
one end of each primary LC circuit is connected to a phase line connection point of a corresponding phase bridge arm in the first three-phase bridge circuit;
dotted terminals of primary coils of the three-phase voltage transformation unit are separately connected to the other ends of the corresponding primary LC circuits;
undotted terminals of the primary coils of the three-phase voltage transformation unit are connected together;
dotted terminals of secondary coils of the three-phase voltage transformation unit are separately connected to one ends of the corresponding secondary LC circuits;
undotted terminals of the secondary coils of the three-phase voltage transformation unit are connected together;
a phase line connection point of each phase bridge arm of the second three-phase bridge circuit is connected to the other end of a corresponding secondary LC circuit; and
the controller is separately connected to a control end of a switch tube of the first three-phase bridge circuit and a control end of a switch tube of the second three-phase bridge circuit.