Current sharing apparatus for wireless power transfer
AssigneeWireless Advanced Vehicle Electrification, Inc.
InventorPATRICE LETHELLIER
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Abstract
An apparatus for current sharing for wireless power transfer is disclosed. The apparatus includes two or more power converter apparatuses. Each power converter apparatus is connected to a primary wireless power transfer pad. The apparatus includes one or more ferrite structures where each ferrite structure includes a conductor of at least one power converter apparatus of the two or more power converter apparatuses passing through the ferrite structure and each ferrite structure includes two or more conductors. The conductors passing through a ferrite structure of the one or more ferrite structures are arranged to maintain equal current sharing between the conductors passing through the ferrite structure.
Claims20
An apparatus comprising:
- two or more power converter apparatuses, each power converter apparatus connected to a primary wireless power transfer (“WPT”) pad;
- and
- one or more ferrite structures, wherein each ferrite structure comprises a conductor of at least one power converter apparatus of the two or more power converter apparatuses passing through the ferrite structure and each ferrite structure comprises two or more conductors, wherein the conductors passing through a ferrite structure of the one or more ferrite structures are arranged to maintain equal current sharing between the conductors passing through the ferrite structure.
An apparatus comprising:
- two or more power converter apparatuses, each power converter apparatus connected to a primary wireless power transfer (“WPT”) pad, each converter apparatus comprising a resonant converter and a switching section;
- and
- one or more ferrite structures, wherein each ferrite structure comprises a conductor of at least one power converter apparatus of the two or more power converter apparatuses passing through the ferrite structure, wherein the conductors passing through a ferrite structure of the one or more ferrite structures are arranged to maintain equal current sharing between the conductors passing through the ferrite structure,
- wherein each ferrite structure of the one or more ferrite structures comprises a toroid, the toroid comprising a ferromagnetic material, and
- wherein at least one ferrite structure of the one or more ferrite structures comprises conductors passing through the ferrite structure from two or more different power converter apparatuses and the conductors passing through the ferrite structure are arranged to maintain equal current sharing between the power converter apparatuses.
An apparatus comprising:
- two or more secondary circuits, each secondary circuit comprising rectifier section, each secondary circuit connected to a secondary wireless power transfer (“WPT”) pad that receives power wirelessly;
- and
- one or more ferrite structures, wherein each ferrite structure comprises a conductor of at least one secondary circuit of the two or more secondary circuits passing through the ferrite structure, wherein the conductors passing through a ferrite structure of the one or more ferrite structures are arranged to maintain equal current sharing between the conductors passing through the ferrite structure.
Dependencies are inferred from the claim text.