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US 12,483,067 B2Granted
Wireless power transfer
AssigneeIntdevice Limited
InventorsLi Jun Yu, Hao Hao, Anton Van Vugt
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Abstract
An inductive power transfer receiver comprising: a receiving coil, a tuned circuit comprising the receiving coil, and a transformer sub-circuit connected to the tuned circuit, the transformer sub-circuit comprising a transformer primary side and a transformer secondary side, wherein in use, the transformer sub-circuit: reduces current in the receiving coil, improves power factor, and/or improves stability in the tuned circuit.
Claims15
An inductive power transfer receiver for receiving power to provide to a load, the inductive power transfer receiver comprising:
- a receiving coil,
- a tuned circuit comprising the receiving coil, and
- a transformer sub-circuit connected to the tuned circuit, the transformer sub-circuit comprising a transformer primary side and a transformer secondary side,
- wherein in use, when the inductive power transfer receiver provides received power to the load:
- the transformer sub-circuit connects the receiving coil to the load, and
- the transformer sub-circuit achieves one or more of:
- reducing current in the receiving coil,
- improving power factor, and
- improving stability in the tuned circuit;
- wherein the transformer sub-circuit comprises one transformer, comprising a transformer primary coil and a secondary coil;
- and
- wherein the transformer sub-circuit comprises at least one additional transformer, each of the at least one additional transformer comprising a transformer primary coil and a transformer secondary coil.
9 more elements
Dependencies are inferred from the claim text.