WIRELESS POWER TRANSMITTING UNIT USING METAL PLATES
First Claim
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1. An apparatus for wireless power transmission comprising:
- a charging surface comprising a plurality of electrically conductive plates physically spaced apart from each other by a plurality of slots; and
a current driving circuit configured to induce, in one or more of the plurality of electrically conductive plates, eddy currents which cause magnetic fields to emanate from one or more of the plurality of slots and establish a charging area about the charging surface defined by the magnetic fields to wirelessly transfer power to one or more power receiving units via the magnetic fields.
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Abstract
An apparatus for wireless power transmission may include several electrically conductive plates separated from each other by slots and arranged to define a charging surface. A current driving circuit disposed among the plurality of electrically conductive plates can be configured to produce a flow of current in one or more of the plurality of electrically conductive plates. Resulting magnetic fields can emanate from the slots to establish a charging area about the charging surface for wireless transfer of power to one or more power receiving via the magnetic fields.
91 Citations
30 Claims
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1. An apparatus for wireless power transmission comprising:
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a charging surface comprising a plurality of electrically conductive plates physically spaced apart from each other by a plurality of slots; and a current driving circuit configured to induce, in one or more of the plurality of electrically conductive plates, eddy currents which cause magnetic fields to emanate from one or more of the plurality of slots and establish a charging area about the charging surface defined by the magnetic fields to wirelessly transfer power to one or more power receiving units via the magnetic fields. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for wireless power transmission comprising:
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a charging surface configured to produce magnetic fields for wireless transmission of power to one or more power receiving units, the charging surface comprising a plurality of electrically conductive plates physically spaced apart from each other and electrically separable from each other; a plurality of first switches selectively and separately operable to electrically connect or disconnect pairs of the plurality of electrically conductive plates, the plurality of first switches operable to form a first configuration of connected and disconnected electrically conductive plates including a first set of electrically conductive plates electrically connected together to define a first power transmitting element; and first and second terminals configured to receive power from a power source and provide the received power to the first power transmitting element to generate magnetic fields which emanate from slots between the first set of electrically conductive plates that comprise the first power transmitting element. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for wireless power transmission comprising:
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producing one or more flows of current among some of a plurality of electrically conductive plates that are arranged to define a charging surface; producing magnetic fields in response to the one or more flows of current; and coupling the magnetic fields to a power receiving unit in proximity to the charging surface to wirelessly transmit power to the power receiving unit. - View Dependent Claims (25, 26, 27)
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28. An apparatus for wireless power transmission comprising:
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means for producing flows of current among some of a plurality of electrically conductive plates that define a charging surface; and means for generating magnetic fields that arise due to the flows of current among some of the plurality of electrically conductive plates in order to couple the magnetic fields to a power receiving unit disposed in proximity to the charging surface to wirelessly transmit power to the power receiving unit. - View Dependent Claims (29, 30)
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Specification