Wireless power transmission structures
First Claim
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1. A wireless power transfer apparatus, comprising:
- a support structure having a top surface and a side surface, the support structure being configured to support a mobile device on the top surface and a wearable device at the side surface; and
a plurality of transmit coils within the support structure, the plurality of transmit coils being configured to wirelessly transmit power to the mobile device on the top surface and the wearable device at the side surface,wherein the plurality of transmit coils comprises a first transmit coil that conducts current in a first direction and a second transmit coil that conducts current in a second direction opposite to the first direction to produce constructive interference at the side surface; and
wherein the first transmit coil comprises a spiral-shaped winding proximate the top surface of the support structure.
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Abstract
A wireless power transfer apparatus includes a support structure having a top surface and a side surface. The support structure is configured to support a mobile device on the top surface and a wearable device at the side surface. The wireless power transfer apparatus also includes a plurality of transmit coils within the support structure. The plurality of transmit coils are configured to wirelessly transmit power to the mobile device on the top surface and the wearable device at the side surface.
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Citations
16 Claims
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1. A wireless power transfer apparatus, comprising:
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a support structure having a top surface and a side surface, the support structure being configured to support a mobile device on the top surface and a wearable device at the side surface; and a plurality of transmit coils within the support structure, the plurality of transmit coils being configured to wirelessly transmit power to the mobile device on the top surface and the wearable device at the side surface, wherein the plurality of transmit coils comprises a first transmit coil that conducts current in a first direction and a second transmit coil that conducts current in a second direction opposite to the first direction to produce constructive interference at the side surface; and wherein the first transmit coil comprises a spiral-shaped winding proximate the top surface of the support structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless power transfer apparatus, comprising:
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a support structure having a cavity configured to accommodate an electronic device; and an upper transmit coil and a lower transmit coil within the support structure, the upper and lower transmit coils having current that flows in opposite directions to produce magnetic fields that constructively interfere in the cavity to wirelessly transmit power to the electronic device, wherein the upper transmit coil and/or the lower transmit coil surrounds the cavity. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification