SYSTEMS AND METHODS FOR WIRELESS POWER TRANSMISSION
First Claim
1. A system for wirelessly transmitting power, comprising:
- a support base;
a pad having a transmitter electrode configured to wirelessly transmit power to a receiver electrode via capacitive coupling; and
at least one resilient member configured to bias the pad in a direction away from the support base such that, when the system is disposed on a surface and an electronic device is disposed over the pad, the pad is biased towards the electronic device and power can be transmitted wirelessly from the pad to the electronic device.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods are disclosed herein that generally involve wirelessly transmitting power to an electronic device with improved efficiency by reducing or eliminating the Z direction positional gap between the power transmitter and the power receiver and ensuring that the transmitter and receiver electrodes are substantially parallel. In some embodiments, a charging pad fits in the clearance space beneath an electronic device having feet that support the electronic device in an elevated position. In some embodiments, a charging pad includes recesses to accommodate the feet of an electronic device to reduce or eliminate the Z direction positional gap between the electronic device and the charging pad. In some embodiments, a charging pad is biased towards an electronic device by one or more resilient members such that the charging pad conforms to the bottom of the electronic device and such that the Z direction positional gap is reduced or eliminated.
13 Citations
22 Claims
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1. A system for wirelessly transmitting power, comprising:
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a support base; a pad having a transmitter electrode configured to wirelessly transmit power to a receiver electrode via capacitive coupling; and at least one resilient member configured to bias the pad in a direction away from the support base such that, when the system is disposed on a surface and an electronic device is disposed over the pad, the pad is biased towards the electronic device and power can be transmitted wirelessly from the pad to the electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless power system, comprising:
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an electronic device having a receiver electrode, a bottom surface, and a plurality of feet extending from the bottom surface such that the bottom surface is separated from a support surface by a clearance space when the plurality of feet are disposed on the support surface; and a pad having a transmitter electrode configured to wirelessly transmit power to the receiver electrode of the electronic device via capacitive coupling; wherein the pad is sized to fit within the clearance space. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A wireless power system, comprising:
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an electronic device having a receiver electrode, a bottom surface, and a plurality of feet extending from the bottom surface such that the bottom surface is separated from a support surface by a clearance space when the plurality of feet are disposed on the support surface; and a pad having a transmitter electrode configured to wirelessly transmit power to the receiver electrode of the electronic device via capacitive coupling and at least one recess configured to receive at least one of the plurality of feet of the electronic device such that the bottom surface of the electronic device is in direct contact with a top surface of the pad when the electronic device is disposed on the pad. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification