ADVANCED INDUCTIVE CHARGING PAD FOR PORTABLE DEVICES
First Claim
1. A system for charging an electronic device, comprising:
- a charging device having at least one charging surface located thereon;
an initialization component that enables charging at the charging device upon detecting that a charging surface located thereon is engageable by an electronic device;
a load detection component that detects device engagement at the charging surface; and
a charging component that wirelessly provides power to an engaged device at the charging surface via electromagnetic induction.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methodologies for efficient inductive charging of electronic devices are provided herein. A charging device as described herein can utilize a sensor-integrated resonating circuit with automatic frequency control to provide low-cost inductive charging functionality for electronic devices. As further described herein, a device to be charged can be equipped with a power receiver operable to receive power from the charging device via electromagnetic induction. The power receiver can additionally be utilized for initiation of charging such that charging for a device commences upon its associated power receiver being brought within range of an inductive charging surface at the charging device. Further, a charging device as described herein can have an inductive charging surface as well as a non-charging surface for providing other services such as information display. A charging device can integrate with an external information source to obtain items to be displayed at a non-charging surface thereon.
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Citations
20 Claims
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1. A system for charging an electronic device, comprising:
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a charging device having at least one charging surface located thereon; an initialization component that enables charging at the charging device upon detecting that a charging surface located thereon is engageable by an electronic device; a load detection component that detects device engagement at the charging surface; and a charging component that wirelessly provides power to an engaged device at the charging surface via electromagnetic induction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of controlling an electronic charging pad to facilitate charging of an electronic device, comprising:
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initializing a charging mode upon detecting that a charging area at the charging pad is oriented to allow engagement therewith; detecting engagement between the charging area and at least one power receiver associated with at least one electronic device to be charged; and providing power to at least one engaged power receiver via electromagnetic induction. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A system for controlling an inductive charging surface to inductively provide power to a portable electronic device, comprising:
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means for initializing charging upon determining that the inductive charging surface is oriented to enable coupling thereto; means for detecting coupling of an inductive power receiver associated with a portable electronic device to the charging surface upon initialization of charging; means for determining a resonant frequency associated with the inductive power receiver; and means for providing power to the portable electronic device at least in part by passing a periodic inductive current through the inductive charging surface at the resonant frequency associated with the inductive power receiver, thereby creating a magnetic field between the charging surface and the power receiver and inducing a current at the power receiver.
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Specification