WIRELESS CHARGING SYSTEM
First Claim
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1. A wireless charging system for charging a battery of an electronic device, the wireless charging system comprising:
- a receiving coil in the electronic device connected to the battery;
a base;
a plurality of transmitting coils formed within the base, each of the plurality of transmitting coils is for transmitting electromagnetic energy which is capable of inducing a current in the receiving coil for charging the battery; and
a processor connected to the transmitting coils for selectively activating the transmitting coils one by one and detecting a load power value of each transmitting coil before charging, and activating the transmitting coil having the highest load power but inactivating the other transmitting coils when charging.
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Abstract
A wireless charging system charging an electronic device wirelessly via electromagnetic induction between a number of transmitting coils formed in the wireless charging system and a receiving coil formed in the electronic device. The wireless charging system selects the transmitting coil aligned with the receiving coil most accurately for transmitting electromagnetic energy in order to improving the energy conversion efficiency between the transmitting coil and the receiving coil.
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Citations
8 Claims
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1. A wireless charging system for charging a battery of an electronic device, the wireless charging system comprising:
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a receiving coil in the electronic device connected to the battery; a base; a plurality of transmitting coils formed within the base, each of the plurality of transmitting coils is for transmitting electromagnetic energy which is capable of inducing a current in the receiving coil for charging the battery; and a processor connected to the transmitting coils for selectively activating the transmitting coils one by one and detecting a load power value of each transmitting coil before charging, and activating the transmitting coil having the highest load power but inactivating the other transmitting coils when charging. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification