Method for distinguishing metal objects from heating cup and wireless charging device using the same

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United States of America Patent

PATENT NO 11462951
SERIAL NO

17405855

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Abstract

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A method for distinguishing metal objects from a heating cup and a wireless charging device using the method are disclosed. The wireless charging device includes a housing, a power unit, a power transmitter, a current measuring unit, a Q factor measuring unit, a controller, and a temperature detector. The wireless charging device can distinguish metal objects from a heating cup by both current in the power transmitter and the Q factor of the power transmitter. If the heating cup is confirmed, a higher power will be provided to a metal heating layer of the heating cup to heat the liquid in the heating cup; otherwise, a lower power will be provided to charge general electronic devices having a power receiving element.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kao, Peter Baldwin Park, US 12 329

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