US Patent 11881719 Wireless power transfer object detection circuit and method
Patent 11881719 was granted and assigned to Spark Connected on January, 2024 by the United States Patent and Trademark Office.
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US Patent 11881719 Wireless power transfer object detection circuit and method
Article
Patent abstract
In an embodiment, a method includes: wirelessly transmitting power using a transmitter LC tank; wirelessly receiving power from the transmitter LC tank using a receiver LC tank; interrupting wirelessly transmitting power for a slot period; during the slot period, shorting the receiver LC tank; during the slot period and after shorting the receiver LC tank, measuring a transmitter signal associated with the transmitter LC tank; determining a power loss associated with the wirelessly transmitting power based on the measured transmitter signal; and detecting a metallic object based on the determined power loss.
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Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenneth Moore0
Petru Emanuel Stingu0
Ruwanga Dassanayake0
Yulong Hou0
Date of Patent
January 23, 2024
0Patent Application Number
170205370
Date Filed
September 14, 2020
0Patent Citations
Patent Primary Examiner
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