The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2022
Filed:
Oct. 07, 2019
Koninklijke Philips N.v., Eindhoven, NL;
Antonius Adriaan Maria Staring, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A wireless power transfer system comprises a power transmitter () wirelessly providing power to a power receiver () via an electromagnetic power transfer signal. The power transmitter () comprises a transmitter coil () generating the power transfer signal and a driver () generating a drive signal for the transmitter coil () to generate the power transfer signal. A foreign object detector () executes a foreign object detection operation arranged to detect a presence of a foreign object in response to a property of the drive signal. A communicator () receives a power operating point indication from the power receiver () which represents a load power for a load of the power receiver (). An adapter () adapts the foreign object detection operation in response to the operating point indication being indicative of a change in the load power meeting a criterion.