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:
Sep. 20, 2022
Filed:
Jul. 07, 2020
Koninklijke Philips N.v., Eindhoven, NL;
Neil Francis Joye, Waalre, NL;
Andries Van Wageningen, Wijlre, NL;
Simon George Abernethy, Eindhoven, NL;
Klaas Jacob Lulofs, Eindhoven, NL;
Koninkliljke Philips N.V., Eindhoven, NL;
Abstract
A wireless power transfer system includes a power transmitter () arranged to provide a power transfer to a power receiver () via a power transfer signal. The power receiver () comprises a first mode controller () for transmitting a standby mode exit request to the power transmitter () by changing a loading of a communication inductor () of the power transmitter (). The power transmitter () comprises a mode controller () which controls the power transmitter () to operate in a standby mode wherein a presence of the power receiver () is detected but no power transfer signal is generated. It furthermore comprises a detector () for detecting an impedance change of the communication inductor (). The mode controller () is arranged to initiate a transition from the standby mode to a power transfer mode in response to the detector () detecting the impedance change.