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:
Jun. 29, 2021
Filed:
Mar. 12, 2019
Koninklijke Philips N.v., Eindhoven, NL;
Bart Michiel De Boer, Eindhoven, NL;
Andries Van Wageningen, Eindhoven, NL;
Christoph Loef, Aachen, DE;
Eberhard Waffenschmidt, Aachen, DE;
Lennart Yseboodt, Eindhoven, NL;
Menno Anne Treffers, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A wireless power transmitter capable of detecting a receiver and a method for the same is described. According to some implementations, the transmitter is configured to detect the presence of the receiver by detecting a change in capacitance in the transmitter by detecting the change in a current flowing through a capacitive circuit at the transmitter. According to some implementations, the capacitive circuit is formed by a first transmission coil corresponding to a first electrode and a second transmission coil corresponding to a second electrode. According to some implementations, the capacitive circuit is formed by a transmission coil as an electrode and a ground, or by the electrode and the receiver circuitry.