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. 31, 2019
Filed:
Jul. 11, 2016
Motorola Mobility Llc, Chicago, IL (US);
David Winkler, Aurora, IL (US);
Britton Baugher, Chicago, IL (US);
Motorola Mobility LLC, Chicago, IL (US);
Abstract
A method, a portable electronic device and a wireless charging system enables a load to be charged by selectively using a detection circuit configuration and a power receiving circuit configuration. A controller is coupled within a wireless power receiver (i) to a sensing circuit having a multi-tapped coil and (ii) to a rectifier that is coupled to the sensing circuit and removably coupled to a load. The controller detects, at an output of the rectifier, a first signal corresponding to an externally transmitted signal that is magnetically coupled to the multi-tapped coil while the sensing circuit is in the detection circuit configuration. In response to detecting the first signal, the controller switches from the detection circuit configuration to the power receiving circuit configuration. The controller then connects the load to the output of the rectifier in order to deliver power to the load.