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:
Oct. 11, 2022
Filed:
Oct. 19, 2020
Futurewei Technologies, Inc., Plano, TX (US);
University of Tennessee Research Foundation, Knoxville, TN (US);
Chongwen Zhao, Knoxville, TN (US);
Daniel Costinett, Knoxville, TX (US);
Songnan Yang, Frisco, TX (US);
Futurewei Technologies, Inc., Addison, TX (US);
University of Tennessee Research Foundation, Knoxville, TN (US);
Abstract
Described herein is a wireless charging system including switched capacitor (SC) rectifiers with output regulation. The load for the receiver on mobile devices using wireless charging is a battery. Regulation is needed for battery charging applications, e.g. constant voltage charging, constant current charging, and pulsed charging. For this purpose, the wireless power transfer (WPT) receiver can possess some 'intelligence' to monitor the output voltage/current, adjust the behavior of the electronic circuitries and achieve a closed-loop control. Because a multilevel switched-capacitor (MSC) rectifier has output control ability, this can allow the MSC rectifier to directly charge the battery without an additional DC/DC charger on-board the device.