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. 03, 2019
Filed:
Jul. 29, 2016
Massachusetts Institute of Technology, Cambridge, MA (US);
Nachiket V. Desai, Cambridge, MA (US);
Anantha P. Chandrakasan, Belmont, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Described is a receiver for improving end-to-end efficiency in a device-to-device wireless charging system using resonant energy transfer through an inductive link. The receiver includes an efficiency controller which dynamically tracks a maximum efficiency point and controls an impedance between an inductive coupling of the receiver and a receiver rectifier circuit such that an impedance seen by the inductive coupling is an impedance which maximizes (or nearly maximizes) efficiency of the inductively coupled wireless power transfer operation.