US 12,272,964 B2
Tunable electrodynamic wireless power receivers
David P. Arnold, Gainesville, FL (US); Alexandra Garraud, Gainesville, FL (US); and Nicolas Garraud, Gainesville, FL (US)
Assigned to University of Florida Research Foundation, Inc., Gainesville, FL (US)
Appl. No. 17/776,925
Filed by University of Florida Research Foundation, Inc., Gainesville, FL (US)
PCT Filed Nov. 12, 2020, PCT No. PCT/US2020/060200
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/101784, PCT Pub. Date May 27, 2021.
Claims priority of provisional application 62/936,792, filed on Nov. 18, 2019.
Prior Publication US 2022/0399755 A1, Dec. 15, 2022
Int. Cl. H01F 38/14 (2006.01); H02J 5/00 (2016.01); H02J 50/10 (2016.01); H02J 50/12 (2016.01)
CPC H02J 50/12 (2016.02) 20 Claims
OG exemplary drawing
 
1. A tunable wireless power transfer receiver system, comprising:
a receiver that converts energy from a time-varying magnetic field using electromechanical conversion, wherein the receiver comprises a magnet that rotates or oscillates based on the time-varying magnetic field to generate electrical energy in the receiver;
a sensing device that detects one or more operational parameter of the receiver; and
a tuning device of the receiver comprising: a tuning magnet that is part of the receiver, wherein the tuning magnet is positioned with a particular orientation and at a particular distance relative to the magnet of the receiver to provide a tuning action of a control mechanism, the tuning magnet being magnetized in a direction opposite of the magnet, wherein the tuning action is initiated based at least in part on the one or more operational parameter of the receiver.