US 12,463,468 B2
System and method for wireless power transmission
Wendy Tran Pham, Toronto (CA); Samuel Cheng, Toronto (CA); Tomasz Piotrowski, Toronto (CA); Abdul Haleem Ahamed Koya, Oakville (CA); and Phil Lam, Toronto (CA)
Assigned to CANADIAN TIRE CORPORATION, LIMITED, Toronto (CA)
Filed by CANADIAN TIRE CORPORATION, LIMITED, Toronto (CA)
Filed on May 14, 2024, as Appl. No. 18/664,038.
Claims priority of provisional application 63/466,754, filed on May 16, 2023.
Prior Publication US 2024/0388136 A1, Nov. 21, 2024
Int. Cl. H02J 50/27 (2016.01); H02J 50/00 (2016.01); H05B 47/19 (2020.01)
CPC H02J 50/27 (2016.02) [H02J 50/005 (2020.01); H05B 47/19 (2020.01)] 23 Claims
OG exemplary drawing
 
1. A system for wireless power transmission, the system comprising:
at least one radio frequency transmitter configured to emit radio frequency waves, the at least one radio frequency transmitter comprising a first radio frequency transmitter and a second radio frequency transmitter;
at least one radio frequency receiver remote from the at least one radio frequency transmitter, the at least one radio frequency receiver comprising:
at least one antenna configured to wirelessly receive the radio frequency waves from the at least one radio frequency transmitter, and
at least one rectifier electrically coupled to the at least one antenna and configured to convert the radio frequency waves to direct current (DC) power,
wherein the at least one radio frequency receiver comprises a first radio frequency receiver and a second radio frequency receiver positioned along a transmission path of one of the first radio frequency transmitter and the second radio frequency transmitter, the first radio frequency receiver interposed between the second radio frequency receiver and the one of the first radio frequency transmitter and the second radio frequency transmitter, and
further wherein the first radio frequency receiver receives from the one of the first radio frequency transmitter and the second radio frequency transmitter a lower amount of radio frequency energy than the second radio frequency receiver, and the first radio frequency receiver and the second radio receiver receive a same amount of radio frequency energy from the other one of the first radio frequency transmitter and the second radio frequency transmitter; and
at least one load electrically coupled to the at least one radio frequency receiver, the at least one load configured to receive from the at least one rectifier the DC power and to operate based thereon.