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:
Apr. 08, 2025
Filed:
Feb. 09, 2022
The Governing Council of the University of Toronto, Toronto, CA;
Eleappower Ltd., Toronto, CA;
Zhichao Luo, Toronto, CA;
Shuang Nie, Toronto, CA;
Mehanathan Pathmanathan, Toronto, CA;
Peter Waldemar Lehn, Toronto, CA;
INNOVATIONS & PARTNERSHIPS OFFICE UNIVERSITY OF TORONTO, Toronto, CA;
ELEAPPOWER LTD., Toronto, CA;
Abstract
There is described a wireless power transfer system utilizing a new excitation-quadrature-quadrature transmitter pad which includes one excitation coil and at least two decoupled quadrature auxiliary coils. A described resonant tank design method is proposed for constant-current charging and zero phase angle conditions. When there is a lateral misalignment in the receiver pad, the auxiliary coil that is better coupled with the receiver pad conducts more current than the more distant auxiliary coil does, reducing the leakage magnetic field in the surrounding area and/or improving transmission efficiency.