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:
Jul. 30, 2024
Filed:
Sep. 21, 2020
Enersys Delaware Inc., Reading, PA (US);
Damien Brelivet, Arras, FR;
Maxime Roudaut, Arras, FR;
Patrick Dehem, Vitry en Artois, FR;
Paul Antoine Gori, Arras, FR;
David Letombe, Arras, FR;
EnerSys Delaware Inc., Reading, PA (US);
Abstract
A method of controlling a wireless power transfer system comprising a primary stage and a secondary stage is provided. The primary stage comprises a DC/DC converter configured to generate a DC output, a DC/AC inverter configured to receive the DC output and to generate an AC output according to a variable switching frequency, and a primary coil configured to transfer power to the secondary stage in response to the DC/AC inverter generating the AC output. The switching frequency of the DC/AC inverter is adjusted to cause a phase angle between an input current and an input voltage of the primary coil to be less than or equal to a predetermined threshold. The DC output of the DC/DC converter is controlled to cause a desired amount of power to be transferred from the primary coil at the adjusted switching frequency.