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:
Jun. 02, 2020
Filed:
Jan. 14, 2019
Witricity Corporation, Watertown, MA (US);
Andrew J. Campanella, Somerville, MA (US);
Herbert T. Lou, Berkeley, CA (US);
Morris P. Kesler, Bedford, MA (US);
Katherine L. Hall, Arlington, MA (US);
Ron Fiorello, Tewksbury, MA (US);
Aristeidis Karalis, Boston, MA (US);
WiTricity Corporation, Watertown, MA (US);
Abstract
This application includes a source for a wireless power transfer system including: sensing and measurement circuitry configured to process signals associated with a source resonator and a source impedance matching network including a tunable component; a PWM generator coupled with power transistors of an amplifier coupled with the source impedance matching network, wherein the PWM generator is configured to control a driving signal to drive the source resonator using the power transistors; and a controller coupled with the sensing and measurement circuitry to receive measured signals, wherein the controller is configured to control a component value or an operating point of at least one of the tunable component(s), and the controller is configured to modify operation of the PWM generator based on the measured signals to modify at least a phase of the driving signal while changing power delivered to the source resonator.