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:
May. 25, 2021
Filed:
Nov. 01, 2019
Witricity Corporation, Watertown, MA (US);
Conor Rochford, Newton, MA (US);
Milisav Danilovic, Watertown, MA (US);
WITRICITY CORPORATION, Watertown, MA (US);
Abstract
Disclosed herein are systems and methods for determining a current of a resonator coil during operation of a wireless power system having the resonator coil, in which the resonator coil is coupled to a fixed capacitive network and a reactance circuit. The systems and methods can include determining a first signal which can include receiving a current in an inductor of the reactance circuit; converting the current to a voltage signal; and scaling the voltage signal. The systems and methods can include determining a second signal which can include receiving an output voltage at an output of the reactance circuit; dividing the output voltage; and integrating the divided scaled voltage to produce an inverted differentiated voltage signal. The methods can include summing the first signal and the second signal to produce a summed signal; and determining the current in the resonator coil based on the summed signal.