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:
Sep. 09, 2025
Filed:
Aug. 09, 2024
Microchip Technology Incorporated, Chandler, AZ (US);
Santosh Bhandarkar, Chandler, AZ (US);
Microchip Technology Incorporated, Chandler, AZ (US);
Abstract
A foreign object may be detected by measuring inductance and resistance of a transmitter coil using a meter circuit when a plurality of currents are applied to the transmitter coil when the transmitter coil is in standalone conditions and when a receiver coil is mated to the transmitter coil without a foreign object present. A simulation model is generated based on the measured inductance and resistance of the transmitter coil and receiver coil and comprising a characteristic curve as a function of the plurality of currents applied to the transmitter coil. With the receiver coil mated to the transmitter coil, a foreign object may be detected by measuring a power loss from the transmitter coil to the receiver coil based on the simulation model.