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. 07, 2020
Filed:
Nov. 07, 2016
Koninklijke Philips N.v., Eindhoven, NL;
Neil Francis Joye, Waalre, NL;
Klaas Jacob Lulofs, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A power transmitter () for inductively transferring power to a power receiver () comprises a resonance circuit () comprising a transmitter coil () for generating a power transfer signal. A sampler () samples a current through, or voltage over, the transmitter coil (). A message receiver () receives messages load modulated onto the power transfer signal based on the samples. A driver () generates a drive signal for the resonance circuit () and a resonance modification circuit () reduces the resonance frequency of the resonance circuit () by slowing a state change for a resonating component of the resonance circuit () for a fractional time interval of the cycles of the drive signal. A sample time controller () controls the sample times in response to at least one of start-times and end-times of the fractional time intervals, and specifically may set the sample times to be within the fractional time intervals.