Back to results
US 2019/0379424 A1Published application
Device and system for power transmission
AssigneeSony Corporation
InventorsOSAMU KOZAKAI, TAKAAKI HASHIGUCHI
Life of this patent
Estimating the term…
Abstract
A device for power transmission includes a power transmission section and a detection section. The power transmission section is configured to transmit an electric power wirelessly. The detection section is operatively connected to the power transmission section and configured to detect an object within a range from the power transmission section based on a change in impedance in vicinity of the power transmission section.
Claims1
A power transmitter, comprising:
- a power transmission section configured to transmit an electric power wirelessly, wherein the power transmission section comprises a coil;
- a resistor mounted in series with the coil;
- and
- a detection section configured to measure a voltage across the coil and detect a foreign object within a range from the power transmission section based on the voltage.
1 more element
Dependencies are inferred from the claim text.