Title:
マルチコイルワイヤレス充電装置の表面からのデバイス除去の検出
Document Type and Number:
Japanese Patent JP7481777
Kind Code:
B2
Abstract:
Systems, methods and apparatus for wireless charging are disclosed. A charging device has a plurality of charging cells provided on a charging surface, a charging circuit and a controller. The controller may be configured to cause the charging circuit to provide a charging current to a resonant circuit when a receiving device is placed on the charging surface, provide a measurement slot by causing the charging circuit to decrease or terminate the charging current for a period of time and determine whether the receiving device has been removed from the charging surface based on measurement of a characteristic of the resonant circuit during the measurement slot. The characteristic of the resonant circuit may be representative of electromagnetic coupling between a transmitting coil in the resonant circuit and a receiving coil in the receiving device.
Inventors:
God Child, Eric, Heindel
Winters, John
Scott, James
Winters, John
Scott, James
Application Number:
JP2023209892A
Publication Date:
May 13, 2024
Filing Date:
December 13, 2023
Export Citation:
Assignee:
AIRA,INC.
International Classes:
H02J50/40; H02J7/00; H02J50/12; H02J50/90
Foreign References:
| US20140312836 | ||||
| US20050084754 | ||||
| US20160020642 | ||||
| US5202617 | ||||
| US20100084918 | ||||
| EP3373412A1 |
Attorney, Agent or Firm:
Kita Aoyama International Patent Attorney Corporation