Invention Grant
- Patent Title: Wireless charging transmitter with foreign object and living object detection systems
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Application No.: US15602565Application Date: 2017-05-23
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Publication No.: US10256674B2Publication Date: 2019-04-09
- Inventor: Bernward Dimke , Milenko Stamenic
- Applicant: QUALCOMM Incorporated
- Applicant Address: US MA Watertown
- Assignee: WiTricity Corporation
- Current Assignee: WiTricity Corporation
- Current Assignee Address: US MA Watertown
- Agency: Hunter Clark PLLC
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H02J50/60 ; B60L11/18 ; H02J7/02 ; H02J50/12

Abstract:
Techniques for detecting foreign objects in a charging path of a wireless power transfer system are disclosed. An example apparatus for detecting a presence of a foreign object includes a foreign object detection (FOD) system, a living object protection (LOP) system, a control circuit operably coupled to the FOD system and the LOP system and configured to detect a change in one or more power transfer parameters, perform a calibration procedure on the FOD system based on the change in the one or more power transfer parameters, operate the LOP system in a high sensitivity mode concurrently with the calibration procedure, and operate the LOP system in a standard detection mode upon completing the calibration procedure.
Public/Granted literature
- US20180342907A1 WIRELESS CHARGING TRANSMITTER WITH FOREIGN OBJECT AND LIVING OBJECT DETECTION SYSTEMS Public/Granted day:2018-11-29
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