公开(公告)号：US11342796B2

公开(公告)日：2022-05-24

申请号：US16125328

申请日：2018-09-07

Applicant: Google LLC

Inventor： Qi Tian ,  Veera Venkata Siva Nagesh Polu ,  Liang Jia ,  Liyu Yang ,  Jae-won Hwang ,  Rahul Apte ,  Srikanth Lakshmikanthan ,  Srenik Suresh Mehta ,  Robert Thomas Shone

IPC: H02J50/60 ,  H02J50/12 ,  H02J7/04 ,  H04B5/00 ,  H02J50/90

Abstract: Methods, systems, and techniques for safely controlling wireless charging in the presence of a foreign object are presented. A method includes determining a power difference between a power transmitted by a wireless charger and a power received by an electronic device, determining a level of misalignment of the electronic device with respect to the wireless charger; estimating an amount of power difference due to the level of misalignment of the electronic device with respect to the wireless charger, adjusting a power difference threshold for the wireless charger based on the estimated amount of power difference, and controlling operation of the wireless charger based on the power difference and the adjusted power difference threshold.

公开(公告)号：US20200083754A1

公开(公告)日：2020-03-12

申请号：US16125328

申请日：2018-09-07

Applicant: Google LLC

Inventor： Qi Tian ,  Veera Venkata Siva Nagesh Polu ,  Liang Jia ,  Liyu Yang ,  Jae-won Hwang ,  Rahul Apte ,  Srikanth Lakshmikanthan ,  Srenik Suresh Mehta ,  Robert Thomas Shone

IPC: H02J50/60 ,  H02J50/12 ,  H02J7/04 ,  H02J50/90 ,  H04B5/00

Abstract: Methods, systems, and techniques for safely controlling wireless charging in the presence of a foreign object are presented. A method includes determining a power difference between a power transmitted by a wireless charger and a power received by an electronic device, determining a level of misalignment of the electronic device with respect to the wireless charger; estimating an amount of power difference due to the level of misalignment of the electronic device with respect to the wireless charger, adjusting a power difference threshold for the wireless charger based on the estimated amount of power difference, and controlling operation of the wireless charger based on the power difference and the adjusted power difference threshold.