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.

公开(公告)号：US10237830B1

公开(公告)日：2019-03-19

申请号：US15692546

申请日：2017-08-31

Applicant: Google LLC

Inventor： Liang Jia ,  Srikanth Lakshmikanthan ,  Eklavya Singh ,  Enrique Romero Pintado

IPC: H04W52/02 ,  G01R31/36

Abstract: Methods, systems, and devices, including machine-readable media, for dynamic battery power management are disclosed. In some implementations, an electronic device that is powered by a battery senses a voltage provided by the battery and an electric current provided by the battery. The electronic device determines a present state of the battery. The electronic device determines a current limit for the electronic device based on the sensed voltage and electric current and the determined present state of the battery. The electronic device manages power use of the electronic device to maintain electric current draw from the battery at or below the electric current limit.