US 12,334,753 B2
Method of detecting foreign object and electronic device
Mingi Song, Gyeonggi-do (KR); Kyungmin Park, Gyeonggi-do (KR); and Changhak O, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd, Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Aug. 23, 2022, as Appl. No. 17/893,390.
Application 17/893,390 is a continuation of application No. PCT/KR2022/011896, filed on Aug. 10, 2022.
Claims priority of application No. 10-2021-0107015 (KR), filed on Aug. 13, 2021.
Prior Publication US 2023/0052693 A1, Feb. 16, 2023
Int. Cl. H02J 50/60 (2016.01); G01R 19/165 (2006.01); H02J 7/00 (2006.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01); H02M 7/219 (2006.01)
CPC H02J 50/60 (2016.02) [G01R 19/16576 (2013.01); H02J 7/0048 (2020.01); H02J 7/00712 (2020.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02); H02J 2207/20 (2020.01); H02M 7/219 (2013.01)] 20 Claims
OG exemplary drawing
 
11. A method in an electronic device, comprising:
receiving, via wireless power transceiver circuitry, first detecting power from an external electronic device,
when the wireless power transceiver circuitry is operating in a reception mode, determine, via a processor, whether a reception voltage generated by the received first detecting power is higher than a first predetermined voltage value,
based on detecting that the reception voltage is higher than the first predetermined voltage value, supplying power, via a charging circuit, from the battery to the wireless power transceiver circuitry,
outputting, via a wireless power transfer (WPT) coil, foreign object detecting power based on the supplied power, and
based on detecting an electrical change in the foreign object detecting power caused by presence of a foreign object, determine, via the processor, that an error has occurred.