US 12,136,835 B2
Electronic device and method for confirming power reception device by electronic device
Yunjeong Noh, Suwon-si (KR); Kihyun Kim, Suwon-si (KR); Dongzo Kim, Suwon-si (KR); Jihye Kim, Suwon-si (KR); Keyic Son, Suwon-si (KR); Taehyeon Yu, Suwon-si (KR); Kyungmin Lee, Suwon-si (KR); Hyungkoo Chung, Suwon-si (KR); and Mincheol Ha, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 6, 2023, as Appl. No. 18/178,545.
Application 18/178,545 is a continuation of application No. PCT/KR2021/009345, filed on Jul. 20, 2021.
Claims priority of application No. 10-2020-0118668 (KR), filed on Sep. 15, 2020.
Prior Publication US 2023/0208208 A1, Jun. 29, 2023
Int. Cl. H02J 50/80 (2016.01); H01F 38/14 (2006.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H02J 50/90 (2016.01)
CPC H02J 50/80 (2016.02) [H01F 38/14 (2013.01); H02J 50/12 (2016.02); H02J 50/402 (2020.01); H02J 50/90 (2016.02)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a coil;
a power conversion circuit configured to receive a direct current (DC) power, convert the DC power into an alternating current (AC) power, and output the AC power to the coil; and
a processor,
wherein the processor is configured to:
apply, to the coil, a ping signal in which a ping power duration having a plurality of ping power levels increasing in stages is repeated periodically,
identify a signal strength packet (SSP) signal in response to the ping signal, and
perform a wireless power transfer operation through the coil based on a ping power level at which the SSP signal is identified from among the plurality of ping power levels.