US 12,170,447 B2
Electronic device for wirelessly charging external electronic device
Jungoh Sung, Suwon-si (KR); Juhyang Lee, Suwon-si (KR); Myungkyoon Chung, Suwon-si (KR); Youngmi Ha, Suwon-si (KR); and Hojong Kim, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 11, 2022, as Appl. No. 17/662,996.
Application 17/662,996 is a continuation of application No. 16/793,312, filed on Feb. 18, 2020, granted, now 11,374,432.
Claims priority of application No. 10-2019-0019114 (KR), filed on Feb. 19, 2019; and application No. 10-2019-0055770 (KR), filed on May 13, 2019.
Prior Publication US 2022/0271564 A1, Aug. 25, 2022
Int. Cl. H02J 50/12 (2016.01); H02J 7/02 (2016.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01)
CPC H02J 50/12 (2016.02) [H02J 7/02 (2013.01); H02J 50/80 (2016.02); H02J 50/90 (2016.02)] 6 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a housing including a first plate, a second plate spaced apart from the first plate and a side member disposed between the first plate and the second plate;
a display disposed under the first plate;
a conductive coil disposed between the display and the second plate;
a wireless charging circuitry electrically connected to the conductive coil; and
a processor operatively connected with the display and the wireless charging circuitry, wherein the wireless charging circuitry configured to:
transmit, via the conductive coil, a charging power to an external electronic device based at least in part on a power control signal being received from the external electronic device;
increase a charging frequency corresponding to the charging power based at least in part on a determination that the power control signal includes a request to reduce the charging power; and
if the charging frequency corresponding to the charging power reaches a specified frequency, maintain the charging frequency to be the specified frequency and decrease a duty cycle corresponding to the charging power.