US 12,074,469 B2
Electronic device for charging battery based on direct charging and operating method of the electronic device
Sejong Park, Anyang-si (KR); Minkyu Kwon, Hwaseong-si (KR); Taejeong Kim, Hwaseong-si (KR); Junhan Bae, Seoul (KR); Suji Lee, Incheon (KR); and Hyeonje Choe, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 6, 2021, as Appl. No. 17/340,045.
Claims priority of application No. 10-2020-0097537 (KR), filed on Aug. 4, 2020.
Prior Publication US 2022/0045538 A1, Feb. 10, 2022
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/007182 (2020.01) [H02J 7/00718 (2020.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a charging integrated circuit (IC) including a direct charging circuit configured to charge a battery; and
an application processor configured to issue a request to output a maximum voltage corresponding to a target current to an external power source, perform a ramp-up operation on a charging current input to the charging IC based on the maximum voltage, compensate for a difference between the charging current and the target current in response to the charging current entering a constant current period, and enter a sleep mode during the constant current period in response to the charging current reaching the target current,
wherein the ramp-up operation includes increasing the charging current from a first positive current at a first time to a second positive current at a subsequent second time, and
wherein the second positive current is equivalent to the target current corresponding to the maximum voltage.