US 12,431,720 B2
Charger integrated circuit for charging series battery device and electronic device including same
Yonghwan Cho, Suwon-si (KR); Sungwoo Lee, Hwaseong-si (KR); Hyoungseok Oh, Seoul (KR); Daewoong Cho, Suwon-si (KR); and Jungwook Heo, Hwaseong-si (KR)
Assigned to Samsung Electronics Co., Ltd., (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Sep. 27, 2022, as Appl. No. 17/953,755.
Claims priority of application No. 10-2021-0152781 (KR), filed on Nov. 9, 2021; and application No. 10-2022-0015949 (KR), filed on Feb. 8, 2022.
Prior Publication US 2023/0142751 A1, May 11, 2023
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/0019 (2013.01) [H02J 7/007182 (2020.01); H02J 2207/20 (2020.01); H02J 2207/40 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A charger integrated circuit configured to charge a battery device including a first battery and a second battery connected in series, the charger integrated circuit comprising:
a direct charger configured to generate a first charging current and a first current based on an input voltage received from an input terminal, the first charging current used to charge the battery device, the first current used to generate a first system current, and the first system current provided to a system load;
a buck converter configured to generate a second current and a second system current based on the input voltage, the second current used to generate a second charging current, the second charging current used to charge the battery device, and the second system current provided to the system load;
a switched capacitor configured to generate the first system current based on the first current, and to generate the second charging current based on the second current; and
a linear charger configured to provide the first charging current and the second charging current to the battery device.