Samsung Electronics Co., Ltd.

Yonghwan Cho

Sungwoo Lee

Hyoungseok Oh

Minkyu Kwon

Jungwook Heo

Daewoong Cho

A charger integrated circuit is configured to charge a battery device including a first battery and a second battery connected in series. The circuit includes 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 current used to generate a first system current, and 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 circuit includes 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.

Charger integrated circuit for charging series battery device and electronic device including same

A charger integrated circuit for charging a battery device including a first battery and a second battery includes; a first charger configured to generate a first charging current from an input voltage when the input voltage is received from an input voltage terminal, and a battery switch configured to provide the first charging current to the battery device, the battery switch comprising a plurality of transistors for connecting the first battery and the second battery in series or in parallel based on the input voltage, a first both-end voltage of the first battery and a second both-end voltage of the second battery.

Growing community of inventors

Suwon-si, South Korea

Yonghwan Cho