公开(公告)号：US11575267B2

公开(公告)日：2023-02-07

申请号：US17011065

申请日：2020-09-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungwoo Lee ,  Minkyu Kwon ,  Hyoungseok Oh ,  Yonghwan Cho

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/48

Abstract: 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.

公开(公告)号：US11552676B2

公开(公告)日：2023-01-10

申请号：US17014568

申请日：2020-09-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minkyu Kwon ,  Guntak Kwak

IPC: H04B3/54 ,  H04R1/10 ,  H02J7/00 ,  H02J50/80

Abstract: A mobile device includes; a power line communication ( ) module that communicates data with an external device via a power line, receives a first preamble signal from the external device during a first preamble interval, receives a voltage signal as the data during a data reception interval following the first preamble interval, and demodulates the voltage signal to provide a demodulated voltage signal, a frequency/duty detector that detects a frequency and a duty of the first preamble signal, and a control circuit that performs signal a data determination operation on a demodulated voltage signal during a data period and using the first detected frequency and the first detected duty.