Samsung Sdi Co., Inc.

Jaewoo Kam

Gilchoun Yeom

Youngjin Lee

Hyeoncheol Jeong

Sanggu Lee

Hyomin Kim

Yoonphil Eo

Dongsu Ko

Junho Yun

Jae Shik Yoo

A charging control device includes: a battery state detector configured to detect a cell voltage of at least one cell of a battery and a charging current between the battery and a charging device; and a controller configured to perform a cell over voltage protection (COVP) function on the battery based on a cell over voltage protection voltage, and to vary the cell over voltage protection voltage in response to the charging current.

Charging control device and method

A battery module system includes a master module and at least one slave module that are connected in series. An isolated communication is performed between the master module and the at least one slave module.

Battery module system

A slave module receives a first wake-up signal from an adjacent previous module to perform a wake-up operation and to transmit a second wake-up signal to an adjacent subsequent module. The slave module includes: an analog front end (AFE) including a first terminal and a second terminal, the AFE may be woken up by receiving the first wake-up signal through the first terminal and may output a first voltage through the second terminal in a woken up state; a processor including a third terminal electrically connected to the first terminal, a fourth terminal electrically connected to the second terminal, and a fifth terminal electrically connected to a second slave terminal. The processor may boot up when the first voltage is applied to the fourth terminal, may output a second voltage to the third terminal after being booted up, and may output the second wake-up signal to the fifth terminal.

Slave module

Growing community of inventors

Yongin-si, South Korea

Jaewoo Kam