Samsung Sdi Co., Inc.

Seunglim Choi

Gilchoun Yeom

Hyeoncheol Jeong

Youngjin Lee

Buangho Park

Jaeseung Kim

Kwanil Oh

Ji-Hoon Kim

Sanggu Lee

Woojoon Chung

Taejong Lee

Provided is a method of controlling a battery pack, and a battery pack controlled by the method. A battery pack includes a plurality of slave battery modules, each of the slave battery modules including a battery that includes at least one battery cell and a slave controller that is configured to control charge and discharge of the battery, a master battery module including a master controller that is configured to control the slave controller, and a communication cable having formed thereon a first port to which the master controller is connected and a plurality of second ports to which the slave controller is connected. The first port includes an identification terminal configured to output an identification signal which is an electrical signal corresponding to the number of the second ports. A method of controlling the battery pack is provided.

Battery pack and method for controlling battery pack

A voltage equalizer includes: first, second, and third junction terminals respectively connected to a positive electrode of a first battery module, a positive electrode of a second battery module, and negative electrodes of the first and second battery modules; an equalizer circuit connected between the first and second junction terminals, and the equalizer forming a current path between the first and second junction terminals; a first indicator having a first displaying state that changes according to a voltage difference between the first and second junction terminals; a first comparator for outputting a first output voltage according to an input voltage that is input in proportion to a voltage between the first and third junction terminals; and a second indicator having a second displaying state that changes according to the first output voltage of the first comparator.

Voltage equalizing device

There is provided a power conversion apparatus including first to fifth nodes. The power conversion apparatus includes: an inverter including a first switch between the first and second nodes, a second switch between the first and third nodes, a third switch between the second and fourth nodes, and a fourth switch between the third and fourth nodes; a filter including an inductor connected between the second and fifth nodes and a capacitor connected between the fifth and third nodes; and a current sensor configured to sense resultant current, which is the sum of inductor current flowing in the inductor and output current, wherein the output current is output to a load connected between the third and fifth nodes.

Power conversion apparatus and uninterruptible power supply comprising same

A battery pack includes a battery to supply power for a device and a battery management system (BMS) to manage the battery. A control current from the battery to the BMS is to be blocked based on a turn-off command.

Battery pack and method of driving the same

Growing community of inventors

Yongin-si, South Korea

Seunglim Choi