Samsung Sdi Co., Inc.

Myungsang Lee

Kyongpil Jin

Provided are a communication system of a battery pack, and a battery pack including the communication system. According to an embodiment of the present disclosure, the communication system includes a transmitter configured to transmit a communication signal from the battery pack to an external device and a receiver configured to receive a communication signal from the external device, wherein the transmitter includes: a first transistor configured to perform a switching operation in response to a first communication signal output from a battery management system (BMS) of the battery pack; a second transistor configured to perform a switching operation in response to the switching operation of the first transistor; and a first diode configured to transmit the first communication signal to the external device in response to the switching operations of the first and second transistors, wherein the receiver includes: a third transistor configured to perform a switching operation in response to a second communication signal received from the external device; a fourth transistor configured to perform a switching operation in response to the switching operation of the third transistor; and a second diode configured to transmit the second communication signal to the BMS in response to the switching operations of the second and fourth transistors.

Communication system of battery pack and battery pack comprising same

A battery pack includes a battery including at least one battery cell, a terminal portion electrically connected to the battery and including a first pack terminal connected to an external load and a second pack terminal, a first switch configured to switch a discharge current of the battery according to a first control signal, a second switch configured to open or close according to a second control signal, and to open the first switch that is turned on by the first control signal, by a voltage of the first pack terminal or the second pack terminal, and a battery manager configured to output the first control signal and the second control signal.

Battery pack and vacuum cleaner including the same

A battery pack includes a battery and a battery manager. The battery includes a plurality of battery cells. The battery manager includes a mode receiver that receives signals from an electronic device through an input terminal. The signals are indicative of respective modes of operation of the electronic device.

Growing community of inventors

Yongin-si, South Korea

Myungsang Lee