Battery management system, method of controlling the same, and energy storage system including the battery management system

摘要

A battery management system (BMS), a method of controlling the same, and an energy storage system including the battery management system. The BMS may reduce costs by stably supplying power to an insulating unit in a power-saving mode even when an isolator has no built-in direct current (DC)-DC converter.

主权项

1. A battery management system comprising:
a battery cell; an analog front end coupled to a first ground; a computer coupled to a second ground; an insulating unit for insulating the analog front end from the computer; and a first power switching unit for receiving a control signal from the computer through the insulating unit, controlling a distribution of power from the battery cell according to the control signal, and controlling a supply of the power to the insulating unit, wherein the first power switching unit comprises:
a transistor configured to be turned on or off according to the control signal;a first resistor and a second resistor coupled to a first terminal of the transistor for distributing a voltage of the battery cell; andwherein the battery management system further comprises a third resistor coupled between a second terminal of the transistor and an output terminal of the insulating unit through which the control signal is output.