Automati power supply control device and method of battery management system

Abstract

The present invention relates to an automatic power supply control device and method of a battery management system (BMS), and the automatic power supply control device of a BMS includes a converter receiving power of a battery to convert the power to power needed for a load, wherein the power input from the battery is controlled by a manual control signal (IGON), which is generated by a button operation of a user, or by a controller (MCU) of a BMS, a manual control signal generator generating the manual control signal (IGON), which is generated by the button operation of the user, for controlling the driving of the converter, a control signal conversion part configured to, when the manual control signal (IGON) is activated and a predetermined time has elapsed, transmit a signal (NIG), which indicates that the manual control signal (IGON) is activated, to the controller (MCU) and to inactivate the manual control signal (IGON), and the controller (MCU) driven by output power of the converter, and configured to activate a signal (MWAKEUP) for controlling the driving of the converter and to control power supplied to the load when receiving the signal (NIG) from the control signal conversion part. According to the present invention, control of power supply according to a condition of the load is not performed by the user, and the controller in a BMS may automatically control the battery, and since current consumption of the battery can be controlled, and quick discharge can be prevented, energy efficiency of the battery may be improved, complete discharge of the battery may be prevented, and thus a lifespan of the battery may be extended.

Dependencies are inferred from the claim text.