Battery management system and battery pack including battery management system
AssigneeSamsung SDI Co., Ltd.
InventorsJongwoon Yang, Susumu Segawa
Life of this patent
Estimating the term…
Abstract
A battery management system and a battery pack. The battery management system includes a micro computer unit including an analog-to-digital converter (ADC) to measure a battery voltage, a voltage generation unit to generate a power voltage of the ADC by using the battery voltage, a voltage measuring unit to measure the power voltage, and an error calibration unit to measure a variation of the power voltage, measured by the voltage measuring unit, by using a reference power voltage, and calibrate the battery voltage, measured by the ADC, by using the measured variation.
Claims20
A battery management system, comprising:
- a microcomputer unit (MCU) including an analog-to-digital converter (ADC) to measure a battery voltage;
- a voltage generation unit to generate a power voltage of the ADC by using the battery voltage;
- a voltage measuring unit to measure the power voltage;
- and
- an error calibration unit to measure a variation of the power voltage, measured by the voltage measuring unit, by using a reference power voltage, and to calibrate the battery voltage, measured by the ADC, by using the measured variation.
A battery pack, comprising:
- a battery including at least one battery cell;
- and
- a battery management system to measure a battery voltage of the battery, control charging/discharging according to a value of the measured battery voltage, and to shut down when a reset event occurs, the battery management system including:
- a microcomputer unit (MCU) including an analog-to-digital converter (ADC) to measure the battery voltage;
- a voltage generation unit to generate a power voltage of the ADC by using the battery voltage;
- a voltage measuring unit to measure the power voltage;
- and
- an error calibration unit to measure a variation of the power voltage measured by the voltage measuring unit by using a reference power voltage, and to calibrate the battery voltage measured by the ADC by using the measured variation.
A battery pack, comprising:
- a battery including at least one battery cell;
- and
- a battery management system to measure a battery voltage of the battery, control charging/discharging according to a value of the measured battery voltage, and to shut down when a reset event occurs, the battery management system including:
- an analog-to-digital converter (ADC) to convert the battery voltage into a digital value;
- a voltage generation unit to generate a power voltage from the battery voltage, the power voltage to power the ADC;
- a voltage measuring unit to measure the power voltage;
- and
- an error calibration unit to determine a variation of the measured power voltage by using a reference power voltage, and to adjust the digital value of the battery voltage produced by the ADC according to the determined variation.
Dependencies are inferred from the claim text.