Patent ID: 8659299
Filing Date: 2014-02-25
Classification: G01R

Abstract:
1. A battery voltage measurement system suitable for measuring a battery voltage of a battery, comprising: a measurement unit for measuring the battery voltage; a calibration unit coupled between the measurement unit and the battery, for providing a plurality of test voltages to the measurement unit; and a control unit coupled to the measurement unit and the calibration unit, for controlling the calibration unit and receiving an output voltage of the measurement unit; wherein the battery voltage measurement system has a calibration mode and a measurement mode, and under the calibration mode, the calibration unit outputs the test voltages to the measurement unit, and the control unit calculates a calibration value according to a relation between the test voltages and the output voltage of the measurement unit; and under the measurement mode, the calibration unit transmits the battery voltage to the measurement unit, and the control unit calibrates the output voltage of the measurement unit according to the calibration value for acquiring the battery voltage.