Battery voltage measurement system and method thereof
First Claim
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.
2 Assignments
0 Petitions
Accused Products
Abstract
A battery voltage measurement system is disclosed. The system includes a measurement unit, a calibration unit, and a control unit. The calibration unit is coupled between the measurement unit and a battery, for providing several test voltages to the measurement unit. The control unit is coupled to the calibration unit and the measurement unit, for controlling the calibration unit and for receiving an output voltage of the measurement unit. Under a calibration mode, the calibration unit outputs 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. Under a measurement mode, the calibration unit transmits a 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 accurate value of the battery voltage.
6 Citations
13 Claims
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1. A battery voltage measurement system suitable for measuring a battery voltage of a battery, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A battery voltage measurement method, comprising:
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providing a plurality of test voltages to a measurement unit in sequence; calculating a calibration value according to a relation between the test voltages and an output voltage of the measurement unit; and transmitting a battery voltage to the measurement unit for measuring the battery voltage, and calibrating the output voltage of the measurement unit according to the calibration value.
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Specification