BATTERY VOLTAGE DETECTION METHOD AND APPARATUS
First Claim
1. An apparatus for detecting rest voltage of a battery on a motherboard comprising:
- an embedded controller, a first resistor, and a second resistor;
wherein the embedded controller comprises an analog to digital (A/D) conversion terminal;
the A/D conversion terminal is electrically connected to a voltage output terminal of the battery via the first resistor;
the A/D conversion terminal is grounded via the second resistor;
the A/D conversion terminal detects a voltage value of a connection point between the first resistor and the second resistor; and
the embedded controller calculates a rest voltage value of the battery and determines whether the battery is installed on the motherboard according to the rest voltage value.
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Accused Products
Abstract
An exemplary apparatus for detecting a voltage of a battery on a motherboard includes an embedded controller, a first resistor, and a second resistor. The embedded controller includes an analog to digital (A/D) conversion terminal The A/D conversion terminal is electrically connected to a voltage output terminal of the battery via the first resistor. The A/D conversion terminal is grounded via the second resistor. The A/D conversion terminal detects a voltage value of a connection point between the first resistor and the second resistor. The embedded controller calculates the potential of the battery to determine whether the battery is installed on the motherboard according to the voltage value.
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Citations
9 Claims
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1. An apparatus for detecting rest voltage of a battery on a motherboard comprising:
an embedded controller, a first resistor, and a second resistor;
wherein the embedded controller comprises an analog to digital (A/D) conversion terminal;
the A/D conversion terminal is electrically connected to a voltage output terminal of the battery via the first resistor;
the A/D conversion terminal is grounded via the second resistor;
the A/D conversion terminal detects a voltage value of a connection point between the first resistor and the second resistor; and
the embedded controller calculates a rest voltage value of the battery and determines whether the battery is installed on the motherboard according to the rest voltage value.- View Dependent Claims (2, 3, 4, 5)
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6. A method for detecting rest voltage of a battery on a motherboard, the method comprising:
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detecting a voltage value of a connection point between a first resistor and a second resistor by an analog to digital (A/D) conversion terminal on an embedded controller; wherein embedded controller stores a rated voltage value and a final voltage value; calculating a rest voltage value of the battery according to the voltage value and resistances of the first resistor and the second resistor by the embedded controller; and determining whether the battery is installed on the motherboard according to the rest voltage value of the battery by the embedded controller; if the rest voltage value of the battery is lower than the final voltage value, the embedded controller determines the battery is not installed on the motherboard, and indicates the battery need to be installed by a display interface; if the rest voltage value of the battery is greater than the final voltage value and is less than the rated voltage value, the embedded controller determines the battery is installed on the motherboard, and indicates the rest voltage value of the battery by the display interface. - View Dependent Claims (7, 8, 9)
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Specification