Battery module, computer system having the same, and control method of the computer system
First Claim
1. A computer system, comprising:
- a device which operates according to a clock frequency;
a battery unit, which comprises a plurality of battery cells, for supplying power to the device;
a temperature sensor provided at a location outside of the battery unit for detecting a temperature of the battery cells;
a current sensor coupled to the battery unit for detecting a value of a current supplied from the battery unit to the device;
a comparator configured to compare the detected temperature with a first reference value or the detected current value with a second reference value; and
a controller configured to decrease the clock frequency if the detected temperature is greater than the first reference value or if the detected current value is greater than the second reference value,wherein the comparing of the detected temperature with the first reference value comprises converting the detected temperature to a first voltage level,wherein the comparing of the detected current value with the second reference value comprises converting the detected current value to a second voltage level, andwherein the first reference value and the second reference value which are input to the comparator comprise a same reference voltage level.
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Abstract
A computer system is provided. The computer system includes a device which operates according to a clock frequency, a battery unit, which comprises a plurality of battery cells, for supplying power to the device, a temperature sensor provided at a location outside of the battery unit for detecting a temperature of the battery cells, a current sensor coupled to the battery unit for detecting a value of a current supplied from the battery unit to the device, and a controller, which is coupled to the temperature sensor and the current sensor, configured to control the clock frequency of the device according to the detected temperature and the detected current value, wherein the controller is configured to decrease the clock frequency if the detected temperature is greater than a first reference value or if the detected current value is greater than a second reference value.
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Citations
18 Claims
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1. A computer system, comprising:
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a device which operates according to a clock frequency; a battery unit, which comprises a plurality of battery cells, for supplying power to the device; a temperature sensor provided at a location outside of the battery unit for detecting a temperature of the battery cells; a current sensor coupled to the battery unit for detecting a value of a current supplied from the battery unit to the device; a comparator configured to compare the detected temperature with a first reference value or the detected current value with a second reference value; and a controller configured to decrease the clock frequency if the detected temperature is greater than the first reference value or if the detected current value is greater than the second reference value, wherein the comparing of the detected temperature with the first reference value comprises converting the detected temperature to a first voltage level, wherein the comparing of the detected current value with the second reference value comprises converting the detected current value to a second voltage level, and wherein the first reference value and the second reference value which are input to the comparator comprise a same reference voltage level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power control method of a computer system that comprises a battery unit and a device operating according to a clock frequency, the power control method comprising:
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detecting, by a temperature sensor provided at a location outside of the battery unit, a temperature of the battery unit; detecting a value of a current supplied from the battery unit to the device; comparing, by a comparator, the detected temperature with a first reference value or the detected current value with a second reference value; and decreasing the clock frequency if the detected temperature is greater than the first reference value or if the detected current value is greater than the second reference value, wherein the comparing of the detected temperature with the first reference value comprises converting the detected temperature to a first voltage level, wherein the comparing of the detected current value with the second reference value comprises converting the detected current value to a second voltage level, and wherein the first reference value and the second reference value which are input to the comparator comprise a same reference voltage level. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A computer system, comprising:
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a device which operates according to a clock frequency; a battery unit, which comprises a plurality of battery cells, for supplying power to the device; a temperature sensor provided at a location outside of the battery unit for detecting a temperature of the battery cells; a current sensor for detecting a value of a current supplied from the battery unit to the device; a comparator configured to compare the detected temperature with a first reference point or the detected current value with a second reference point; and a controller, configured to; output a first clock frequency control signal to the device, if the detected temperature is greater than the first reference point or if the detected current value is greater than the second reference point; and output a second clock frequency control signal to the device, if the detected temperature is maintained for a preset time at a temperature that is lower than the first reference point, after the clock frequency is decreased, wherein the first reference value and the second reference value which are input to the comparator comprise a same reference voltage level, wherein the comparing of the detected temperature with the first reference point comprises converting the detected temperature to a first voltage level, wherein the comparing of the detected current value with the second reference point comprises converting the detected current value to a second voltage level, and wherein the device is configured to; enable a throttling operation for decreasing the clock frequency if the first clock frequency control signal outputted from the controller is received, and disable the throttling operation for decreasing the clock frequency if the second clock frequency control signal outputted from the controller is received.
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16. A computer system, comprising:
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a device which operates according to a clock frequency; a battery unit, which comprises a plurality of battery cells, for supplying power to the device; a temperature sensor provided at a location outside of the battery unit for detecting a temperature of the battery cells; a current sensor coupled to the battery unit for detecting a value of a current supplied from the battery unit to the device; a comparator configured to compare the detected temperature with a first reference value or the detected current value with a second reference value; and a controller is further configured to decrease the clock frequency if the detected temperature is greater than the first reference value or if the detected current value is greater than the second reference value, wherein the first reference value and the second reference value respectively comprise a first reference voltage level and a second reference voltage level that are input to the comparator as a same reference voltage level, wherein the comparing of the detected temperature with the first reference value comprises converting the detected temperature to a first voltage level, wherein the comparing of the detected current value with the second reference value comprises converting the detected current value to a second voltage level, wherein the first reference voltage level is set at a level corresponding to a critical temperature at which a consumable power output from the battery unit is not higher than a maximum consumable power, wherein the second reference voltage level is set at a level corresponding to a critical current at which the consumable power output from the battery unit is not higher than the maximum consumable power, and wherein the controller is configured to increase the clock frequency if the detected temperature is maintained for a preset time at a temperature that is lower than the first reference value, after the clock frequency is decreased.
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17. A power control method of a computer system that comprises a battery unit and a device operating according to a clock frequency, the power control method comprising:
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detecting, by a temperature sensor provided at a location outside of the battery unit, a temperature of the battery unit; detecting a value of a current supplied from the battery unit to the device; comparing, by a comparator, the detected temperature with a first reference value or the detected current value with a second reference value; decreasing, the clock frequency if the detected temperature is greater than the first reference value or if the detected current value is greater than the second reference value; and increasing the clock frequency if the detected temperature is maintained for a preset time at a temperature that is lower than the first reference value, after the clock frequency is decreased, wherein the first reference value and the second reference value comprise a first reference voltage level and a second reference voltage level, respectively, that are input to the comparator as a same voltage level, wherein the comparing of the detected temperature with the first reference value comprises converting the detected temperature to a first voltage level, wherein the comparing of the detected current value with the second reference value comprises converting the detected current value to a second voltage level, wherein the first reference voltage level is set at a level corresponding to a critical temperature at which a consumable power output from the battery unit is not higher than a maximum consumable power, and wherein the second reference voltage level being set at a level corresponding to a critical current at which the consumable power output from the battery unit is not higher than the maximum consumable power.
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18. A computer system, comprising:
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a device which operates according to a clock frequency; a battery unit, comprising a plurality of battery cells, for supplying power to the device; a temperature sensor provided at a location outside of the battery unit for detecting a temperature of the plurality of battery cells; a current sensor for detecting a value of a current supplied from the battery unit to the device; a comparator configured to compare the detected temperature with a first reference point or the detected current value with a second reference point; and a controller configured to; output a first clock frequency control signal to the device if the detected temperature is greater than the first reference point or if the detected current value is greater than the second reference point, and output a second clock frequency control signal to the device, if the detected temperature is maintained for a preset time at a temperature that is lower than the first reference point, after the clock frequency is decreased, wherein the first reference point and the second reference point respectively comprise a first reference voltage level and a second reference voltage level that are input to the comparator as a same voltage level, wherein the comparing of the detected temperature with the first reference point comprises converting the detected temperature to a first voltage level, wherein the comparing of the detected current value with the second reference point comprises converting the detected current value to a second voltage level, wherein the first reference voltage level is set at a level corresponding to a critical temperature at which a consumable power output from the battery unit is not higher than a maximum consumable power, wherein the second reference voltage level is set at a level corresponding to a critical current at which the consumable power output from the battery unit is not higher than the maximum consumable power, and wherein the device is configured to; enable a throttling operation for decreasing the clock frequency if the first clock frequency control signal output from the controller is received, and disable the throttling operation for decreasing the clock frequency if the second clock frequency control signal output from the controller is received.
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Specification