Battery charge temperature control
First Claim
Patent Images
1. A device, comprising:
- a memory to store a plurality of tables, each of the table including a plurality of entries, each of the entries storing a temperature parameter and a current cutoff parameter, each of the tables corresponding to a different battery type and a different battery manufacturer;
processing logic to;
determine a battery type and a battery manufacturer associated with a rechargeable battery provided within the device, andselect one of the tables based on the determined battery type and the determined battery manufacturer associated with the battery;
a temperature monitor to determine a temperature associated with the battery; and
a charger to;
determine a current cutoff parameter from the selected table based on the determined temperature,supply current to the battery,determine when the supplied current reaches a value corresponding to the current cutoff parameter, andcease further supply of the supplied current to the battery when the supplied current reaches the value corresponding to the current cutoff parameter.
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Abstract
A system for charging a rechargeable battery supplies a current to the battery to charge the battery. The system determines a temperature associated with the battery and identifies a cutoff parameter based on the determined temperature. The system determines when the supplied current matches a value corresponding to the cutoff parameter and stops further supply of the supplied current to the battery when the supplied current matches the value corresponding to the current cutoff parameter.
14 Citations
19 Claims
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1. A device, comprising:
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a memory to store a plurality of tables, each of the table including a plurality of entries, each of the entries storing a temperature parameter and a current cutoff parameter, each of the tables corresponding to a different battery type and a different battery manufacturer; processing logic to; determine a battery type and a battery manufacturer associated with a rechargeable battery provided within the device, and select one of the tables based on the determined battery type and the determined battery manufacturer associated with the battery; a temperature monitor to determine a temperature associated with the battery; and a charger to; determine a current cutoff parameter from the selected table based on the determined temperature, supply current to the battery, determine when the supplied current reaches a value corresponding to the current cutoff parameter, and cease further supply of the supplied current to the battery when the supplied current reaches the value corresponding to the current cutoff parameter. - View Dependent Claims (2, 3, 4, 5, 10, 11, 12)
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6. A method for charging a rechargeable battery, comprising:
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storing a plurality of tables, each of the tables including a plurality of entries, each of the entries storing a temperature parameter and a current cutoff parameter, each of the tables corresponding to a different battery type and a different battery manufacturer; determining a battery type and a battery manufacturer associated with the battery; selecting one of the tables based on the determined battery type and the determined battery manufacturer associated with the battery; supplying a current to the battery to charge the battery; determining a temperature associated with the battery; identifying a cutoff parameter in the selected table based on the determined temperature; determining when the supplied current matches a value corresponding to the cutoff parameter; and stopping further supply of the supplied current to the battery when the supplied current matches the value corresponding to the current cutoff parameter. - View Dependent Claims (7, 8, 13, 14, 15, 17, 18)
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9. A device, comprising:
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means for storing a plurality of tables, each of the tables including a plurality of sets of temperature parameters and current cutoff parameters, each of the sets including one of the temperature parameters and a corresponding one of the current cutoff parameters, each of the tables corresponding to a different battery manufacturer; means for determining a battery manufacturer associated with a battery provided within the device; means for selecting one of the tables based on the determined battery manufacturer associated with the battery; means for determining a temperature associated with the battery; means for comparing the determined temperature to the temperature parameters in the selected table to identify one of the temperature parameters; means for identifying the current cutoff parameter corresponding to the identified temperature parameter; means for supplying current to the battery; means for determining when the supplied current matches the identified current cutoff parameter; and means for stopping further supply of the supplied current to the battery when the supplied current matches the identified current cutoff parameter. - View Dependent Claims (16, 19)
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Specification