초록 ▼

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

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.

대표청구항 ▼

What is claimed is: 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

What is claimed is: 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, 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. 2. The device of claim 1, where the temperature monitor includes a thermistor. 3. The device of claim 1, where when determining a current cutoff parameter, the charger is configured to: match the determined temperature to the temperature parameter associated with one of the entries in the selected table, and identify the current cutoff parameter that corresponds to the temperature parameter in the one of the entries. 4. The device of claim 1, where the battery is less than fully charged when further supply of the supplied current is ceased. 5. The device of claim 1, where the battery includes a lithium ion battery or a lithium polymer battery. 6. A method for charging a rechargeable battery, comprising: 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. 7. The method of claim 6 where identifying a cutoff parameter includes: matching the determined temperature to the temperature parameter associated with one of the entries in the selected table, and determining the cutoff parameter as the current cutoff parameter that corresponds to the temperature parameter in the one of the entries. 8. The method of claim 6, where stopping further supply of the supplied current to the battery includes: ceasing further supply of the supplied current before the battery is fully charged. 9. A device, comprising: 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. 10. The device of claim 1, where the processing logic is configured to automatically determine the battery type and the battery manufacturer associated with the battery. 11. The device of claim 1, where the processing logic is configured to: receive user input that identifies the battery type and the battery manufacturer associated with the battery, and select one of the tables based on the user input. 12. The device of claim 3, where the battery is less than fully charged when further supply of the supplied current is ceased. 13. The method of claim 6, where determining the battery type and the battery manufacturer associated with the battery includes automatically determining the battery type and the battery manufacturer associated with the battery. 14. The method of claim 6, where determining the battery type and the battery manufacturer associated with the battery includes receiving user input that identifies the battery type and the battery manufacturer associated with the battery; and where selecting one of the tables based on the determined battery type and the determined battery manufacturer associated with the battery includes selecting one of the tables based on the user input. 15. The method of claim 7, where stopping further supply of the supplied current to the battery includes: ceasing further supply of the supplied current before the battery is fully charged. 16. The device of claim 9, where each of the tables corresponds to a different battery type and a different battery manufacturer. 17. The device of claim 14, further comprising: means for determining a battery type associated with the battery. 18. The device of claim 15, where the means for selecting one of the tables includes means for selecting one of the tables based on the determined battery type and the determined battery manufacturer. 19. The device of claim 9, where the means for stopping further supply of the supplied current to the battery includes: means for ceasing further supply of the supplied current before the battery is fully charged.