Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1992-12-29
1995-07-04
Dougherty, Thomas M.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 31, 320 35, H01M 1044, H02J 704
Patent
active
054303630
ABSTRACT:
During charging, the present invention checks a charging state by checking a voltage and a temperature of charged battery, and after the completion of charging, it checks the voltage of battery after a predetermined time and activates the battery if the voltage is abnormal, so that the battery is fully charged. To do this, if the battery is newly inserted, first of all, a rapid charging operation is performed. And, it is checked whether charging blocking condition is generated in charging, and if not, charging operation is repeatedly performed. If a charging blocking condition is generated during charging however, a passage of charging current is blocked and the stand-by for a predetermined time is performed. At this time, in the stand-by step, to check whether the battery is normally charged, after completing the stand-by time, the charging voltage is checked, thereby checking the full-charging. If an abnormal voltage state is determined, charging power of the battery is discharged, and after standing-by for a predetermined time, charging operation is repeatedly performed. Accordingly, the non-activated battery is activated by automatically and repeatedly performing charging and discharging operation and then is fully charged.
REFERENCES:
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patent: 4302714 (1981-11-01), Yefsky
patent: 4829226 (1989-05-01), Nakamura et al.
patent: 5130634 (1992-07-01), Kasai
patent: 5159258 (1992-10-01), Kolvites et al.
patent: 5248927 (1993-09-01), Takei et al.
Bushnell Robert E.
Dougherty Thomas M.
Samsung Electronics Co,. Ltd.
Tso E.
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