Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1995-12-22
1997-09-30
Nappi, Robert
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 39, H01M 1044, H01M 1046
Patent
active
056729537
ABSTRACT:
A charging device and control method for preventing recharging of a fully charged battery. The charging device for a rechargeable battery includes a power unit for outputting a constant voltage of a given level, irrespective of the current output therefrom a battery pack into which the battery is inserted, and a switch for supplying the battery with the constant voltage output from the power unit through the battery pack in response to a switch control signal, and a control unit. The control unit includes a battery voltage sensing unit for sensing a battery voltage every given period of time, a comparing unit for comparing a preset full charge threshold voltage with an output of the battery voltage sensing unit and outputting a signal, and an input/output unit responsive to the signal output by the comparing unit, for driving the switch and turning on the charging of the battery in the event that the sensed battery voltage is less than the full charge threshold voltage, or for driving the switch and turning off the charging of the battery in the event that the sensed battery voltage is more than the full charge threshold voltage.
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Bushnell Esq. Robert E.
Law Patrick B.
Nappi Robert
Samsung Electronics Co,. Ltd.
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