Charge controlling circuit

Details Charge controlling circuit Charge controlling circuit

2011-04-12

2011-04-12

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

Time control

C320S154000, C320S150000, C320S145000, C320S125000, C367S180000, C347S119000, C356S308000

Reexamination Certificate

active

07923970

ABSTRACT:
A charge controlling circuit controls charging of a lithium-ion rechargeable battery. An electric power supplied from an external charger to the lithium-ion rechargeable battery is taken by a charging terminal. When the charging terminal is connected to the external charger, whether or not a charge prohibition condition is satisfied is determined by a CPU. A charging operation is prohibited when the charge prohibition condition is satisfied, but is permitted when the charge prohibition condition is not satisfied. Here, the charge prohibition condition includes a shortest time condition that a time during which the charging terminal is detached from the external charger is above a defined time decided in view of an instantaneous power interruption.

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Office Action from Japanese Patent Application No. 2006-339874, mailed on Oct. 5, 2010.

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