Charging apparatus

Details Charging apparatus Charging apparatus

2007-06-26

2007-06-26

Easthom, Karl (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

Time control

C320S124000, C320S133000, C320S139000

Reexamination Certificate

active

11363486

ABSTRACT:
There is provided a charging apparatus, which uses a charging control timer having a relatively simple constitution, capable of preventing an overcharge of a secondary battery while detecting the overcharge of the secondary battery even if a charge current value is relatively small. The charging apparatus that discontinues the charging in a preset expiration time period of a timer has a variable controller for controlling the preset expiration time period of a timer in response to an interrupted time if the charging operation that is interrupted before reaching the preset expiration time of a timer is started again.

REFERENCES:
patent: 5206579 (1993-04-01), Kawate et al.
patent: 5225763 (1993-07-01), Krohn et al.
patent: 5350995 (1994-09-01), Iketani
patent: 5363312 (1994-11-01), Ninomiya
patent: 5923149 (1999-07-01), Umetsu
patent: 6281661 (2001-08-01), Kaite et al.

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