Method and apparatus for charging a battery using a...

Details Method and apparatus for charging a battery using a... Method and apparatus for charging a battery using a...

2006-09-29

2008-11-11

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

C320S160000

Reexamination Certificate

active

07449862

ABSTRACT:
A device (102) contains a battery (116) which is recharged under control of a charge controller (112). An external power supply (104) provides charging current and voltage (106). A linear regulator (110) regulates the raw voltage provided by the external power supply. The device (102) also contains a heat-generating sub-system (118). To prevent excess heat generation while charging the battery, the battery charging regime is altered from a conventional regime when the heat-generating sub-system is active. Once the battery voltage reaches a charge limit (208), charge current is ceased (210) until the battery voltage falls to a lower limit (212), at which time the charging current is recommenced.

REFERENCES:
patent: 5864220 (1999-01-01), Reipur et al.
patent: 6075339 (2000-06-01), Reipur et al.
patent: 2007/0132427 (2007-06-01), Veselic

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