Battery charging system and method

Details Battery charging system and method Battery charging system and method

2009-03-13

2011-12-20

Diao, M′Baye (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S162000, C320S149000

Reexamination Certificate

active

08080978

ABSTRACT:
Methods, devices, and systems for charging a battery in a mobile device are provided. For example, in one embodiment, among others, a battery charging system includes a monitoring circuit configured to monitor a battery and generate a sense current. The battery charging system further includes a comparing circuit configured to compare a reference current and the generated sense current. The comparing circuit is further configured to generate a comparison signal. Also, the battery charging system further includes a control circuit configured to control a level of a charging current applied to the battery based on the comparison signal.

REFERENCES:
patent: 5640078 (1997-06-01), Kou et al.
patent: 5889387 (1999-03-01), Massie
patent: 7501794 (2009-03-01), Felder et al.
patent: 2005/0099159 (2005-05-01), Ishida
patent: 2008/0258689 (2008-10-01), Antheunis et al.
patent: 2009/0228221 (2009-09-01), Kakiuchi et al.

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