Method and apparatus for rapidly charging a battery of a portabl

Details Method and apparatus for rapidly charging a battery of a portabl Method and apparatus for rapidly charging a battery of a portabl

1998-04-30

1999-12-07

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320164, H02J 700

Patent

active

059989726

ABSTRACT:
Improved techniques for charging batteries within portable computing devices are disclosed. The improved techniques operates to charge a battery at an approximately constant power level by adjusting a charge current as the battery voltage changes. As a result, the battery is able to be charged at a rate that is significantly faster than previously performed. Also, by monitoring the amount of power that is available for charging, the improved techniques ensure that the portable computing device is not starved for power during its operation.

REFERENCES:
patent: 5596260 (1997-01-01), Moravec et al.
patent: 5622789 (1997-04-01), Young
patent: 5644212 (1997-07-01), Takahashi
patent: 5645949 (1997-07-01), Young
patent: 5666006 (1997-09-01), Townsley et al.
patent: 5739667 (1998-04-01), Matsuda
patent: 5773963 (1998-06-01), Blanc et al.

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