Method and apparatus for using an external resistor for...

Details Method and apparatus for using an external resistor for... Method and apparatus for using an external resistor for...

2007-02-27

2010-02-02

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07656127

ABSTRACT:
A device using a single external resistor for battery charging applications and a software current feedback control loop for use with the external resistor is described. For instance, a single resistor can be used to determine the charge electrical current level being used to charge a battery. The determined level from the single resistor can be used in a feedback loop to set the charge electrical current level and to determine if there is an over current condition requiring the charge current be shut down.

REFERENCES:
patent: 6140928 (2000-10-01), Shibuya et al.
patent: 7099168 (2006-08-01), Fukumoto
patent: 2006/0255768 (2006-11-01), Yoshio
patent: 2007/0190369 (2007-08-01), Leach et al.

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