Method and system for float charging a battery

Details Method and system for float charging a battery Method and system for float charging a battery

2011-07-26

2011-07-26

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07986129

ABSTRACT:
Float charging a battery comprises charging a battery to a reference voltage that is less than a maximum voltage of the battery. A power source provides power to a charging circuit. The circuit supplies a reference voltage. An operational amplifier float charges the battery to the reference voltage. A comparator determines whether the battery's voltage exceeds the reference voltage. Another comparator determines whether current through the battery exceeds a reference current. A thermistor determines whether the battery's temperature exceeds a safe range. A microprocessor monitors the inputs from the comparators and the thermistor and outputs of the circuit. If the comparators or the thermistor reports a safety fault to the microprocessor, the microprocessor shuts down the charging current to the battery. If an output circuit draws too much current from the battery, the microprocessor can disconnect the battery from the output circuit.

REFERENCES:
patent: 2715710 (1955-08-01), Godshalk et al.
patent: 5708348 (1998-01-01), Frey et al.
patent: 6184650 (2001-02-01), Gelbman
patent: 6252373 (2001-06-01), Stefansson et al.
patent: 2002/0050805 (2002-05-01), Petrovic
patent: 2005/0225299 (2005-10-01), Petrovic
patent: 2005/0249899 (2005-11-01), Bonutti
patent: 2006/0238166 (2006-10-01), Wanibuchi
patent: 2007/0085693 (2007-04-01), Feight
Written Opinion and International Search Report issued Feb. 24, 2009 for corresponding PCT application PCT/US2008/088098 (8 sheets).

Affiliated with

Also associated with

Rating

Method and system for float charging a battery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for float charging a battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for float charging a battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2690360