Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1998-03-20
2000-06-27
Kim, Jung
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
307 48, 324426, 324434, G05F 110
Patent
active
060811544
ABSTRACT:
Gas gauge circuitry for monitoring and accumulating various operating parameters of a rechargeable battery with selected parameters being used to determine the remaining operating life of a rechargeable battery, and includes a current monitor for measuring the current flow into and out of the rechargeable battery. An integrated current accumulator is connected to the current monitor and is used to maintain a net accumulated total of current flowing into and out of the rechargeable battery. A charging current accumulator, which is also coupled to the current meter is used to maintain the total current flowing into the rechargeable battery, while a discharging current accumulator is used to maintain the total current flowing out of the rechargeable battery. A highly accurate, oscillatory circuit is used to drive the accumulators to increase the accuracy of the gas gauge functions therefrom.
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Douglass James M.
Ezell Richard William
Dallas Semiconductor
Kim Jung
LandOfFree
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