Battery status monitoring apparatus which monitors internal...

Details Battery status monitoring apparatus which monitors internal... Battery status monitoring apparatus which monitors internal...

2006-04-25

2006-04-25

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07034504

ABSTRACT:
A microcomputer monitors, on the basis of outputs from a current sensor and voltage sensor, a voltage drop due to an internal resistance when the drop in the terminal voltage due to polarization occurring during the discharge of a battery is saturated, and a dischargeable capacity of the battery corresponding to the value resulting when the saturated voltage drop of the terminal voltage is subtracted from the chargeable capacity of the battery. Such a configuration provide a battery status monitoring device capable of knowing the battery status correctly, a saturation polarization detecting method which is useful to know the charging state of the battery and a dischargeable capacity detecting method.

REFERENCES:
patent: 5281919 (1994-01-01), Palanisamy
patent: 5864237 (1999-01-01), Kawai et al.

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