Battery charger monitoring battery voltage and/or temperature at

Details Battery charger monitoring battery voltage and/or temperature at Battery charger monitoring battery voltage and/or temperature at

1995-06-05

1997-04-15

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 39, 320 24, 320 35, 320 43, H02J 700

Patent

active

056213026

ABSTRACT:
A charge current to be supplied to a battery is selected depending on a remaining capacity of the battery to be charged and/or an initial temperature of the battery to be charged. A battery voltage or a battery temperature is being monitored and sampled at a relevant sampling interval determined depending on the selected charge current. A difference between two battery voltages or between two battery temperatures at two sampling points is sequentially computed and whether or not the battery has reached a fully charged condition is determined based on the computed results.

REFERENCES:
patent: 4755735 (1988-07-01), Inakagata
patent: 5113128 (1992-05-01), Ohara et al.
patent: 5268630 (1993-12-01), Bhagwat et al.
patent: 5391974 (1995-02-01), Shiojima et al.
patent: 5410238 (1995-04-01), Ishizuka et al.
patent: 5444353 (1995-08-01), Shinohara et al.

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