Battery charger having variable-magnitude charging current sourc

Details Battery charger having variable-magnitude charging current sourc Battery charger having variable-magnitude charging current sourc

1991-08-29

1992-11-24

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 24, H02J 704

Patent

active

051665964

ABSTRACT:
A battery charger for charging a nickel metal hydride battery with a fast charging current. The battery charger is operative to step-down, or constantly reduce, the magnitude of a charging current applied to a nickel metal hydride battery as the temperature level of the battery increases during charging thereof. As the temperature levels of the battery exceeds preset values, the magnitude of the charging current is reduced. When the temperature levels of the battery exceeds a maximum value, application of a fast charging current is terminated, and a trickle charging current is applied to the battery.

REFERENCES:
patent: 4006397 (1977-02-01), Catotti et al.
patent: 4045720 (1977-08-01), Alexandres
patent: 4670703 (1987-06-01), Williams
patent: 4692682 (1987-09-01), Lane et al.
patent: 4712055 (1987-12-01), Houser, Jr.
patent: 4727306 (1988-02-01), Misak et al.
patent: 4843299 (1989-06-01), Hutchings
patent: 5057762 (1991-10-01), Goedken et al.

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