Battery manager chip with connections for redundant backup batte

Details Battery manager chip with connections for redundant backup batte Battery manager chip with connections for redundant backup batte

1990-12-21

1992-12-01

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 14, 365229, 307 66, H02J 704

Patent

active

051682060

ABSTRACT:
A battery management chip which controls charging and discharging currents of a rechargeable battery. In a portable module, the battery manager chip controls the charging and discharging of the rechargeable battery which powers the whole module, and is therefore connected directly to the battery and to the source of charging current. The chip is also connected to draw very small amounts of current from a third, stable battery, preferably a lithium battery, which is not necessarily rechargeable.

REFERENCES:
patent: 3816768 (1974-06-01), Stein
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patent: 4006397 (1977-02-01), Catotti et al.
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patent: 4288865 (1981-09-01), Graham
patent: 4571531 (1986-02-01), Lin
patent: 4715016 (1987-12-01), Lamiaux et al.
patent: 4742289 (1988-05-01), Wahlstrom
patent: 4843299 (1989-06-01), Hutchings
patent: 4908790 (1990-03-01), Little et al.
patent: 4962485 (1990-10-01), Kato et al.
patent: 5058075 (1991-10-01), Mizuta

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