Battery charging systems

Details Battery charging systems Battery charging systems

1994-07-05

1996-05-07

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 39, H01M 1046

Patent

active

055149456

ABSTRACT:
A battery management chip which controls charging and discharging currents of a rechargeable battery. Another significant teaching of the presently preferred embodiment is a battery manager integrated circuit which includes an on-chip bandgap voltage reference. The circuitry for bandgap voltage references is conventional, and a variety of circuit configurations are very well-known, but bandgap voltage references normally have a significant power consumption. However, the precise voltage reference derived from such a circuit is extremely useful in performing precise and optimal control of battery function.

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patent: 3766403 (1973-10-01), Tsutsumi
patent: 4237385 (1980-12-01), Jurgens et al.
patent: 4571531 (1986-02-01), Lin
patent: 4742289 (1988-05-01), Wahlstrom
patent: 4884161 (1989-11-01), Atherton et al.
patent: 5013932 (1991-05-01), Smith
patent: 5151644 (1992-09-01), Pearson et al.
patent: 5168206 (1992-12-01), Jones

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