Battery recharging system with signal-to-noise responsive fallin

Details Battery recharging system with signal-to-noise responsive fallin Battery recharging system with signal-to-noise responsive fallin

1994-02-28

1996-09-17

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 31, H01M 1044

Patent

active

055571905

ABSTRACT:
The falling voltage slope charge termination routine is performed during intervals of the charging cycle in which signal-to-noise ratio is comparatively high. The falling voltage slope charge termination technique is automatically disabled or rendered less sensitive to noise during times when the signal-to-noise ratio is comparatively low. In this way, accurate charge termination is accomplished without error otherwise induced by voltage noise during charging. The charge termination technique responds quickly to a charged battery indication, since signal averaging to negate the effects of noise can be minimized or eliminated.

REFERENCES:
patent: 4388582 (1983-06-01), Saar et al.
patent: 4392101 (1983-07-01), Saar et al.
patent: 5206579 (1993-04-01), Kawate et al.
patent: 5352969 (1994-10-01), Gilmore et al.
patent: 5376873 (1994-12-01), Toya
patent: 5432426 (1995-07-01), Yoshida
patent: 5449996 (1995-09-01), Matsumoto et al.

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