Intelligent low battery detection circuit for a paging receiver

Details Intelligent low battery detection circuit for a paging receiver Intelligent low battery detection circuit for a paging receiver

1993-08-18

1997-12-09

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

324430, H01M 1046

Patent

active

056964374

ABSTRACT:
A low battery condition is determined by sampling battery terminal voltage with a voltage comparator under light and heavy loading, and indicating a low battery condition when the rate of change of the sampled voltage or the rate of change of the internal resistance of the battery is greater than a predetermined limit.

REFERENCES:
patent: 4484140 (1984-11-01), Dieu
patent: 4595880 (1986-06-01), Patil
patent: 4849700 (1989-07-01), Morioka et al.
patent: 5061898 (1991-10-01), Oram et al.
patent: 5119011 (1992-06-01), Lambert

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