Current detector for detecting battery charge remaining

Details Current detector for detecting battery charge remaining Current detector for detecting battery charge remaining

1995-03-08

1997-04-22

Wieder, Kenneth A.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

320 40, 320 30, H02J 700

Patent

active

056232101

ABSTRACT:
A current-voltage convertor 32 respectively generates positive and negative voltages Xa when a battery 20 is being charged and discharged. A voltage synthesizer 34 adds a prescribed positive voltage to the voltage Xa, and always generates a positive sample voltage Xs. This sample voltage Xs and prescribed reference voltages X1, X2 are compared by means of two differential amplifiers 40, 42 to obtain signals V1, V2 for the currents being charged and discharged. Then, these signals are supplied to a microcomputer 44.

REFERENCES:
patent: 5307001 (1994-04-01), Heavey

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