Battery voltage detecting device

Details Battery voltage detecting device Battery voltage detecting device

1990-10-17

1992-03-24

Wieder, Kenneth A.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324433, 340636, G01N 2746

Patent

active

050992090

ABSTRACT:
A battery voltage detecting device has a circuit for separately detecting the time it takes for a capacitor to be charged to a second reference voltage, in response to the application of a battery voltage and a first reference voltage to the capacitor. A calculating circuit determines the battery voltage from the charging times of the capacitor and the values of the reference voltages.

REFERENCES:
patent: 4560937 (1985-12-01), Finger
patent: 4866389 (1989-09-01), Ryan et al.

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