Plural comparator indicator of battery voltage

Details Plural comparator indicator of battery voltage Plural comparator indicator of battery voltage

1975-01-31

1977-04-26

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324133, 340249, 320 48, G01N 2742

Patent

active

040204146

ABSTRACT:
A battery status indicator for use with a DC battery to provide an indication of the battery's ability to provide a necessary amount of charge and is especially useful in a vehicular electrical system using a DC battery. The system is characterized by using miniaturized integrated circuitry for reduced size and increased reliability of operation and includes a single package quad comparator in conjunction with a scaling network of resistors to show very small voltage changes to a network of indicators such as a lightbulb and alarm system. The system is capable of showing in a step-by-step sequence the progressional deterioration in the voltage level of the battery such that it allows one to continuously monitor the status of the battery prior to its becoming inoperable.

REFERENCES:
patent: 2745090 (1956-05-01), Grillo
patent: 2991413 (1961-07-01), Taylor
patent: 3796951 (1974-03-01), Joseph
R. S. Fritz, "Indicating Lamp System for Diagnostic Measurement", IBM, Tech. Bul., vol. 16, No. 9, Feb. 1974, pp. 2841, 2842.

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