Voltage monitor

Details Voltage monitor Voltage monitor

1979-02-27

1981-07-28

Tokar, Michael J.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324133, 34087029, G01N 2742

Patent

active

042812909

ABSTRACT:
A voltage monitor is disclosed. The voltage monitor comprises a digital voltmeter for displaying a measured input voltage, and means for converting the varying input voltage of the monitor into a stabilized power supply voltage for the operation of the digital voltmeter. The input voltage is applied to the digital voltmeter through a response time controller providing a long time constant averaging value of input voltage to the digital voltmeter when the input voltage is within a predetermined range about a normal value, and for providing a faster response to input voltage values when the input voltage exceeds its normal value. The voltage is also applied to a stability indicator through an averaging circuit which permits the stability indicator to show short term fluctuations of input voltage about its normal value.

REFERENCES:
patent: 3157870 (1964-11-01), Marino et al.
patent: 3366943 (1968-01-01), Hart
patent: 3515983 (1970-06-01), Lante
patent: 3943498 (1976-03-01), McClelland
patent: 4163935 (1979-08-01), Sakurada

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