Battery voltage measurement system

Details Battery voltage measurement system Battery voltage measurement system

1990-03-26

1992-03-24

Wieder, Kenneth A.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

340636, G01N 27416

Patent

active

050992112

ABSTRACT:
A measurement system for measuring discrete voltages of serially connected battery modules making up a battery power supply wherein there would be connected to each junction between cells one terminal of a dual-level voltage responsive switch and wherein the other terminal of each switch is connected to a common terminal. The switches are identical, and each would close at a first voltage across it and open at a second, slight higher, voltage. A ramp voltage is generated and connected from the common terminal and the high voltage terminal of the supply. The ramp voltage and current through this circuit are concurrently measured and displayed wherein the difference in voltage between the appearance of two current pulses is illustrative of the battery voltage of the battery module connected between switches giving rise to the current pulses.

REFERENCES:
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patent: 3515983 (1970-06-01), Lante
patent: 4198597 (1980-08-01), Sawyer
patent: 4304823 (1980-03-01), Lemelson
patent: 4352067 (1982-09-01), Ottone
patent: 4433294 (1984-02-01), Windebank
patent: 4820966 (1989-04-01), Fridman
patent: 4931738 (1990-06-01), MacIntyre et al.

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