Battery monitoring system of cell groups and display

Details Battery monitoring system of cell groups and display Battery monitoring system of cell groups and display

1989-01-27

1990-06-05

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324434, 324433, 340636, G01N 2746

Patent

active

049317385

ABSTRACT:
A battery monitoring system has an LED matrix displaying plural battery group conditions. The matrix has a column defining reference row of LED indicators, each active LED representing an adjacent voltage range. The reference row is responsive to an average battery voltage of plural battery groups. Aligned in columns with the reference row LED's are plural LED rows, each row representing an individual battery group. An active LED indicates an individual battery group voltage of the corresponding individual battery group. Analog multiplexing of scanned battery group voltages are sequentially applied to the matrix rows at a scan rate greater than the visual persistence of the LED's so that at any given moment, an LED appears active in each row as well as in the reference row. To focus on a single battery group, a scan switch interrupts application of scanned battery voltages. A digital display also selectively indicates either overall plural battery groups voltage or individual battery group voltage.

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patent: 4633418 (1986-12-01), Bishop
patent: 4823086 (1989-04-01), Whitmire et al.
Dualite, Spectron Emergency AC Systems, 7/86, 20 page brochure.

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