Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1977-11-14
1979-05-08
Hickey, Robert J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 48, 324 295, H02J 710, H01N 2742
Patent
active
041538676
ABSTRACT:
A device for determining the charge condition of a secondary electric storage battery, and including a digital integrator comprising a pulse generator for producing pulses at a frequency proportional to the magnitude of the instantaneous battery current, and an up-down counter for counting the pulses in a sense (i.e. up or down) dependent upon the battery current direction. A switching arrangement operates to couple selectively the pulse generator or an adjustment pulse generator to the counter, and a comparator controls the supply of pulses to, and the sense of counting in the counter, when the adjustment pulse generator is coupled thereto in accordance with the result of a comparison of the counter setting and of a function signal. A function generator, programmable in accord with the relationship between temperature, no-load voltage, and charge condition of the battery concerned, is controllable in accord with the instantaneous temperature and no load voltage of the battery so as to generate the function signal to represent the associated charge condition.
REFERENCES:
patent: 3895284 (1975-07-01), Schweizer et al.
patent: 3898548 (1975-08-01), Perelle et al.
patent: 3906329 (1975-09-01), Bader
patent: 3971980 (1976-07-01), Jungfer et al.
Jungfer, deceased Leopold
Jungfer, heir by Helmut
Kautschitsch Dieter
Meyenburg, heir by Ingeborg
Weber Richard
Akkumulatoren-fabrik Dr. Leopold Jungfer
Hickey Robert J.
Marmorek Ernest F.
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