Battery charging control circuits

Details Battery charging control circuits Battery charging control circuits

1974-10-16

1976-02-03

Miller, J. D.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 21, 320 39, 320 46, H02J 710

Patent

active

039367185

ABSTRACT:
An improvement in the battery charging control circuit of our co-pending Application Serial No. 400,001, and more particularly a new means for detecting the onset of gassing during the charging of a battery, such as lead-acid battery.
In the exemplary embodiment described in our co-pending Application Serial No. 400,001, the onset of gassing was assumed to be imminent upon the attainment of a particular battery cell voltage. The present invention provides an improved means for determining the true onset of gassing by recognition of a unique point in the temporal pattern of the differences between successive registered battery voltages as measured during interruptions of charging.

REFERENCES:
patent: 3621359 (1971-11-01), Schnegg
patent: 3700997 (1972-10-01), Smith
patent: 3761795 (1973-09-01), Clayton et al.

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