Battery charger with thermal runaway protection

Details Battery charger with thermal runaway protection Battery charger with thermal runaway protection

1991-09-13

1993-05-25

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 32, H02J 704

Patent

active

052143708

ABSTRACT:
A battery charger control includes a thermal sensor attached to the battery being charged. If the temperature readings indicate a thermal runaway condition the charging current output is adjusted in accord with the temperature reading by means of voltage injeciton into an output sense lead of the charging circuitry as a means of achieving a control that prevents thermal runaway of the battery while still permitting continuous charging of the battery.

REFERENCES:
patent: 3852652 (1974-12-01), Jasinski
patent: 3895283 (1975-07-01), Peterson
patent: 4209736 (1980-06-01), Reidenbach
patent: 5012176 (1991-04-01), LaForge
"Battery Monitor Stops Thermal Runaway Cold", by J. Plunkett Telephony, vol. 195, No. 16, p. 45.
Hewlett-Packard Power Supply Catalog, 1990/91, p. 123, Cited for showing adjustable voltage source in power supply regulation lense lead.

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