Battery charger

Details Battery charger Battery charger

1977-12-05

1980-12-30

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 32, 320 39, H02J 710

Patent

active

042426278

ABSTRACT:
A battery charging system for charging a battery from an AC source, including control rectifier means for rectifying the charging current, a pulse generator for triggering the rectifier to control the transmission of current to the battery, phase control means for timing the firing of the pulse generator according to the charge on the battery, and various control means for alternatively controlling the phase control means depending upon the charge on the battery; wherein current limiting means are provided for limiting the charging current according to the charge on the battery to protect the system from excessive current in the event a weak battery is being charged, a feedback circuit is provided for maintaining the charge on a battery to compensate for battery leakage, and circuitry is provided for equalizing the voltage between the respective cells of the battery.

REFERENCES:
patent: 3382425 (1968-05-01), Legatti
patent: 3586955 (1971-06-01), Kisiel
patent: 3766463 (1973-10-01), Ruben
patent: 3781631 (1973-12-01), Nelson et al.
patent: 3876921 (1975-04-01), Bigbee
patent: 4031451 (1977-06-01), Gordon

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