Battery charging device

Details Battery charging device Battery charging device

1992-11-20

1994-02-22

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

H02J 710

Patent

active

052891046

ABSTRACT:
A battery charging device for charging a rechargeable battery unit includes a step-down unit which receives an external alternating current line voltage input and which reduces the line voltage input to an appropriate level. A rectifier unit receives the reduced line voltage input from the step-down unit and generates a direct current signal to charge the battery unit. A current limiting resistor serially interconnects the rectifier unit and the battery unit. A control unit is in series with the battery unit and includes a temperature switch, an excess current protective device in series with the switch, and a high resistance heating unit connected across the series combination of the switch and the protective device.

REFERENCES:
patent: 3911350 (1975-10-01), Swope
patent: 3911351 (1975-10-01), Saslow
patent: 4297630 (1981-10-01), Mullersman
patent: 4544876 (1985-10-01), Bailey et al.
patent: 4998056 (1991-03-01), Cole

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