D.C. Stepped-up voltage transformerless battery charger

Details D.C. Stepped-up voltage transformerless battery charger D.C. Stepped-up voltage transformerless battery charger

1982-02-25

1985-04-09

Beha, Jr., William H.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 39, H02J 700

Patent

active

045104310

ABSTRACT:
A battery charger that takes energy from a battery and steps-up the voltage to charge another battery.
The direct current, going into the charger's circuit goes through the voltage regulator and then to a switching voltage regulator (the integrated circuit) and a few external components which generates the energy to charge the output capacitor. The output capacitor voltage is controlled by a resistive voltage divider network, and energy stored in the output capacitor is transferred through a diode and a current limiter to charge the battery.

REFERENCES:
patent: 3614581 (1971-10-01), Frost
patent: 3775659 (1973-11-01), Carlsen
patent: 4128867 (1978-12-01), Heyman
patent: 4311954 (1982-01-01), Capel

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