High efficiency circuit for rapidly charging batteries

Details High efficiency circuit for rapidly charging batteries High efficiency circuit for rapidly charging batteries

1978-11-08

1980-07-08

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 21, 320 59, H02J 710

Patent

active

042119693

ABSTRACT:
An improved battery charger circuit for rapidly charging batteries by increasing the rate of battery charge acceptance through periodic battery discharge pulses during the charging process includes first and second chopper circuits coupled in parallel through an inductor across the DC source for coupling to a battery.
The first chopper circuit controls the amplitude of battery charge current while the second chopper circuit controls the amplitude of battery discharge current and provides a low impedance conduction path for discharge current to be returned to the DC source, thus realizing an efficient battery charger circuit.

REFERENCES:
patent: 3614581 (1971-10-01), Frost
patent: 3614582 (1971-10-01), Burkett et al.
patent: 3622857 (1971-11-01), Sethi
patent: 3656046 (1972-04-01), Parke
patent: 3683256 (1972-08-01), Mas
patent: 3732481 (1973-05-01), Mas

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