High power factor switching-type battery charger

Details High power factor switching-type battery charger High power factor switching-type battery charger

1982-12-13

1984-09-18

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 32, 320 35, 320 39, 363 41, 363124, H02J 700, H02M 700

Patent

active

044726724

ABSTRACT:
A switching-type charging circuit is described wherein the power factor of the circuit has been optimized. The switching-type charging circuit utilizes a dual loop feedback system to control the input and output current of the circuit. The dual feedback loop system utilizes a sinusoidal voltage reference in conjunction with a pulse width modulation circuit to force the input impedance of the circuit to appear substantially purely resistive.

REFERENCES:
patent: 3068392 (1962-12-01), Santelmann, Jr.
patent: 3419792 (1968-12-01), Kasper et al.
patent: 3629681 (1971-12-01), Gurwicz
patent: 3731183 (1973-05-01), Johnson et al.
patent: 3821635 (1974-06-01), Kimmel et al.
patent: 3876921 (1975-04-01), Bigbee
patent: 4087733 (1978-05-01), Casagrande
patent: 4160945 (1979-07-01), Schorr
patent: 4242627 (1980-12-01), Kisiel
patent: 4321523 (1982-03-01), Hammel
patent: 4339705 (1982-07-01), Kelley
patent: 4384321 (1983-05-01), Rippel

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