Transformerless battery controlled battery charger

Details Transformerless battery controlled battery charger Transformerless battery controlled battery charger

1981-09-30

1983-06-21

Shoop, William M.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 43, 320 48, H02J 710

Patent

active

043896081

ABSTRACT:
A lightweight, efficient, transformerless battery-charging system especially for use with electric vehicles, wherein a switching regulator stores only a fraction of the energy in each charging pulse, and much of the charging energy is supplied directly from the powerline and never stored in the charger. Major components include an overload and ground-fault protective current interruptor, an RF interference filter and line rectifier, and a switching regulator capable of maintaining a constant-current constant-voltage output, providing controlled input current throughout the AC cycle and including means for external shutdown.

REFERENCES:
patent: 3343066 (1967-09-01), Cribbs
patent: 3867682 (1975-02-01), Yamauchi et al.
patent: 3914679 (1975-10-01), Sullivan
patent: 4031449 (1977-06-01), Trombly
patent: 4210855 (1980-07-01), Harer et al.
patent: 4242627 (1980-12-01), Kisiel
patent: 4302717 (1981-11-01), Olla

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