Power control circuit for a battery charger

Details Power control circuit for a battery charger Power control circuit for a battery charger

1996-03-19

1997-07-15

Nguyen, Matthew V.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

363 89, H02H 706, H02M 704

Patent

active

056487169

ABSTRACT:
A power control circuit for improved charging of a battery. The circuit includes a rectifying device to provide rectified alternating current when receiving an input from an electrical power source; a comparator device; circuitry for providing a predetermined voltage to the inverting input of the comparator device; circuitry for providing a predetermined voltage to the non-inverting input of the comparator device; regulator circuitry whose output is connected to the battery; switching circuitry connected between the regulator circuitry and the rectifying device; and control circuitry which is coupled between the switching circuitry and the output of the comparator device. The control circuitry activates the switching circuitry for a predetermined time, determined by the output from the comparator device, to allow the rectified alternating current to reach a desired voltage across the regulator circuitry, at which time the control circuitry deactivates the switching circuitry, wherein the value of the desired voltage is determined by the voltage inputs to the comparator device.

REFERENCES:
patent: 4376263 (1983-03-01), Pittroff et al.
patent: 4382222 (1983-05-01), Kurz et al.
patent: 4564800 (1986-01-01), Jurjans
patent: 5266881 (1993-11-01), Hoffman et al.
patent: 5302858 (1994-04-01), Folts

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