Quick charging circuit

Details Quick charging circuit Quick charging circuit

1985-04-18

1987-05-26

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 21, 320 23, 320 39, H02J 704, H02J 710

Patent

active

046689010

ABSTRACT:
A quick charging circuit comprises a charging current generating circuit including a rectifier connected to an A.C. power source and a high frequency inverter connected to the rectifier for supplying a charging current to a storage battery, a circuit for detecting a voltage across the battery, a timer circuit operated by an output of the battery voltage detecting circuit, and means for reducing the charging current in response to a time limit output of the timer circuit, wherein an integrating circuit is provided with respect to the battery voltage detecting circuit so that any influence of high frequency components in the battery voltage can be removed, whereby the timer circuit can be operated accurately with a set voltage to reduce the charging current and to reliably prevent the battery from being subjected to any overcharging and internal pressure rise.

REFERENCES:
patent: 3609502 (1971-09-01), Burkett et al.
patent: 3944904 (1976-03-01), Hase

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