Battery charging circuit

Details Battery charging circuit Battery charging circuit

1974-02-21

1976-03-09

Miller, J. D.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 39, 320DIG1, 323 4, H02J 710, G05F 144

Patent

active

039434230

ABSTRACT:
Disclosed is an improved circuit for recharging batteries. It can be used with alternating current power sources having a wide range of voltage and frequencies and also with low voltage direct current power sources. A transistor switch is connected in a feedback circuit to have, in effect, a variable resistance such that the charging current is high when the source potential is low and decreases to zero as the source potential increases. Charging efficiency is thereby significantly increased.

REFERENCES:
patent: 3068392 (1962-12-01), Santelmann, Jr.
patent: 3145404 (1964-08-01), Fiedler
patent: 3197652 (1965-07-01), Wolf et al.
patent: 3413537 (1968-11-01), Sharp et al.
patent: 3471771 (1969-10-01), Mortimer
patent: 3521050 (1970-07-01), Shagena, Jr.
patent: 3525912 (1970-08-01), Wallin
patent: 3586954 (1971-06-01), Carves
patent: 3876921 (1975-04-01), Bigbee

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