Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1983-03-31
1985-11-19
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 35, 320 37, H02J 704
Patent
active
045545006
ABSTRACT:
A battery charging apparatus and method is disclosed. The battery charger includes a programmable two level constant current source having an inhibit input. A clock signal is fed to counting stages which time out after a specified time, during which time the battery is charged with constant current. A temperature sensing circuit detects the temperature of the charging battery and will allow the battery to charge at a reduced rate for a longer time period if the temperature increases above a threshold level. Once the counting stages time out, the battery charger pulse charges the battery at the reduced current level, preferably at a 20% duty cycle, at relatively long intervals to keep the battery from self discharging.
REFERENCES:
patent: 2070541 (1937-02-01), Beetem
patent: 3178629 (1965-04-01), Saslow
patent: 3413536 (1968-11-01), Webb
patent: 3487284 (1969-12-01), Cady
patent: 3510746 (1970-05-01), Furuishi et al.
patent: 3599071 (1971-08-01), Lapuyade
patent: 3614583 (1971-10-01), Burkett et al.
patent: 3617851 (1971-11-01), DuPuy et al.
patent: 3735233 (1973-05-01), Ringle
patent: 3767995 (1973-10-01), Kaminski et al.
patent: 3809993 (1974-05-01), Wheeler
patent: 3848173 (1974-11-01), Hase
patent: 3855516 (1974-12-01), Fairchild
patent: 3864617 (1975-02-01), Smith et al.
patent: 3867681 (1974-03-01), Bishop et al.
patent: 3911350 (1975-10-01), Swope
patent: 3917990 (1975-11-01), Sherman, Jr.
patent: 3938019 (1976-02-01), Schmitt et al.
patent: 3944904 (1976-03-01), Hase
patent: 3959707 (1976-05-01), Stephens
patent: 3963976 (1976-06-01), Clark
patent: 3987353 (1976-10-01), Macharg
patent: 4006397 (1977-02-01), Catotti et al.
patent: 4016473 (1977-04-01), Newman
patent: 4031450 (1977-06-01), Hammel et al.
patent: 4035709 (1977-07-01), Seider et al.
patent: 4061956 (1977-12-01), Brown et al.
patent: 4087733 (1978-05-01), Casagrande
patent: 4097792 (1978-06-01), Calaway
patent: 4125802 (1978-11-01), Godard
patent: 4136310 (1979-01-01), Foster
patent: 4237411 (1980-12-01), Kothe et al.
patent: 4270080 (1981-05-01), Kostecki
patent: 4297630 (1981-10-01), Mullersman
patent: 4301398 (1981-11-01), Johnson
patent: 4313078 (1982-01-01), Bilsky et al.
patent: 4321523 (1982-03-01), Hammel
patent: 4355275 (1982-10-01), Anglin
Anton/Bauer, Inc.
Hickey R. J.
LandOfFree
Battery charging apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Battery charging apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery charging apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-85858