Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1977-03-14
1979-01-23
Hickey, Robert J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 39, H02J 704
Patent
active
041363108
ABSTRACT:
A controller for incorporation in a battery charger to limit the overall length of the charge, and also to provide short topping-up charges at intervals after the main charge has been completed, if the battery is left connected to the charger. The controller allows the limit on the length of the charge to be set to either 10 or 141/2 hours; the subsequent topping-up charges then start at intervals for 10 or 141/2 hours, and last for about 40 or about 55 minutes, depending on the setting of the main charge time limit. The controller is illustrated in conjunction with a charger control circuit which terminates the main charge when the rate of rise of battery voltage falls below a predetermined value, and this is normally expected to occur before 10 (or 141/2) hours have elapsed, leaving the time limit set by the controller as a safeguard.
REFERENCES:
patent: 3886427 (1975-05-01), Long
patent: 4016474 (1977-04-01), Mason
Chloride Group Limited
Hickey Robert J.
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