Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1988-08-09
1990-05-15
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 2, 219202, H02J 704, H05B 336
Patent
active
049261061
ABSTRACT:
A battery charging device is operable in conjunction with a battery heater to simultaneously heat and recharge the battery of an aircraft which has been stored under cold weather conditions. A thermostat energizes a power supply when the ambient air temperature drops below a given value. A transformer is connected with a power supply to produce an output voltage and a pair of transistors are connected with the transformer for converting the transformer output voltage to a given charging voltage which is supplied to the battery. A voltage control device including a rheostat and a voltage regulator is connected in a feedback circuit with the first and second transistors to control the transistors to produce a constant charging voltage. Thus as the battery is heated, the charging voltage supplied to the battery recharges the battery to full capacity.
REFERENCES:
patent: 4025861 (1977-05-01), Godard et al.
patent: 4081737 (1978-03-01), Miyahara
patent: 4644247 (1987-02-01), Burmenko
patent: 4762978 (1988-08-01), Tanis
Electronics--Designer's Casebook, "Regulated Power Supply is Adjustable from 0 to 38V", Miles, McGraw Hill Pub. 8/1976, pp. 88, 89.
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