Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1982-04-12
1984-08-28
Shoop, William M.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 38, 320 40, H02J 704
Patent
active
044686056
ABSTRACT:
A battery charging device wherein the charging current level is controllable by a thermal circuit responsive to battery temperature also includes a circuit responsive to battery voltage and a timing circuit. The timing circuit is activated when a battery is inserted into the device for charging and immediately times a very brief interval. If the battery voltage exceeds a predetermined level during the timed interval, the charging current level is reduced as by the thermal circuit. The circuit protects both cold and charged batteries from damage due to overcharging.
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Fast Charging Systems for Ni-Cd Batteries, Applications Note AN-447, Prepared by David A. Zinder, Motorola Semiconductor Products Inc.
Fitzgerald Edward A.
Pfeffer Darrell A.
Ault Anita M.
Gillman James W.
Motorola Inc.
Parker Margaret Marsh
Shoop William M.
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