04468605 is referenced by 28 patents and cites 14 patents.

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.

Title
Timed voltage clamp for battery charger
Application Number
6/367327
Publication Number
4468605
Application Date
April 12, 1982
Publication Date
August 28, 1984
Inventor
Darrell A Pfeffer
Sunrise
FL, US
Edward A Fitzgerald
Ft. Lauderdale
FL, US
Agent
James W Gillman
Margaret Marsh Parker
Assignee
Motorola
IL, US
IPC
H02J 7/04
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