Battery charger having analog charge profile for charging multiple batteries
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United States of America Patent
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May 7, 2013
Grant Date -
Sep 17, 2009
app pub date -
May 22, 2009
filing date -
Jun 21, 2006
priority date (Note) -
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Abstract
A battery charger for charging a plurality of batteries includes a plurality of charge managers and a cross-over controller coupled to the charge managers. The charge managers are coupled to a common power source that has a finite maximum available current. The cross-over controller is configured to continuously determine the charge current that is applied to one of the batteries by one of the charge managers, and to direct another one of the charge managers to apply to another one of the batteries a charge current that is based on the determined charge current. The total of the determined charge current that is applied to the one battery and the charge current that is applied to the other battery (prior to when the voltage across the other battery reaches a rated value) is continuously substantially equal to the maximum available current.
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