CHARGING DEVICE AND CHARGING METHOD
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United States of America Patent
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Issued Date -
Oct 20, 2011
app pub date -
Sep 10, 2010
filing date -
Apr 14, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A charging device for charging a first battery cell and a second battery cell comprises a node, a control circuit, a charging circuit and a current-dividing unit. The control circuit is coupled to the charging circuit, the current-dividing unit, and the first and second battery cells. The control circuit controls the charging circuit to provide a first charge current or a second current for the node which couples to the first battery cell and the current-dividing unit and controls the state of the current-dividing unit. The current-dividing unit is set to share the current flowing into the node and acts as an open circuit in a first state and a resistor of finite resistance in a second state.
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