Battery state monitoring circuitry with low power consumption during a stand-by-state of a battery pack
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United States of America Patent
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May 3, 2011
Grant Date -
Jul 8, 2010
app pub date -
Mar 23, 2010
filing date -
Mar 7, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A battery pack including at least one battery cell, a switch, and battery state monitoring circuitry. The battery state monitoring circuitry may be configured to control an ON resistance of the switch to a first ON resistance when the switch is ON and the battery pack is in a stand-by-state and to control the ON resistance to a second ON resistance when the switch is ON and said battery pack is not in said stand-by-state, the first ON resistance greater than the second ON resistance. A cordless electrical device and method consistent with embodiments are also provided.
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