Battery power source device and current detection method therefor
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United States of America Patent
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Jul 13, 2004
Grant Date -
Jun 5, 2003
app pub date -
Nov 26, 2002
filing date -
Nov 30, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A plurality of battery pack blocks connected in series-parallel have their operation states monitored by battery ECUs, respectively based on detected voltage, current, and temperature. Detection outputs by current sensors provided at the charge/discharge circuits of the battery pack blocks are added up for the parallel-connected battery pack blocks in an analog data state before A/D conversion, so that the total charge/discharge current in the battery power source device is obtained.
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