CHARGE/DISCHARGE PROTECTION CIRCUIT AND DISCHARGING PROTECTION METHOD
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United States of America Patent
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Issued Date -
Mar 10, 2011
app pub date -
Oct 29, 2009
filing date -
Sep 8, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A charge/discharge protection circuit adapted in an electronic apparatus and a discharge protection method are provided. The charge/discharge protection circuit comprises a positive electrode, a ground for discharging, a switch module, a battery module, a negative electrode for charging, a sensing device and a control module. The battery module is electrically connected to the switch module and the ground to form a discharging path. The switch module is electrically connected to the positive electrode. The sensing device is electrically connected to the battery module and the negative electrode to form a charging path. The sensing device passively disconnects the charging path when the charging path is abnormal. The control module actively turns the switch open when the discharging path, the charging path or the battery module is abnormal.
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