Power management circuit for battery pack

Details Power management circuit for battery pack Power management circuit for battery pack

2006-12-26

2010-06-15

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S136000, C320S150000

Reexamination Certificate

active

07737662

ABSTRACT:
A power system for managing charging, discharging and protection of rechargeable batteries is disclosed. The power system mainly includes a power system. The power system includes a switching circuit coupled to the rechargeable batteries to charge and discharge the rechargeable batteries. The power system includes a power management unit to control the switching circuit. The power system includes a temperature sensing circuit to monitor a temperature of the batteries, voltage detectors to monitor voltages of the batteries, and current detectors to monitor a current of the batteries. If an abnormal condition is sensed by the power management unit when the power system is in an operating mode, the power management unit will terminate the operating mode by switching off the switching circuit to protect the batteries and the power system.

REFERENCES:
patent: 6208117 (2001-03-01), Hibi
patent: 6329796 (2001-12-01), Popescu
patent: 6441592 (2002-08-01), Rothleitner et al.
patent: 2005/0285572 (2005-12-01), Geren et al.

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