System for balancing a plurality of battery pack system...

Details System for balancing a plurality of battery pack system... System for balancing a plurality of battery pack system...

2011-02-01

2011-02-01

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With individual charging of plural batteries or cells

C320S116000, C320S134000

Reexamination Certificate

active

07880434

ABSTRACT:
A system for balancing a plurality of battery pack system modules connected in series comprising: a plurality of battery pack system modules, wherein a high charge module of the plurality of battery pack system modules has a charge greater than a that of other modules. At least one zener diode connected in series with a current limiting resistor is connected in parallel to the plurality of battery pack system modules. A power source is in communication with a disconnect circuit of at least one of the battery pack system modules. The disconnect circuit is actuated when the battery pack system module reaches a predetermined state of charge. The zener diode enables current from the power source to bypass charged battery pack system modules to charge other battery pack system modules.

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patent: 2009/0251100 (2009-10-01), Incledon et al.

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