Method and system for cell equalization with isolated...

Details Method and system for cell equalization with isolated... Method and system for cell equalization with isolated...

2011-04-19

2011-04-19

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

C320S120000, C320S134000, C320S138000, C702S063000, C307S043000, C307S082000

Reexamination Certificate

active

07928691

ABSTRACT:
A system and method for charging a rechargeable, or secondary, battery including a series string of battery cells, a topology of charging sources that selectively provides charging current to battery cells that need to be charged, but avoids overcharging battery cells that are already charged above a predetermined voltage threshold. Based on individual cell voltage measurements, the charging current is controlled in a manner to direct charging current to the battery cell(s) needing charge until these cells are fully charged, and bypasses battery cells that are fully charged or become fully charged.

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