Battery cell balancing systems using current regulators

Details Battery cell balancing systems using current regulators Battery cell balancing systems using current regulators

2011-07-05

2011-07-05

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

Having variable number of cells or batteries in series

Reexamination Certificate

active

07973514

ABSTRACT:
According to one embodiment of the invention, there is provided a cell balancing circuit used for balancing a cell. The cell balancing circuit includes a bypass path coupled to the cell, a current regulator coupled to the bypass path, and a bleeding control switch. The current regulator is operable for producing a current and for controlling a conductance status of the bypass path. The bleeding control switch conducts the bypass path in response to the current produced by the current regulator.

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patent: 7471064 (2008-12-01), Sobue et al.
patent: 2005/0112420 (2005-05-01), Lai et al.
patent: 2008/0088277 (2008-04-01), Wang et al.
patent: 1221880 (2003-06-01), None
patent: 2790010 (2006-06-01), None
English Translation of Office Action from China Patent office for Application No. 2007101631129.

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