Distributed multi-module battery equalization

Details Distributed multi-module battery equalization Distributed multi-module battery equalization

1995-01-23

1997-01-07

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 39, H01M 1046

Patent

active

055920675

ABSTRACT:
An apparatus and method are disclosed for equalizing individual module voltages in a multiple module battery pack during recharging. Two individual module voltages are compared, and charge redistribution is caused to occur by way of switched mode converters when the voltages are not equivalent. Switched mode converters may be of unidirectional or bidirectional topologies.

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Hopkins, D. C.; "The Use of Equalizing Converters for Serial Charging of Long Battery Strings"; Jun. 1991; IEEE.
IEEE Transactions on Industry Applications, vol. 29, No. 2, Apr. 1993.
D. Hopkins et al. "Dynamic Equalization During Charging of Serial Energy Storage Elements", pp. 363-367.

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