Battery Cell Voltage Sensing and Balancing Using Addressable Transformers

Davies, Francis

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NASA NTRS · 20090032082

Battery Cell Voltage Sensing and Balancing Using Addressable Transformers

Davies, Francis

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Abstract

A document discusses the use of saturating transformers in a matrix arrangement to address individual cells in a high voltage battery. This arrangement is able to monitor and charge individual cells while limiting the complexity of circuitry in the battery. The arrangement has inherent galvanic isolation, low cell leakage currents, and allows a single bad cell in a battery of several hundred cells to be easily spotted.

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Davies, Francis. 2009-09-01. Battery Cell Voltage Sensing and Balancing Using Addressable Transformers. https://ntrs.nasa.gov/citations/20090032082

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