An evaluation methodology for the Li-Ion battery multiplexed voltage measurement systems

Abstract : In modern era the utilization of battery empowered systems is growing exponentially. In the goal to achieve an optimal system performance, the employment of a BMS (Battery Management System) is inevitable. Data acquisition is an elementary operation of the BMS. Usually a battery is composed of several cells. Therefore, a multiplexed ADC (A/D Converter) is employed for acquiring each cell data. It renders an effective solution in terms of cost and power consumption. However, the multiplexing can render A/D conversion latencies. In this context a performance comparison between two multiplexed data acquisition systems, based respectively on the SigmaDelta and the SAR (Successive Approximation Register) ADCs is made. The application is to measure the Li-Ion battery voltage. A measurement methodology is presented. The pros and cons of both considered systems are described with the experimental results.
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Contributor : Dominique Dallet <>
Submitted on : Friday, January 28, 2011 - 11:00:33 AM
Last modification on : Thursday, January 11, 2018 - 6:21:07 AM

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Saed Mian Qaisar, Dominique Dallet, Philippe Deprez, Sébastien Benjamin. An evaluation methodology for the Li-Ion battery multiplexed voltage measurement systems. IEEE International Instrumentation and Measurement Technology Conference - I2MTC, 2010, Austin, United States. pp.785-788, ⟨10.1109/IMTC.2010.5488194⟩. ⟨hal-00560370⟩

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