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This paper proposes a new battery management system (BMS) for Li-ion battery packs of multi cells in series. The proposed BMS employs a master-slave control mode. The whole system is composed of a master processor and a string of slave manager cells (SMCs). Each battery cell corresponds to an SMC. Differing from the conventional BMS, the proposed one has a novel method for data acquisition and communication...
This paper introduces a method of realizing a monolithic battery management chip for a lithium ion battery pack of multi-cell in series. High precision subtractor amplifiers were employed to extract the voltage information of each battery. With the utilization of the subtractor amplifiers, the whole system was allowed to be implemented in a normal, nonexpensive standard CMOS process with 5 V supply...
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