A Power Management IC Used for Protection System of Li-Ion Battery Packs

Hao, Yunqiang; Xi, Jianxiong; He, Lenian

doi:10.1109/icpes47639.2019.9105561

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…We thank the ICPES 2019 committee for receiving our former research paper [5], which can be retrieved in https:// ieeexplore.ieee.org/document/9105561. This work was supported by the Guangdong Province's Key R&D Program, China (grant number 2019B010143002).…”

Section: Acknowledgmentsmentioning

confidence: 99%

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A Power Management IC Used for Monitoring and Protection of Li‐Ion Battery Packs

Hao

Yi²,

Zhang

et al. 2021

Journal of Sensors

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A power management system is a critical component of the system which needs Li-ion battery packs for power supply. This paper proposes a fully integrated, high-precision, and high-reliability Integrated Circuit (IC) for the power management system of Li-ion battery packs. It has full protection circuits including overvoltage, overtemperature, and overcurrent circuits with measuring voltage accuracy of 0.2 mV and a 15-bit internal Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC). This IC is designed to protect the system automatically and measure the battery cells’ voltage, temperature, and charging or discharging current with high precision. It also provides an I2C interface to communicate with an external Microcontroller Unit (MCU), making it achievable to perform battery cells’ voltage balancing and SOC estimation with 0.1% estimation accuracy in an hour.

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Section: Acknowledgmentsmentioning

confidence: 99%

“…We note that a shorter conference version of this paper appeared in Hao et al [5]. Our initial conference paper focused on the protection and security of the system and did not address the detailed realization of the highprecision sampling of battery voltages and current amplitude.…”

Section: Introductionmentioning

confidence: 99%