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pp. 2557-2566
S&M4453 Research paper https://doi.org/10.18494/SAM5754 Published: May 22, 2026 Voltage Reflex and Equalization Charger for Series-connected Batteries [PDF] Cheng-Tao Tsai and Jia-Wei Lin (Received May 27, 2025; Accepted January 5, 2026) Keywords: series-connected, lithium iron phosphate, real-time monitoring
In this paper, a charger with the functions of voltage reflex and equalization is proposed. The proposed charger for series-connected lithium iron phosphate (LFP) batteries has the following advantages: (1) a voltage reflex circuit is used to obtain a fast charging response and high charging efficiency, and (2) a voltage equalization circuit is used to obtain a voltage balance and extend the lifecycle. Additionally, to achieve the protective functions for charging voltage and current, the proposed charger incorporates a real-time monitoring circuit with LED indictors. Finally, to verify its feasibility, we built a prototype of the voltage reflex and equalization charger. The experimental results are presented to demonstrate the performance of the voltage reflex and equalization charger.
Corresponding author: Cheng-Tao Tsai![]() ![]() This work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Cheng-Tao Tsai and Jia-Wei Lin, Voltage Reflex and Equalization Charger for Series-connected Batteries, Sens. Mater., Vol. 38, No. 5, 2026, p. 2557-2566. |