Design and Analysis of Single-Inductor Power Converter for Both Battery Balancing and Voltage Regulation

Autor:	Jung-Ik Ha, Jun Lee, Gwangyol Noh
Rok vydání:	2022
Předmět:	Battery (electricity) business.industry Computer science Electrical engineering Topology (electrical circuits) Inductor Battery pack Multi-objective optimization Power (physics) Control and Systems Engineering Voltage regulation Electrical and Electronic Engineering business Power density
Zdroj:	IEEE Transactions on Industrial Electronics. 69:2874-2884
ISSN:	1557-9948 0278-0046
DOI:	10.1109/tie.2021.3065606
Popis:	In this paper, a highly efficient battery-balancing circuit with output voltage regulation for mobile applications is proposed and analyzed. The proposed circuit performs a cell balancing operation for series-connected multiple battery cells and voltage regulation operation simultaneously without additional power conversion stages. Therefore, it can be integrated into a battery pack with maximized power density and efficiency. These features are essential for recent low-power applications with multiple batteries, such as wireless/smart speakers, drones, and electronic point of sale that require high power density. The operational principle, electrical modeling, and trade-off relationship between system power losses and balancing characteristics are derived, and the optimal design candidates of the proposed topology are discussed in terms of Pareto optimization. The effectiveness of the proposed system was verified with a prototype board using GaN switches, and 96.05% efficiency was achieved with a 1.8 V, 0.5 A load.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::22a8883a5083538f607cc0ef7c510fbb https://doi.org/10.1109/tie.2021.3065606 Zobrazit plný text záznamu