Implementation of Bang-Bang Charge Control for an LLC Resonant Converter for Battery Charger

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dc.contributor.authorPotjanatkomol, Natkamol
dc.contributor.authorPolmai, Sompob
dc.contributor.authorWiangtong, Theerayod
dc.date.accessioned2026-08-06T10:48:45Z
dc.date.available2026-08-06T10:48:45Z
dc.date.issued2025-01-01
dc.description.abstractThis paper presents the design of a 2-kW full-bridge LLC resonant converter for battery charger operating in a range of DC input voltages of 380-420 V and output voltage of 60 V. The bang-bang charge control technique, whose controller adjusts the threshold voltage of the bang-bang comparators, is adopted for controlling the converter switching frequency. This control method provides fast single-pole control-to-output transfer function resulting in simplicity of controller design. In this paper the design procedure of LLC converter resonant circuit is presented and a prototype is built. The discrete-time PI compensator for constant voltage (CV) and constant current (CC) control is implemented using STM32 microcontroller. The simulation and experimental results show satisfactory control characteristics.
dc.identifier.citation2025 7th International Conference on Power Energy and Innovations Icpei 2025 Proceedings, 2025
dc.identifier.doi10.1109/ICPEI66116.2025.11282651
dc.identifier.other2-s2.0-105031645565
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16334
dc.source2025 7th International Conference on Power Energy and Innovations Icpei 2025 Proceedings
dc.subjectbang-bang charge control
dc.subjectbattery charger
dc.subjectLLC resonant converter
dc.titleImplementation of Bang-Bang Charge Control for an LLC Resonant Converter for Battery Charger
dc.typeConference Paper

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