Abstract
When the input voltage range is wide, Four-switch Buck-Boost (FSBB) converter usually needs to work in three operating modes (Buck, Boost and Buck-Boost). How to achieve smooth switching between modes is a key issue that needs to be solved. In this paper, a three-mode peak current control strategy for FSBB converter is proposed. Compared with traditional voltage control strategy, this strategy has smaller output voltage fluctuation and shorter recovery time when the mode is switched. In addition, a time-domain simulation model is established to verify that the proposed control strategy has excellent transient performance in mode switching. Finally, an FSBB experimental prototype with an input voltage of 36 ~ 72 V and an output voltage of 48 V was built in the laboratory to verify the effectiveness of the proposed control strategy.
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Deng, K., Xu, J., Liu, F. (2023). Three-Mode Peak Current Control Strategy for the Four-Switch Buck-Boost Converter. In: Yang, Q., Dong, X., Ma, W. (eds) The proceedings of the 10th Frontier Academic Forum of Electrical Engineering (FAFEE2022). FAFEE 2022. Lecture Notes in Electrical Engineering, vol 1048. Springer, Singapore. https://doi.org/10.1007/978-981-99-3404-1_119
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DOI: https://doi.org/10.1007/978-981-99-3404-1_119
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