基于实时电流控制的FSBB+LLC两级式48V电压调节模块分析与设计
nalysis and Design of Two-Stage 48V VRM Based on Real-Time Current Control for FSBB-LLC
随着AI、云计算等信息技术的高速发展，数据中心的能量消耗在不断增加，引发了数据中心供电母线电压从12V向48V的转变，研究新一代48V转1V 变换器对于减少数据中心能源消耗，减小母线体积、提高CPU、GPU供电效率具有重要意义。在这些背景下，本文针对48V母线服务器架构，设计了一种四开关buck-boost和LLC的两级式48V电压调节模块，并针对FSBB变换器提出了一种实时电流控制方法，实现了全负载范围内的开关管零电压开通，且在升降压模式间实现了平滑切换。最后搭建了一个200W的实验样机。
With the rapid development of information technology such as AI and cloud computing, the energy consumption of data centers continues to increase. This has led to a transition of the power supply bus voltage from 12V to 48V. The research on the new generation of 48V to 1V converter is of great significance for reducing energy consumption, reducing bus volume, and improving the power supply efficiency of CPUs and GPUs in data centers. In this context, this paper designs a two-stage 48V voltage regulation module that combines a four-switch buck-boost converter and an LLC converter for the 48V bus server architecture. A real-time current control method is proposed for the FSBB converter to achieve zero-voltage switching of switching tubes within the full load range, and smooth switching between boosting and bucking modes. Finally, a 200W experimental prototype was built.
张相军、管乐诗、温兆亮、唐伟铭、王懿杰、徐殿国
变压器、变流器、电抗器电气化、电能应用自动化技术、自动化技术设备
电力电子四开关Buck-Boost+LLC电流控制48V电压调节模块
Power electronicsFSBB+LLCCurrent control48V VRM
张相军,管乐诗,温兆亮,唐伟铭,王懿杰,徐殿国.基于实时电流控制的FSBB+LLC两级式48V电压调节模块分析与设计[EB/OL].(2023-05-10)[2025-07-16].http://www.paper.edu.cn/releasepaper/content/202305-35.点此复制
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