An 80-W 94.6%-Efficient Multi-Phase Multi-Inductor Hybrid Converter

被引:32
|
作者
Das, Ratul [1 ]
Seo, Gab-Su [2 ]
Maksimovic, Dragan [1 ]
Hanh-Phuc Le [1 ]
机构
[1] Univ Colorado, Dept Elect & Comp Engn, Boulder, CO 80309 USA
[2] Natl Renewable Energy Lab, Power Syst Engn Ctr, Golden, CO USA
关键词
Hybrid converter; complete soft-charging; switched capacitor network; capacitance optimization; multi phase operation;
D O I
10.1109/APEC.2019.8721952
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This paper presents a new Multi-Phase Multi-Inductor Hybrid (MP-MIH) converter that features high efficiency at large conversion ratios, while operating the switches with duty cycles larger than state-of-the-art hybrid topologies. In this converter, the capacitors are soft-charged and soft-discharged through three inductors operated in three interleaving phases. An experimental six-level three-phase converter prototype achieves 94.6% peak efficiency and 425 W/in 3 power density for conversions from 48V to 1V-2V at loads of up to 40A. This multi-phase multi-inductor hybrid converter architecture can be extended to any number of switched-capacitor network levels to support wide range of input and output voltages and load currents in data centers, telecommunication and other high-performance digital systems.
引用
收藏
页码:25 / 29
页数:5
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