High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application
High Step-Down Single-Stage DC-DC Converter with Improved Planar Matrix Transformer for High-Current Data Center Application
复制标题
具有改进的平面矩阵变压器的高降压单级 DC-DC 转换器，适用于大电流数据中心应用
DOI：
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
M. Andersen
中科院分区：
文献类型：
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作者：
Chang Wang;Mingxiao Li;Z. Ouyang;Zhe Zhang;Gabriel Zsurzsan;M. Andersen
信息技术的洪流赋予了当今数据中心重要的作用。由于在数据中心操作中报告了大量的能量消耗，因此数据中心中的负载点（POL）转换器需要高效率和高功率密度以输出用于特定服务器的大电流。采用改进的矩阵磁芯沿着绕组交错集成的方法，设计了一种四相LLC变换器。通过交错和集成策略实现了均衡的均流和较小的导通损耗。在500 kHz开关频率下，采用40 V-48 V/5V-6V电压转换，搭建了800 W LLC实验样机。实验结果表明，在功率密度为240 W/in 3时，器件的最大效率达到了沿着的98.1%。出色的热性能实现了沿着提供更多功率的潜力。
The torrent of information technology assigns a significant role to the nowaday data center. Since substantial energy consumption is reported in data center operation, the point-of-load (POL) converter in data center desiderates high efficiency and high power density to output a large current for the specific server. A 4-phases LLC converter is designed by implementing an improved matrix magnetic core along with the interleaving and integration of windings. Balanced current sharing and less conduction loss are achieved by the interleaving and integration strategies. An 800 W LLC experimental prototype is built under 500 kHz switching frequency with 40V-48V/5V-6V voltage conversion. Peak efficiency achieves 98.1% along with power density of 240 W/in3 with the experimental result. Excellent thermal performance is achieved along with the potential for delivering more power.
A%20稳压%2048V至1V/100A%2090.9%高效%20混合%20转换器%20for%20POL%20应用%20in%20数据%20中心%20和%20电信%20系统
DOI：
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发表时间：
2019
期刊：
2019 IEEE Applied Power Electronics Conference and Exposition (APEC
影响因子：
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作者：
Das, Ratul;Le, Hanh-Phuc
通讯作者：
Le, Hanh-Phuc