LEGO-PoL: A 93.1% 54V-1.5V 300A Merged-Two-Stage Hybrid Converter with a Linear Extendable Group Operated Point-of-Load (LEGO-PoL) Architecture
LEGO-PoL: A 93.1% 54V-1.5V 300A Merged-Two-Stage Hybrid Converter with a Linear Extendable Group Operated Point-of-Load (LEGO-PoL) Architecture
复制标题
LEGO-PoL:%20A%2093.1%%2054V-1.5V%20300A%20合并两级%20Hybrid%20转换器%20with%20a%20线性%20可扩展%20Group%20操作%20负载点%20(LEGO-PoL
作者：
J. Baek;Ping;Shuai Jiang;Minjie Chen
本文提出了一种合并的两级线性可扩展组操作负载点 (LEGO-PoL) 架构，针对具有高电压转换比和极高输出电流（数百安培）的应用。在合并的两级LEGO-PoL架构中，许多开关电容器单元串联，将输入电压分成多个电压域，许多降压单元并联连接，将输出电流分成多个电流路径。 LEGO-PoL 架构的一个子模块合并了开关电容器单元和多相降压单元的操作，以创造相互优势。采用降压单元作为电流源对开关电容单元进行软充电和软开关，并利用开关电容单元保证大量降压单元均流。 LEGO-PoL 架构可以线性扩展，以覆盖宽输入电压范围和输出电流范围。模块化单元采用分组操作，自动确保电压平衡和均流。我们构建并测试了峰值效率为 93.1% 的 450W、54V-1.5V、300A LEGO-PoL 架构，以验证所提出方法的有效性。
This paper presents a merged-two-stage Linear Extendable Group Operated Point-of-Load (LEGO-PoL) architecture targeting applications with high voltage conversion ratio and very high output current (a few hundreds Amps). In the merged-two-stage LEGO-PoL architecture, many switched capacitor units are connected in series to split the input voltage into multiple voltage domains, and many buck units are connected in parallel to split the output current into multiple current paths. One submodule of the LEGO-PoL architecture merges the operation of a switched capacitor unit and a multi-phase buck unit to create mutual advantages. The buck units are used as current sources to soft-charge and soft-switch the switched capacitor units, and the switched capacitor units are utilized to ensure current sharing among a large number of buck units. The LEGO-PoL architecture can be linearly-extended to cover wide input voltage range and output current range. The modular units are group-operated to ensure voltage balancing and current sharing automatically. A 450W, 54V-1.5V, 300A LEGO-PoL architecture with a peak efficiency of 93.1% has been built and tested to verify the effectiveness of the proposed approach.
A%2095%-效率%2048V-to-1V/10A%20VRM%20Hybrid%20转换器%20使用%20Interleaved%20Dual%20电感器
DOI：
10.1109/ecce.2018.8557715
发表时间：
2018
期刊：
2018 IEEE Energy Conversion Congress and Exposition (ECCE
影响因子：
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作者：
Seo, Gab-Su;Das, Ratul;Le, Hanh-Phuc
通讯作者：
Le, Hanh-Phuc
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：
--
发表时间：
2019
期刊：
2019 IEEE Applied Power Electronics Conference and Exposition (APEC
影响因子：
--
作者：
Das, Ratul;Le, Hanh-Phuc
通讯作者：
Le, Hanh-Phuc