A Dickson-Squared Hybrid Switched-Capacitor Converter for Direct 48 V to Point-of-Load Conversion

A Dickson-Squared Hybrid Switched-Capacitor Converter for Direct 48 V to Point-of-Load Conversion
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用于直接 48 V 到负载点转换的 Dickson 平方混合开关电容器转换器

DOI:
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发表时间:
2022
期刊:
Applied Power Electronics Conference
影响因子:
--
通讯作者:
R. Pilawa
R. Pilawa
中科院分区:
--
文献类型:
--
作者:
Yicheng Zhu;T. Ge;Zichao Ye;R. Pilawa

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现代和未来的数据中心供电需要更节能和功率密度更高的48v到负载点(PoL)电源转换解决方案。本文提出了一种用于48v - pol直接转换的Dickson-squared混合开关电容器(SC)转换器,具有高效率和高功率密度。所提出的拓扑结构包括一个9对1的SC级(可以看作是两个3对1的Dickson SC转换器组合在一起)和一个9相交错的降压级。所提出的拓扑结构可以通过简单的控制实现完全的软充电操作,确保自然平衡的交错电感电流,减少降压级的转换负担,并消除对具有开关总线结构的大型总线电容器的需求。建立了48 V-to- pol硬件原型来验证所提出的转换器的性能,在1.0 V输出电压下实现了93.8%的峰值效率和360 W/in3的功率密度。
More energy-efficient and power-dense solutions to 48 V to point-of-load (PoL) power conversion are required for modern and future data center power delivery. This paper proposes a Dickson-squared hybrid switched-capacitor (SC) con-verter for direct 48 V-to-PoL conversion with high efficiency and high power density. The proposed topology comprises a 9-to-1 SC stage that can be viewed as two 3-to-1 Dickson SC converters combined together and a nine-phase interleaved buck stage. The proposed topology can achieve complete soft-charging operation with a simple control, ensure naturally balanced interleaved inductor currents, enable reduced conversion burden on the buck stage, and eliminate the need for large bus capacitors with a switching bus architecture. A 48 V-to-PoL hardware prototype is built to verify the performance of the proposed converter, achieving 93.8% peak efficiency and 360 W/in3power density at 1.0 V output voltage.
An%2080-W%2094.6%-高效%20多相%20多电感%20混合%20转换器
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;Seo, Gab-Su;Maksimovic, Dragan;and Le, Hanh-Phuc
通讯作者: and 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