300A Single-stage 48V Voltage Regulator with Multiphase Current Doubler Rectifier and Integrated Transformer

300A Single-stage 48V Voltage Regulator with Multiphase Current Doubler Rectifier and Integrated Transformer
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具有多相倍流整流器和集成变压器的 300A 单级 48V 稳压器

DOI:
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发表时间:
2022
期刊:
Applied Power Electronics Conference
影响因子:
--
通讯作者:
Qiang Li
Qiang Li
中科院分区:
--
文献类型:
--
作者:
Xin Lou;Qiang Li

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高电流、高功率密度 48V 稳压器模块 (VRM) 对于 48V 数据中心电源架构至关重要。在本文中,为数据中心应用中的 CPU 提出了一种具有多相电流倍增器整流器的单级 48V 转换器。矩阵变压器的励磁电感用作多相倍流整流器的输出电感。提出并优化了矩阵变压器的磁集成结构,该结构在多相倍流整流器之间产生负耦合。使用GaN器件作为初级侧器件和低压硅器件作为次级同步整流器(SR),所提出的转换器可以实现高效率和高功率密度。设计了48/1.8V 300A转换器,预计峰值效率可达93%,功率密度为1.9 kW/in3。
High-current, high-power-density 48V voltage regulator modules (VRMs) are critical for 48V data center power architecture. In the paper, a single-stage 48V converter with multiphase current doubler rectifiers is proposed for CPUs in data center applications. The magnetizing inductors of the matrix transformer are used as the output inductors of the multiphase current doubler rectifier. A magnetic integration structure for the matrix transformer is proposed and optimized, which creates negative coupling between multiphase current doubler rectifiers. With GaN devices as primary side devices and low voltage silicon devices as secondary synchronous rectifiers (SRs), the proposed converter can achieve high efficiency and high power density. A 48/1.8V 300A converter is designed, which can reach an estimated peak efficiency of 93% and a power density of 1.9 kW/in3.
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