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
复制标题
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:
影响因子:
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通讯作者:
Qiang Li
中科院分区:
文献类型:
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作者:
Xin Lou;Qiang Li
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.
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;Seo, Gab-Su;Maksimovic, Dragan;and Le, Hanh-Phuc
通讯作者:
and Le, Hanh-Phuc
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