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
复制标题
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:
影响因子:
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通讯作者:
R. Pilawa
中科院分区:
文献类型:
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作者:
Yicheng Zhu;T. Ge;Zichao Ye;R. Pilawa
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.
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