飞行电容器LLC变换器:一种用于大降压应用的具有电隔离的混合开关电容器变换器

IF 1 4区工程技术 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Compel-The International Journal for Computation and Mathematics in Electrical and Electronic Engineering Pub Date : 2023-06-25 DOI:10.1109/COMPEL52896.2023.10221073

L. Horowitz, Nathan C. Brooks, N. Ellis, R. Pilawa-Podgurski

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引用次数: 0

摘要

在这项工作中，我们结合了两种流行的功率转换拓扑，飞行电容器多电平(FCML)转换器和LLC转换器，得出了具有各自优点的飞行电容器LLC (FCLLC)解决方案。FCLLC包括一个降压谐振开关电容器(ReSC)级，随后是一个基于谐振变压器的级，该级为飞行电容器提供软充电、电流隔离和通过变压器的额外降压。这些转换比率成倍增加，使FCLLC特别适合极端转换比率。制作了一个能够直接从400V转换到1V的FCLLC原型，这证明了这种拓扑结构在未来数据中心应用中的潜力。

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The Flying Capacitor LLC Converter: A Hybrid Switched Capacitor Converter with Galvanic Isolation for Large Step-Down Applications

In this work, we combine two popular power conversion topologies, the flying capacitor multilevel (FCML) converter and the LLC converter, to arrive at the proposed flying capacitor LLC (FCLLC) solution with advantages of each. The FCLLC comprises a step-down resonant switched-capacitor (ReSC) stage followed by a resonant transformer-based stage which provides soft charging of the flying capacitors, galvanic isolation, and an additional step-down through the transformer. These conversion ratios are multiplied, making the FCLLC especially suited for extreme conversion ratios. An FCLLC prototype capable of direct 400V to 1V conversion is fabricated, which demonstrates the potential this topology has for future datacenter applications.

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来源期刊

Compel-The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

1.60

自引率

0.00%

发文量

124

审稿时长

4.2 months

期刊介绍： COMPEL exists for the discussion and dissemination of computational and analytical methods in electrical and electronic engineering. The main emphasis of papers should be on methods and new techniques, or the application of existing techniques in a novel way. Whilst papers with immediate application to particular engineering problems are welcome, so too are papers that form a basis for further development in the area of study. A double-blind review process ensures the content''s validity and relevance.