A 5V-to-150V Input-Parallel Output-Series Hybrid DC-DC Boost Converter Achieving 76.4mW/mg Power Density and 80% Peak Efficiency

📋 论文概要

本文提出了一种5V至150V输入并联输出串联混合DC-DC升压转换器，通过混合拓扑结构实现了超高电压转换比，解决了传统升压转换器在大占空比下效率低和电压转换比受限的问题。

💡 主要创新点

• 采用输入并联输出串联的混合拓扑结构，显著提高了电压转换比并降低了器件电压应力。
• 实现了76.4mW/mg的功率密度和80%的峰值效率，适用于生物医学、光学和传感等高压应用。

🏷 关键词

📄 原文摘要

essential for biomedical, optics, sensing and diagnostics applications. For realizing an ultrahigh VCR, the conventional boost converter would result in a large duty ratio D, a large inductor current IL and thus a significantly degradation on power efficiency, and its VCR is limited by the parasitic resistors. Figure 8.10.1 top shows the recently reported hybrid boost converters. The multilevel boost converter (MLBC) has a single inductor at the input, and has the feature of input-series-output-series. Therefore, multilevel boost converters considerably improve the VCR and reduce the device voltage stress with the flying capacitors. However, the MLBC topologies still suffer from the problems of low efficiency and low power density caused by the large IL. Another topology with multipath boost

👥 作者与机构

Shousheng Han1,2, Zanfeng Fang1, Zhiguo Tong1, Xiaoming Wu2, Hanjun Jiang2,

Tianling Ren2, Yan Lu1 University of Macau, Macau, China Tsinghua University, Beijing, China 1 2 Ultrahigh voltage conversion ratio (VCR) DC-DC boost converters are