Boost DC-DC Converter with Non-dissipative Snubber

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2024-06-11 DOI:10.1002/tee.24140

Yeu-Torng Yau

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Abstract

To provide a hold-up time function in DC-DC supplies for cell site stations or data centers, using a boost converter with a bulk output capacitor as a front-end converter stage is a simple and highly cost-effective solution. However, conventional boost converters with a hard-switching operation result in low conversion efficiency and increased electromagnetic interference emissions. In this paper, a boost converter with a new non-dissipative snubber is proposed that only requires two additional diodes, an inductor, and a multilayer ceramic capacitor. The main feature of the proposed snubber is that the components are not located on the main power processing path. This means they only require low ratings, improving cost-effectiveness. A prototype converter is analyzed, realized, and applied to a 300 W redundant DC-DC power supply module for a 5G cell base station. © 2024 The Author(s). IEEJ Transactions on Electrical and Electronic Engineering published by Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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带非耗散缓冲器的升压型 DC-DC 转换器

为了在基站或数据中心的直流-直流电源中提供保持时间功能，使用带有散装输出电容器的升压转换器作为前端转换器级是一种简单且极具成本效益的解决方案。然而，传统的升压转换器采用硬开关工作方式，转换效率低，电磁干扰辐射增加。本文提出了一种带有新型非耗散缓冲器的升压转换器，它只需要两个额外的二极管、一个电感器和一个多层陶瓷电容器。所提缓冲器的主要特点是这些元件不位于主电源处理路径上。这意味着它们只需要较低的额定值，从而提高了成本效益。对原型转换器进行了分析、实现，并将其应用于 5G 基站的 300 W 冗余 DC-DC 电源模块。© 2024 作者姓名IEEJ Transactions on Electrical and Electronic Engineering 由日本电气工程师学会和 Wiley Periodicals LLC 出版。

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来源期刊

IEEJ Transactions on Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

2.70

自引率

10.00%

发文量

199

审稿时长

4.3 months

期刊介绍： IEEJ Transactions on Electrical and Electronic Engineering (hereinafter called TEEE ) publishes 6 times per year as an official journal of the Institute of Electrical Engineers of Japan (hereinafter "IEEJ"). This peer-reviewed journal contains original research papers and review articles on the most important and latest technological advances in core areas of Electrical and Electronic Engineering and in related disciplines. The journal also publishes short communications reporting on the results of the latest research activities TEEE ) aims to provide a new forum for IEEJ members in Japan as well as fellow researchers in Electrical and Electronic Engineering from around the world to exchange ideas and research findings.