Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications

IF 5 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE open journal of power electronics Pub Date : 2025-01-14 DOI:10.1109/OJPEL.2024.3471670

Samantha Coday;Elisa Krause;Margaret E. Blackwell;Rahul K. Iyer;Nathan M. Ellis;Ansel Barchowsky;Robert C.N. Pilawa-Podgurski

{"title":"Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications","authors":"Samantha Coday;Elisa Krause;Margaret E. Blackwell;Rahul K. Iyer;Nathan M. Ellis;Ansel Barchowsky;Robert C.N. Pilawa-Podgurski","doi":"10.1109/OJPEL.2024.3471670","DOIUrl":null,"url":null,"abstract":"To enable next generation robotic space exploration, innovations in the area of high step-down voltage converters is necessary. This work explores the use of multilevel hybrid switched-capacitor power converters which have unique advantages in mass-critical and harsh radiation space environments. A composite converter topology is presented which utilizes two different hybrid switched-capacitor converters in a partial power processing system. First, a fixed-ratio capacitively-isolated resonant Dickson converter is designed for a high step-down conversion ratio and to process the majority of the system power. In addition, a flying capacitor multilevel (FCML) converter is designed to provide regulation over a wide range of input voltages. The optimization of each converter is discussed, with careful attention dedicated to the minimization of passive component mass. The hardware results for each converter and the full composite system are presented, showcasing a system efficiency of over 96% for a nominal 15:1 conversion ratio with regulation capability.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"6 ","pages":"150-161"},"PeriodicalIF":5.0000,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10841370","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE open journal of power electronics","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10841370/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

To enable next generation robotic space exploration, innovations in the area of high step-down voltage converters is necessary. This work explores the use of multilevel hybrid switched-capacitor power converters which have unique advantages in mass-critical and harsh radiation space environments. A composite converter topology is presented which utilizes two different hybrid switched-capacitor converters in a partial power processing system. First, a fixed-ratio capacitively-isolated resonant Dickson converter is designed for a high step-down conversion ratio and to process the majority of the system power. In addition, a flying capacitor multilevel (FCML) converter is designed to provide regulation over a wide range of input voltages. The optimization of each converter is discussed, with careful attention dedicated to the minimization of passive component mass. The hardware results for each converter and the full composite system are presented, showcasing a system efficiency of over 96% for a nominal 15:1 conversion ratio with regulation capability.

查看原文本刊更多论文

空间应用gan复合混合开关电容DC-DC变换器的设计与实现

为了实现下一代机器人空间探索，高降压转换器领域的创新是必要的。本工作探索了在质量临界和恶劣辐射空间环境中使用具有独特优势的多电平混合开关电容器功率变换器。提出了一种复合变换器拓扑结构，该拓扑结构在部分功率处理系统中使用了两个不同的混合开关电容器变换器。首先，设计了一种固定比电容隔离谐振Dickson变换器，以获得高降压转换率并处理大部分系统功率。此外，飞电容多电平（FCML）转换器的设计提供了一个大范围的输入电压调节。讨论了每个变流器的优化，并特别注意使无源元件质量最小化。给出了每个转换器和完整组合系统的硬件结果，显示了系统效率超过96%，标称的15:1转换比具有调节能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊