Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications
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...
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Open Journal of Power Electronics |
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| Online Access: | https://ieeexplore.ieee.org/document/10841370/ |
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| author | Samantha Coday Elisa Krause Margaret E. Blackwell Rahul K. Iyer Nathan M. Ellis Ansel Barchowsky Robert C.N. Pilawa-Podgurski |
| author_facet | Samantha Coday Elisa Krause Margaret E. Blackwell Rahul K. Iyer Nathan M. Ellis Ansel Barchowsky Robert C.N. Pilawa-Podgurski |
| author_sort | Samantha Coday |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-b45033c564eb4f85b065c491a5a2074f |
| institution | Kabale University |
| issn | 2644-1314 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Power Electronics |
| spelling | doaj-art-b45033c564eb4f85b065c491a5a2074f2025-01-21T00:02:40ZengIEEEIEEE Open Journal of Power Electronics2644-13142025-01-01615016110.1109/OJPEL.2024.347167010841370Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space ApplicationsSamantha Coday0https://orcid.org/0000-0001-9205-9963Elisa Krause1https://orcid.org/0000-0003-0030-359XMargaret E. Blackwell2https://orcid.org/0000-0003-0465-4741Rahul K. Iyer3https://orcid.org/0000-0001-8139-5304Nathan M. Ellis4https://orcid.org/0000-0003-0482-9978Ansel Barchowsky5Robert C.N. Pilawa-Podgurski6https://orcid.org/0000-0002-5360-5906Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USADepartment of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USADepartment of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USADepartment of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USADepartment of Electrical and Computer Engineering, University of California, Santa Cruz, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USADepartment of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USATo 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.https://ieeexplore.ieee.org/document/10841370/Hybrid switched capacitor converterspace technologypartial power processing and capacitive-based isolation |
| spellingShingle | Samantha Coday Elisa Krause Margaret E. Blackwell Rahul K. Iyer Nathan M. Ellis Ansel Barchowsky Robert C.N. Pilawa-Podgurski Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications IEEE Open Journal of Power Electronics Hybrid switched capacitor converter space technology partial power processing and capacitive-based isolation |
| title | Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications |
| title_full | Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications |
| title_fullStr | Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications |
| title_full_unstemmed | Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications |
| title_short | Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications |
| title_sort | design and implementation of a gan based composite hybrid switched capacitor dc dc converter for space applications |
| topic | Hybrid switched capacitor converter space technology partial power processing and capacitive-based isolation |
| url | https://ieeexplore.ieee.org/document/10841370/ |
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