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Paper Abstract and Keywords
Presentation 2026-05-18 11:30
Thermal-Aware Behavioral Simulation Model Development of a 1.5 MW Converter Utilizing Vertical GaN for Electric Aircraft Applications
Raymond Borres, Karl Raymond Roque, Yu Yonezawa, Masayoshi Yamamoto (Nagoya Univ.) EE2026-2
Abstract (in Japanese) (See Japanese page) 
(in English) Megawatt-class electrified aviation demands power densities beyond traditional silicon limits. This paper presents a thermal-aware behavioral simulation model for a 1.5 MW vertical Gallium Nitride (vGaN) DC-DC converter. Overcoming computational bottlenecks of multi-module high-frequency arrays, baseline SPICE characteristics were mapped into MATLAB/Simscape via 2D look-up tables. This methodology enables rapid system-level evaluation with under 0.5% error, validating a 150-module liquid-cooled architecture achieving 97.0% efficiency. Furthermore, a 2040 technology roadmap integrating 1200 V vGaN and MHz-level switching demonstrates a pathway to reaching 99.0% efficiency and a power density exceeding 50 kW/kg.
Keyword (in Japanese) (See Japanese page) 
(in English) Behavioral Modeling / Gravimetric Power Density / Megawatt-Class System / Input-Parallel Output-Parallel (IPOP) / Thermal Management / Electric Aircraft / DC-DC Converter / Vertical GaN  
Reference Info. IEICE Tech. Rep., vol. 126, no. 27, EE2026-2, pp. 7-12, May 2026.
Paper # EE2026-2 
Date of Issue 2026-05-11 (EE) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EE2026-2

Conference Information
Committee EE IEE-HCA  
Conference Date 2026-05-18 - 2026-05-18 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2026-05-EE-HCA 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Thermal-Aware Behavioral Simulation Model Development of a 1.5 MW Converter Utilizing Vertical GaN for Electric Aircraft Applications 
Sub Title (in English)  
Keyword(1) Behavioral Modeling  
Keyword(2) Gravimetric Power Density  
Keyword(3) Megawatt-Class System  
Keyword(4) Input-Parallel Output-Parallel (IPOP)  
Keyword(5) Thermal Management  
Keyword(6) Electric Aircraft  
Keyword(7) DC-DC Converter  
Keyword(8) Vertical GaN  
1st Author's Name Raymond Borres  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Karl Raymond Roque  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Yu Yonezawa  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
4th Author's Name Masayoshi Yamamoto  
4th Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2026-05-18 11:30:00 
Presentation Time 30 minutes 
Registration for EE 
Paper # EE2026-2 
Volume (vol) vol.126 
Number (no) no.27 
Page pp.7-12 
#Pages 6 
Date of Issue 2026-05-11 (EE) 

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