Choi Sihoon
自己紹介/Self Introduction
Sihoon Choi received his B.S. degree in energy systems engineering from Chung-Ang University, Seoul, South Korea, in 2019, and M.S. and Ph.D. degrees in electrical engineering from Nagoya University, Nagoya, Japan in 2022 and 2025, respectively.
He was an Associate Research Engineer with Automotive Power Development Team, LG Innotek, Seoul, South Korea, from 2019 to 2020.
Since 2025, he has been a Designated Assistant Professor at Nagoya University in Institute of Materials and Systems for Sustainability (IMaSS).
研究内容/RESEARCH CONTENT
- ・Power electronics
- ・Power module packaging
- ・Passive components
- ・Analog and digital control
論文/PUBLICATION
Journal paper
[1] “Derivation of Resonant Period for Soft Switching Considering Nonlinear Characteristics of Output Capacitance in Switching Device”
Sihoon Choi, Ayato Suzuki, Jun Imaoka, and Masayoshi Yamamoto
IEEJ Journal of Industry Applications, vol. 12, no. 3, pp. 289-294, May 2023.
[2] “Voltage-Controlled Variable Inductor for Fixed-Frequency Critical Conduction Mode Operation”
Sihoon Choi, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Transactions on Industrial Electronics, vol. 70, no. 6, pp. 5707-5716, June 2023.
[3] “Design of Coupled Inductor Using Powder Core with Concentrated Air Gap in Multiphase Operation”
Sihoon Choi, Jun Imaoka, and Masayoshi Yamamoto
IEEE Transactions on Industry Applications, vol. 60, no. 2, pp. 3449-3458, March-April 2024.
[4] “Power Module with Low Common-Mode Noise and High Reliability”
Sihoon Choi, Jiyoon Choi, Thiyu Warnakulasooriya, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Access, vol. 12, pp. 90929-90939, 2024.
[5] “Improved Packaging of Power Module with Low-Permittivity Material for Low Common-Mode Noise and High Reliability”
Sihoon Choi, Jiyoon Choi, Thiyu Warnakulasooriya, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Transactions on Power Electronics, vol. 39, no. 11, pp. 14261-14270, Nov. 2024.
[6] “Novel Vertical Shunt Resistor: Integration and Optimization in Power Modules”
Sihoon Choi, Thiyu Warnakulasooriya, Jiyoon Choi, Yu Yonezawa, Jun Imaoka, and Masayoshi Yamamoto
IEEE Transactions on Power Electronics, vol. 40, no. 1, pp. 46-50, Jan. 2025.
[7] “Utilizing Silicone Gel Encapsulation in Power Semiconductor Module to Improve Manufacturability while Reducing Common-Mode Noise”
Sihoon Choi, Jiyoon Choi, Thiyu Warnakulasooriya, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Transactions on Power Electronics, vol. 41, no. 3, pp. 3308-3318, Mar. 2026.
International Conference paper
[1] “Derivation of Resonant Period for Soft Switching by Linearizing Output Capacitance of Switching Device”
Sihoon Choi, Ayato Suzuki, Jun Imaoka, and Masayoshi Yamamoto
IEEE Integration of Power conversion, Electric machine, and Control – IPEC (ECCE Asia), Himeji, Japan, May 2022.
[2] “Modeling and Design Method of Coupled Inductor Using Powder Core with Concentrated Air Gap”
Sihoon Choi, Jun Imaoka, and Masayoshi Yamamoto
IEEE Energy Conversion Congress & Expo – ECCE, Detroit, MI, USA, Oct. 2022.
[3] “Voltage-Controlled Variable Inductor to Fix the Switching Frequency in Critical Conduction Mode”
Sihoon Choi, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Energy Conversion Congress & Expo – ECCE, Nashville, TN, USA, Oct. 2023.
[4] “Packaging of SiC Power Module with a Low-Permittivity Material to Reduce Capacitive Coupling”
Sihoon Choi, Jiyoon Choi, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Components, Packaging, and Manufacturing Technology Symposium Japan – ICSJ, Kyoto, Japan, Nov. 2023.
[5] “SiC Power Module Design with a Low-Permittivity Material to Reduce Common-Mode Noise”
Sihoon Choi, Jiyoon Choi, Yu Yonezawa, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Applied Power Electronics Conference and Exposition – APEC, Long Beach, CA, USA, Feb. 2024.
[6] “Common-Mode Noise Reduction for Bridgeless Flyback PFC Rectifier with Balance Technique”
Sihoon Choi, Yikun Yin, Jong-Won Shin, Jun Imaoka, and Masayoshi Yamamoto
IEEE Applied Power Electronics Conference and Exposition – APEC, Long Beach, CA, USA, Feb. 2024.
[7] “Vertical Shunt Resistor for Double-Sided Cooling Power Modules”
Sihoon Choi, Thiyu Warnakulasooriya, Jiyoon Choi, Jun Imaoka, Masayoshi Yamamoto, Keishi Nakamura, Susumu Toyoda, and Koji Shigesawa
IEEE Applied Power Electronics Conference and Exposition – APEC, San Antonio, TX, USA, Mar. 2026.
[8] “Shunt Resistor-Integrated Power Module with Slit Design for Reduced Temperature Coefficient of Resistance”
Sihoon Choi, Thiyu Warnakulasooriya, Jiyoon Choi, Jun Imaoka, Masayoshi Yamamoto, Keishi Nakamura, and Koji Shigesawa
IEEE Integration of Power conversion, Electric machine, and Control – IPEC (ECCE Asia), Nagasaki, Japan, June 2026.
AWARD
[1] Excellent Presentation Award for Master’s Thesis Interim Presentation
Nagoya University
Sep. 2021
[2] Young Engineer Paper Presentation Award, (若手エンジニア論文発表賞)
Technical Committee on Energy Engineering in Electronics and Communications, Information and Communication Engineers
(一般社団法人 電子情報通信学会 通信ソサイエティ 電子通信エネルギー技術研究専門委員会)
Jan. 2024
[3] IEEJ Industry Applications Society Excellent Presentation Award (本部表彰 2023年電気学会産業応用部門優秀論文発表賞)
Technical Committee on Semiconductor Power Converter, IEEJ Industry Applications Society
(一般社団法人 電気学会 半導体電力変換技術委員会)
Feb. 2024
[4] 2023 IEEE PELS Japan Young Engineer Award
IEEE Power Electronics Society Japan Joint Chapter
Mar. 2024
[5] 学生研究奨励賞
一般社団法人 電子情報通信学会東海支部
Jun. 2024
[6] IEEE名古屋支部若手奨励賞
IEEE Nagoya Section
Dec. 2024
ACADEMIC SERVICES
Reviewer (Journal)
・IEEE Transactions on Power Electronics
・IEEE Journal of Emerging and Selected Topics in Power Electronics
Reviewer (Conference)
・IEEE Applied Power Electronics Conference (APEC)
Reviewed in 2024, 2025, 2026
・IEEE Energy Conversion Congress & EXPO (ECCE)
Reviewed in 2023, 2024, 2025, 2026
・IEEE Energy Conversion Congress & EXPO Europe (ECCE-Europe)
Reviewed in 2025, 2026
・IEEE Integration of Power conversion, Electric machine, and Control (IPEC)
Reviewed in 2026
Committee
・Nov. 2023 – Present
Member, Power Electronics Devices and Components Committee (PEDCC), IEEE Industry Applications Society
・Apr. 2026 – Present
Treasurer, IEEE Power Electronics Society Japan Joint Chapter (IEEE PELS JJC)