• Education

  Ph.D Graduate Student Researcher                                                                                            Mar. 2024 - Present

- Pohang University of Science and Technology (POSTECH) - Electrical Engineering - PICTUS LAB. (Advisor : Se-Un Shin)

  Master's Graduate Student Researcher                                                                             Mar. 2021 - Feb. 2024

- Ulsan National Institute of Science and Technology (UNIST) - Electrical Engineering - PICTUS LAB. (Advisor : Se-Un Shin)

  Bachelor of Science Student                                                                                        Mar. 2015 - Feb. 2021

- Dankook University - Display Engineering

• Publications (International)

Conferences

Seung-Ju Lee, Yeon-Woo Jeong, Mun-Jung Cho, Jong-Hun Kim, Hwa-Soo Kim, Jun-Suk Bang, Se-Un Shin "A 95.3% 5V-to-32V Wide Range 3-Level Current Mode Boost Converter with Fully State-based Phase Selection Achieving Simultaneous High-Speed VCF Balancing and Smooth Transition" was accepted in IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2023. 

Yeon-Woo Jeong, Seung-Ju Lee, Jong-Hun Kim, Mun-Jung Cho, Hwa-Soo Kim, Se-Un Shin ''A Scalable N-Step Equal Split SSHI Piezoelectric Energy Harvesting Circuit Achieving 1170% Power Extraction Improvement and 22nA Quiescent Current with a 1μH-to-10μH Low Q Inductor" was accepted in IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2023. 

Journals

Jong-Hun Kim, Najam ul Hassan, Seung-Ju Lee, Yeon-Woo Jung, Se-Un Shin, "A Resonant Current-Mode Wireless Power Transfer for Implantable Medical Devices – An Overview", Biomedical Engineering Letters (BMEL), May 2022. 

Hyun-Su Lee, Jisan Ahn, Kyeongho Eom, Woojoong Jung, Seung-Ju Lee, Yeon-Woo Jeong, Se-Un Shin, and Hyung-Min Lee, "A Power-Efficient Resonant Current Mode Receiver with Wide Input Range over Breakdown Voltages Using Automated Maximum Efficiency Control", IEEE Transactions on Power Electronics (TPEL), vol. 37, no. 7, pp. 8738-8750, Jul. 2022. 

Seung-Ju Lee, Yeon-Woo Jeong, Se-Un Shin " A Three-Level Boost Converter with Fully State-Based Phase Selection Technique for High-Speed VCF Calibration and Smooth Mode Transition" IEEE Journal of Solid-State Circuits (JSSC), vol. 58, no. 12, pp. 3544-3554, Dec. 2023, invited paper from ISSCC. 

Yeon-Woo Jeong, Seung-Ju Lee, Se-Un Shin " A Scalable N-Step Equally Split SSHI Rectifier for Piezoelectric Energy Harvesting with Low-Q Inductor" IEEE Journal of Solid-State Circuits (JSSC), vol. 58, no. 12, pp. 3519-3529, Dec. 2023, invited paper from ISSCC. 

• Domestic Journals & Conference

Seung-Ju Lee, Se-Un Shin "A Switched Capacitor Based DC-DC Boost Converter with Adaptive Dead-time Generator for Solid-State Drives" IDEC Congress Chip Design Contest (CDC), July 2022. 

Seung-Ju Lee, Se-Un Shin "A Voltage Mode PWM DC-DC Boost Converter with Adaptive Dead-time Generator for Solid-State Drives" Journal of Integrated Circuits and Systems (JICAS), VOL 8, No.3, July 2022.  

이승주, 신세운 "Solid-State Drives 용 1:2 Switched-Capacitor 기반 DC-DC Boost Converter", 제5회 반도체공학회 종합학술대회, Dec. 2022.

이승주, 신세운 "고주파 대역 전력 증폭기의 서플라이 모듈레이터를 위한 2-x 스위치드 커패시터 기반 하이브리드 부스트 컨버터", 한국전자파학회 하계종합학술대회, Aug. 2023.

이승주, 신세운 "Three-Level Boost Converter의 고속 VCF Calibration과 Smooth Mode Transition을 위한 완전 상태 기반 컨트롤", 제6회 반도체공학회 종합학술대회, Dec. 2023.

이승주, 신세운 "USB PD 용 Bidirectional Power Conversion을 위한 Wide Conversion Ratio Symmetric Three-Level Buck-Boost Converter", 제6회 반도체공학회 종합학술대회, Dec. 2023.

• Patents

이승주, 신세운, "3-레벨 부스트 컨버터용 제어 회로", 출원번호 10-2023-0020666, 출원일 2023.02.16. 

• Awards

29th Samsung Humantech Paper Award, Participation Prized, 2023.02.20.

• Tools

Cadence Virtuoso (Spectre, Calibre, EMX, Finesim)

Powersim (PSIM)

SIMetrix/SIMPLIS

Ansys HFSS

OrCAD (PSpice, PCB Design)

LTspice

• Etc.

Military duty - Republic of Korea Air Force Segeant, Honorable Discharge, 2015.12. - 2017.12

Hobby - Weight Training