Publications

*Corresponding Author

[18] 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. [Q1 / IF 5.4, Top Circuit Journal]

[17] 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. [Q1 / IF 5.4, Top Circuit Journal]

Before POSTECH

[16] Hwa-Soo Kim, Se-Un Shin* "A High Conversion Ratio DC-DC Boost Converter with Continuous Output Current Using Dual-Current Flows" Energies, vol. 16, no. 8, pp. 3603, Apr. 2023.

[15] Sang-Han Lee, Yeon-Woo Jeong, Sang-Jae Park, Se-Un Shin* "A Rectifier-Reusing Bias-Flip Energy Harvesting Interface Circuit with Adaptively Reconfigurable SC Converter for Wind-Driven Triboelectric Nanogenerator" IEEE Transactions on Industrial Electronics (TIE), vol. 70, no. 8, pp. 8022-8031, Aug. 2023. [Q1/L1, IF 8.162]

[14] Hyuntak Jeon, Se-Un Shin*, "A Power/Hardware Efficient SiPM Readout IC Embedded in a Boost Converter for Mobile Radiation Dosimeters", IEEE Transactions on Power Electronics (TPEL), vol. 38, no. 1, pp. 657-665, Jan. 2023. [Q1/L1, IF 5.967]

[13] Gyeong-Gu Kang, Ji-Hun Lee, Se-Un Shin, Gyu-Hyeong Cho, and Hyun-Sik Kim, “A Boost-Oriented SIDO (BO-SIDO) Step-Up/Down DC-DC Converter Embedding Buck Conversion with an Energy-Balancing Capacitor,” IEEE Solid-State Circuits Letters (SSC-L). Dec. 2022. [L1]

[12] 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), Published, May 2022. 

[11] Chan-Ho Lee, Hyo-Jin Park, Joo-Mi Cho, Hyeon-Ji Choi, Su-Min Park, Esun Baik, Young-Ju Oh, Ho-Chan Ahn, Chan-Kyu Lee, Jeeyoung Shin, Se-Un Shin*, and Sung-Wan Hong, "An Input-Independent Loop Type-III Buck Converter with PSRR Improvement and EMI Suppression for Enhancing the Security of Edge Devices ", IEEE Transactions on Power Electronics (TPEL), vol. 37, no. 9, pp. 10070-10074, Mar. 2022. [Q1/L1, IF 6.153]

[10] 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. [Q1/L1, IF 6.153]

Before UNIST

[9] Woojoong Jung, Se-Un Shin*, Sung-Wan Hong, Sung-Min Yoo, Tae-Hwang Kong, Jun-Hyeok Yang, Sang-Ho Kim, Michael Choi, Jongshin Shin, and Hyung-Min Lee, "Dual-Path Three-Level Buck Converter with Loop-Free Autocalibration for Flying Capacitor Self-Balancing", IEEE Transactions on Power Electronics (TPEL), vol. 36, no. 1, pp. 51-55, Jan. 2021.

[8] Dong-Kyu Kim, Se-Un Shin*, and Hyun-Sik Kim, "A BGR-Recursive Low-Dropout Regulator Achieving High PSR in the Low- to Mid-Frequency Range", IEEE Transactions on Power Electronics (TPEL),  vol. 35, no. 12, pp. 13441-13454, Dec. 2020.

[7] Jongbeom Baek, Hyung-Min Lee, and Se-Un Shin* "Triple-Mode Switched-Inductor-Capacitor DC-DC Buck Converter with Reusable Flying Capacitor and Bang-Bang Zero-Current Detector for Wide Load Current Range", electronics,  vol. 9, no. 8, pp. 1202, July 2020.

[6] Se-Un Shin, Minseong Choi, Seungchul Jung, Hyung-Min Lee, and Gyu-Hyeong Cho “A Time-Interleaved Resonant Voltage Mode Wireless Power Receiver with Delay-based Tracking Loops for Implantable Medical Devices", IEEE Journal of Solid-State Circuits (JSSC), vol. 55, no. 5, pp. 1374-1385  May 2020.

[5] Se-Un Shin, Sung-Wan Hong, Hyung-Min Lee, and Gyu-Hyeong Cho “High Efficiency Hybrid Dual-Path Step-Up DC-DC Converter with Continuous Output Delivery Current for Low Output Ripple", IEEE Transactions on Power Electronics (TPEL), vol. 35, no. 6, pp. 6025-6038, Jun. 2020.

[4] Jieun Park, Hyung-Min Lee, Se-Un Shin, Woong Choi, and Sung-Wan Hong "A 0.46mm2 on-chip compensated type-III buck converter using an inner feedback loop with a seamless CCM/DCM transition technique", IEEE Transactions on Power Electronics (TPEL), vol. 35, no. 5, pp. 4477-4482, May 2020. 

[3] Se-Un Shin “An Adaptively Controlled 10-Output Reconfigurable Dual-Bus SIMO System with Group Allocator for Diversified Load Condition”, IEEE Access, vol. 7, pp. 45440-45450, Mar. 2019.

[2] Se-Un Shin “An Analysis of Non-Isolated DC-DC Converter Topologies with Energy Transfer Media", Energies,  vol. 12, no. 8, pp. 1468, Apr. 2019.

[1] Se-Hong Park, Yeong-Hoon Sohn, Se-Un Shin, Sung-Wan Hong, and Gyu-Hyeong Cho “An Accurate and Practical Core Loss Analysis for Compact High Step-Up Converters”, IEEE Transactions on Power Electronics (TPEL), vol. 34, no. 9, pp. 8368-8376, Jun. 2019. 

Before POSTECH

[17] 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. [Top Circuit Conferences]

[16] 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. [Top Circuit Conferences]

[15] Gyeong-Gu Kang, Ji-Hun Lee, Se-Un Shin, Gyu-Hyeong Cho, and Hyun-Sik Kim, “A 5.6W-Power 96.6%-Efficiency Boost-Oriented SIDO Step-Up/Down DC-DC Converter Embedding Buck Conversion with an Energy-Balancing Capacitor,” IEEE Symposium on VLSI Circuits (VLSIC), Accepted, Jun. 2022. [L1, One of the Top Circuit Conferences]

[14] Hyuntak Jeon, Injun Choi, Young-Han Kim, Se-Un Shin, Minkyu Je “A SiPM Readout IC Embedded in a Boost Converter for Mobile Dosimeters” IEEE Symposium on VLSI Circuits (VLSIC), pp. 1-2, Jun. 2021. [L1, One of the Top Circuit Conferences]

Before UNIST

[13] Taewook Kang, Inhee Lee, Sechang Oh, Taekwang Jang, Yejoong Kim, Hyochan Ahn, Gyouho Kim, Se-Un Shin, Seokhyeon Jeong, Dennis Sylvester, David Blaauw “A 1.7×4.1×2 mm3 Fully Integrated pH Sensor for Implantable Applications using Differential Sensing and Drift-Compensation” IEEE Symposium on VLSI Circuits (VLSIC), pp. C310-C311, Jun. 2019. 

[12] Yeunhee Huh, Se-Un Shin, Sung-Wan Hong, Young-Jin Woo, Yong-Min Ju, Sung-Won Choi, Gyu-Hyeong Cho “A Hybrid Dual-Path Step-Down Converter with 96.2% Peak Efficiency using a 250mΩ Large-DCR Inductor” IEEE Symposium on VLSI Circuits (VLSIC), pp. 225-226, Jun. 2018. 

[11] Sung-Won Choi, Yeunhee Huh, Sang-Hui Park, Kye-Seok Yoon, Jun-Suk Bang, Se-Un Shin, Yong-Min Ju, Yujin Tang, Junghyuk Yoon, Changyong Ahn, Teakseung Kim, Sung-Wan Hong, Gyu-Hyeong Cho “A Quasi-Digital Ultra-Fast Capacitor-less Low-Dropout Regulator Based on Comparator Control for x8 Current Spike of PCRAM Systems” IEEE Symposium on VLSI Circuits (VLSIC), pp. 107-108, Jun. 2018.

[10] Jongbeom Baek, Ji-Hun Lee, Se-Un Shin, and Gyu-Hyeong Cho “Switched Inductor Capacitor Buck Converter with >85% Power Efficiency in 100uA-to-300mA Loads using a Bang-Bang Zero-Current Detector” IEEE Custom Integrated Circuits Conference (CICC), pp. 1-4, Apr. 2018.    

[9] Se-Un Shin, Yeunhee Huh, Young-Jin Woo, Yong-Min Ju, Changsik Shin, Min-woo Ko, Se-hong Park, Sung-Won Choi, Young-hoon Sohn, Youngsin Jo, Hyunki Han, Hyung-Min Lee, Sung-Wan Hong, Gyu-Hyung Cho “A 95.2% Efficiency Dual-Path Step-Up Converter with Continuous Output Delivery Current and Low Voltage Ripple” IEEE International Solid-State Circuits Conference (ISSCC), pp. 430-432, Feb. 2018.    

[8] Se-Un Shin, Minseong Choi, Seok-Tae Koh, Yu-Jin Yang, Seungchul Jung, Sang Joon Kim, Young-hoon Sohn, Se-hong Park, Yong-Min Ju, Youngsin Jo, Yeunhee Huh, Sung-Won Choi, Gyu-Hyung Cho “A 13.56MHz Time-Interleaved Resonant-Voltage Mode Wireless Power Receiver with Isolated Resonator and Quasi-Resonant Boost Converter for Implantable Systems” IEEE International Solid-State Circuits Conference (ISSCC), pp. 154-156, Feb. 2018.                                             

[7] Min-woo Ko, Ki-Duk Kim, Young-Jin Woo, Se-Un Shin, Yeunhee Huh, Gyu-Hyung Cho “A 97% High-Efficiency 6-µs Fast-Recovery Time Buck-Based Step-Up/Down Converter with Embedded 1/2 and 3/2 Charge-Pumps for Li-Ion Battery Management” IEEE International Solid-State Circuits Conference (ISSCC), pp. 428-430, Feb. 2018.

[6] Seok-Tae Koh, Se-Un Shin, Yu-Jin Yang, Minseong Choi, Seungchul Jung, Gyu-Hyung Cho “A 5mW Batteryless Start-up Boost Charger for Wireless Power Transfer” IEEE International Symposium of Circuits and Systems (ISCAS), pp. 1-4, May 2017.  

[5] Yeunhee Huh, Sung-Wan Hong, Sang-Hui Park, Jun-Suk Bang, Changbyung Park, Sungsoo Park, Hui-Dong Gwon, Se-Un Shin, Hongsuk Shin, Sung-Won Choi, Yong-Min Ju, Ji-Hun Lee, Gyu-Hyeong Cho “A 10.1” 56-Channel, 183 uW/electrode, 0.73 mm2/sensor High SNR 3D Hover Sensor Based on Enhanced Signal Refining and Fine Error Calibrating Techniques” IEEE Symposium on VLSI Circuits (VLSIC), pp. C308-C309, Jun. 2017.  

[4] Yong-Min Ju, Se-Un Shin, Yeunhee Huh, Sang-Hui Park, Jun-Suk Bang, Ki-Duk Kim, Sung-Won choi, Ji-Hun Lee, Gyu-Hyeong Cho “A Hybrid Inductor-Based Flying Capacitor-Assisted Step-Up/Step-Down DC-DC Converter with 96.56% Efficiency”  IEEE International Solid-State Circuits Conference (ISSCC), pp. 184-185, Feb. 2017.

[3] Se-Un Shin, Min-Yong Jung, Ki-Duk Kim, Sang-Hui Park, Yeunhee Huh, Changsik Shin, Se-hong Park, Jun-Suk Bang, Jong-Beom Baek, Sung-Won Choi, Yong-Min Ju, Gyu-Hyeong Cho “A Reconfigurable SIMO System with 10-Output Dual-Bus DC-DC Converter using the Load Balancing Function in Group Allocator for Diversified Load Condition” IEEE Symposium on VLSI Circuits (VLSIC), pp. 1-2,  Jun. 2016.

[2]  Min-Yong Jung, Se-Un Shin, Gyu-Hyeong Cho “Issues of Single-Inductor Multiple-Output DC-DC converters” International SoC Design Conference (ISOCC) , pp. 115-116, Nov. 2015

[1] Min-yong Jung, Sang-hui Park, Jun-suk Bang, Dong-chul Park, Se-Un Shin, Gyu-Hyeong Cho “An Error-Based Controlled Single-Inductor 10-Output DC-DC Buck Converter with High Efficiency at Light Load Using Adaptive Pulse Modulation”  IEEE International Solid-State Circuits Conference (ISSCC), pp. 222-223, Feb. 2015 

[3] 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.    

[2] 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.      

[1] Se-Un Shin, Sang-hui Park, Gyu-Hyeong Cho “The Dickson Charge Pump for Tx driver with Vth Effect Reduction Technique and Adaptive Gain Control” The 23rd Korean Conference on semiconductors (KCS) (한국반도체학술대회), Feb. 2015.

[14] 김화수, 신세운, "디지털 LDO 레귤레이터 및 디지털 LDO 레귤레이터 동작 방법", 출원번호 10-2024-0075655, 출원일 2024.06.11.

[13] 김종훈, 신세운, "무선 충전 장치 및 방법 ", 출원번호 10-2024-0031441, 출원일 2024.03.05.

[12] 정연우, 신세운, "플립 동작을 다수의 단계로 균등 분할하여 수행하는 압전 에너지 하베스팅 회로 및 그를 포함하는 자체 전원 시스템 ", 출원번호 10-2023-0021416, 출원일 2023.02.17.

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

[10] H. -M. Lee, W. Jung, S. -U. Shin, S. Yoo, T. Kong, J. Yang, S. Kim, "Power switching circuit, a DC-DC converter including the same and a voltage conversion method", European patent, 20 157 701.2 filed on Feb. 17, 2020.

[9] H. -M. Lee, W. Jung, S. -U. Shin, S. Yoo, T. Kong, J. Yang, S. Kim, "Power switching circuit, a DC-DC converter including the same and a voltage conversion method", US patent, US11196344 granted on Dec. 7, 2021.

[8] G. H. Cho, Y. H. Huh, S. -U. Shin, S. W. Choi, Y. M. Ju, S. J. Lim, "Multi-path converter and control method therefor", US patent, US16591145 filed on Oct. 2, 2019.

[7] 이형민, 정우중, 신세운, 유성민, 공태황, 양준혁, 김상호, "파워 스위칭 회로, 이를 포함하는 DC-DC 컨버터 및 전압 전환 방법", 출원번호 10-2019-0068840, 출원일 2019.06.11. 

[6] M. Jung, G.-G Kim, G.-H Cho, H. Kim, H. Bang, S. -U. Shin, C. Chae, "Electronic circuit performing buck-boost conversion using single inductive element", US 10615696 granted on Apr. 7. 2020. 

[5]  Se-Un Shin , Gyu-Hyeong Cho “Wireless Power Receiving Apparatus and Method” US 10965161 granted on Mar. 30. 2021

[4]  Se-Un Shin , Gyu-Hyeong Cho “Converter having multi-path and control method thereof” 1020515700000 (KR) granted on Nov. 27. 2019

[3]  Se-Un Shin, Gyu-Hyeong Cho “Boost Converter having dual-path and control method thereof” 10-2017-0042876 (KR) 

[2]  Se-Un Shin, Gyu-Hyeong Cho “Boost DC to DC Converter with High Voltage Conversion Ratio for LED Driver” 1019767890000 (KR) granted on May 2. 2019

[1]  Se-Un Shin, Gyu-Hyeong Cho “Buck Converter having dual-path and control method thereof” 10-2017-0083619 (KR)

[4] Seung-Ju Lee “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” 2023 The 29th SAMSUNG Humantech Paper Award (Participation Prize) 

[3] IEEE-SSCS Predoctoral Achievement Award 2018-2019 

•  Awarded based on academic achievements in area of solid-state circuits 

•   ISSCC presentations (1st author) in 2018 (two papers)

[2] Se-Un Shin “A 13.56MHz Time-Interleaved Resonant Voltage-Mode Wireless Power Receiver with Isolated Resonator and Quasi-Resonant Boost Converter for Implantable Systems” 2018 The 24rd SAMSUNG Humantech Paper Award (Silver Prize)

[1] Se-Un Shin “A SIMO System with 10-Output Dual-Bus DC-DC Converter using Group Allocator” 2016 The 22nd SAMSUNG Humantech Paper Award (Bronze Prize)