YEAR 2024

• Nguyen-Anh Nguyen, and Sung-Jin Choi. "Fast and Accurate Pre-conditioning Method for Li-on Battery Cell-balancing Tests." 전력전자학회 학술대회 논문집 (2024): 971-972. READ MORE

YEAR 2023

• Jeong-Soo Park, Chanh-Tin Truong, and Sung-Jin Choi. "2 병렬 DAB 컨버터의 최적 인터리빙 위상각 분석." 전력전자학회 학술대회 논문집 (2023): 556-557. READ MORE

• Jeong-Soo Park, Chanh-Tin Truong, Tae-Yeong Im, and Sung-Jin Choi. "DAB 컨버터의 경부하 효율 개선을 위한 새로운 간헐 스위칭 기법 연구." 전력전자학회 학술대회 논문집 (2023): 160-161. READ MORE

• Tofopefun Nifise Olayiwola, and Sung-Jin Choi. "Long-term Aging Pattern Characterization for Photovoltaic Panels using the Superellipse Model." 전력전자학회 학술대회 논문집 (2023): 112-113. READ MORE

• Ngoc-Thao Pham, and Sung-Jin Choi. "Estimating Passive Balancing Time for Lithium Iron Phosphate (LiFePO4) Battery Using Nonlinear Capacitor-Based Modeling." 전력전자학회 학술대회 논문집 (2023): 110-111. READ MORE

YEAR 2022

• Tofopefun Nifise Olayiwola and Sung-Jin Choi, “Fast I-V curve approximation technique for photovoltaic panels using superellipse,” in KIPE Power Electronics Conference, pp. 408-409, 2022. READ MORE

• Tae-Yeong Im, Thi Ngoc-Thao Pham, Nguyen-Anh Nguyen, Sung-Jin Choi, "Design Optimization of Planar Transformer for Bi-directional Forward Converter in Active Cell Balancing Applications," Power Electronics Conference, 80-82, July 2022 READ MORE

• Tae-Yeong Im, Phuong-Ha La, Ki-Wook Lee and Sung-Jin Choi, "Multi-Objective Design Optimization for PCB Transformer in Bi-directional Converters." 전력전자학회 학술대회 논문집 (2022): 133-134. READ MORE

YEAR 2021

• Seung-Ha Ryu, Chanh-Tin Truong, and Sung-Jin Choi. "Novel Intuitive Design Scheme for Asymmetric Inductive Power Transfer Coils using FOM-rd Plane Approach." KIPE Annual Conference (2021): 8. READ MORE

• Seung-Ha Ryu and Sung-Jin Choi, "Coil Design Scheme using Single-Turn Field Simulation for Efficiency Optimization of Inductive Power Transfer System," KIPE annual conference, 2021.11.26. READ MORE

• Yun-A Kang, Ji-Hyeon Park, Ngoc-Thao Pham, and Sung-Jin Choi. "Online SOC Estimation Combining EKF and LSTM Algorithm for Reduced Initial SOC Dependency." KIPE Annual Conference (2021): 123-124. READ MORE

• Phuong-Ha La and Sung-Jin Choi, "Average Modeling of the Switched-Passive-Network Equalizer for Effective Large-scale Battery Simulation," KIPE Annual Conference, 2021 READ MORE

• Nguyen-Anh Nguyen, Phuong-Ha La, and Sung-Jin Choi. "High-Speed Battery SOC Adjustment Algorithm utilizing Bi-directional Cell Balancers in Coordination with Pack Charger." KIPE Annual Conference (2021): 119-120. READ MORE

• Ngoc-Thao Pham, Phuong-Ha La, and Sung-Jin Choi. "Comparison of Different Current Sampling Strategies for an Online Battery Model Identification using Switched-Capacitor Equalizer." KIPE Annual Conference (2021): 117-118. READ MORE

YEAR 2020

• Nguyen-Anh Nguyen and Sung-Jin Choi. "Low-cost AC-direct Battery Charger with Balancing Feature." KIPE Annual Conference (2020): 246-247. READ MORE

• Phuong-Ha La, and Sung-Jin Choi. "Online DCIR Estimation for Series-connected Battery Cells using Matrix-Switched Capacitor Converter." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2020. READ MORE

• Tan-Quoc Duong, and Sung-Jin Choi. "Improved Model-based Single Phase Shift Control of Dual Active Bridge Converter for Pulse Power Loads." KIPE Annual Conference (2020): 170-171. READ MORE

YEAR 2019

• Tan-Quoc Duong, Phuong-Ha La, and Sung-Jin Choi. "SOC-based Sequencing Equalizer for Parallel-connected Battery Configuration using ANFIS Algorithm." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2019. READ MORE

• Thusitha Randima Wellawatta, and Sung-Jin Choi. "Small-Signal Stability Analysis of Solar Array Hardware Simulators." KIPE Annual Conference, 2019. READ MORE

• Chanh Tin Truong, and Sung-Jin Choi. "Design Considerations of Asymmetric Half-Bridge for Capacitive Wireless Power Transmission." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2019. READ MORE

• Phuong-Ha La, and Sung-Jin Choi. "Optimal Design for Dynamic Resistance Equalization Technique to Minimize Power Loss and Equalization Error." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2019. READ MORE

YEAR 2018

• Chae-Ho Jeong, and Sung-Jin Choi. "An Optimal Design of Series-Series Resonant Energy Link in Wireless Power Transfer," KIPE Annual Conference, 2018. READ MORE

• Hwi-yeol Im, Chae-Ho Jeong, Sung-Jin Choi, "A Study on Downsized Experiment Methodology Using Scale Conversion for Inductive Power Transfer System," KIPE Annual Conference, 2018. READ MORE

• Thusitha Randima Wellawatta, and Sung-Jin Choi. "Reference Point Projection Method for Improved Dynamics of Solar Array Hardware Emulation." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2018. READ MORE

• Phuong-Ha La, and Sung-Jin Choi. "Battery Equalization Method for Parallel-connected Cells Using Dynamic Resistance Technique." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2018. READ MORE

YEAR 2017

• Thusitha Randima Wellawatta, Young-Tae Seo, and Sung-Jin Choi. "A Novel Partial Shading Detection Algorithm Utilizing Power Level Monitoring." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2017. READ MORE

• Hee-Su Choi, Chae-Ho Jeong, and Sung-Jin Choi, "A Study on the Structure of Asymmetric Half-Bridge PWM Converter for Capacitive-coupled Wireless Power Transmission," KIPE Annual Conference, 2017. READ MORE

• Young-Tae Seo, Thusitha Wellawatta, and Sung-Jin Choi. "PV Model-based Solar Array Simulator using Hybrid Control Method." KIPE Annual Conference, 2017. READ MORE

• Phuong-Ha La, Hwi-Yeol Im, and Sung-Jin Choi. "Development of Low Cost, High-Performance Miniaturized Lithium-ion Battery Tester Using Raspberry Pi Zero." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2017. READ MORE

YEAR 2016

• Dong-Hyun Kim, Sung-Jin Choi, Hong-Hee Lee, Paul Jang, "A Feasibility Study on CCM Totem-pole Boost Bridgeless Power Factor Correction Converters using SiC MOSFET," KIPE Annual Conference, 2016. READ MORE

• Chae-Ho Jeong, Hee-Su Choi, Sung-Jin Choi, "A Receiver Detection Algorithm Using Step Response for Capacitive Coupling Wireless Power Systems," KIPE Annual Conference, 2016. READ MORE

• Thusitha Wellawatta and Sung-Jin Choi, "An Improved Incremental Conductance MPPT Method for the Photovoltaic Generation," KIPE Annual Conference, 2016. READ MORE

• Young-Tae Seo, Jun-Young Park, Sung-Jin Choi, "PV Model-based Solar Array Simulator with Conjugate Gradient Method," KIPE Annual Conference, 2016. READ MORE

• Hee-Su Choi, and Sung-Jin Choi. "Optimal Design of Matching Network for Capacitive-coupled Wireless Power Transfer System." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2016. READ MORE

YEAR 2015

• Hee-Su Choi, Jun-Young Park, Sung-Jin Choi, "A Simple Parameter Extraction Method for Magnetic Transformers using PSIM," KIPE Annual Conference 2015. READ MORE

• Jun-Young Park, Sung-Jin Choi, "An Improved Power Point Tracking Algorithm Using Optimization Method," KIPE Annual Conference, 2015 READ MORE

YEAR 2014

• Jun-Young Park, Si-Ho Lee, Jae-Young Hwang, and Sung-Jin Choi, "Analog feedback control using optical link for capacitive-coupled wireless power transmission system ," KIPE Annual Conference, 2014. READ MORE

• Jun-Young Park, Sung-Jin Choi, "Improved Parameter Extraction Algorithm for Photovoltaic Array Circuit Model." KIPE Annual Conference , 2014.7, 369-370 READ MORE

YEAR 2013

• Byungwoo Choi, and Sung-Jin Choi. "Design of capacitively-coupled contactless charging system using class-E amplifier." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2013. READ MORE

• Jun-Young Park, and Sung-Jin Choi. "Design optimization of a linear LED driver using a computational statistics." Proceedings of the KIPE Conference. The Korean Institute of Power Electronics, 2013. READ MORE

YEAR 2005

• Sangmin Lee, Myounghwan Ryu, Sung-Jin Choi, Bo H.Cho, "A New Piezoelectric Transformer Driving Topology for Universal Input AC/DC Adapter using PWM control," KIPE Annual Conference, 2005 READ MORE

YEAR 2004

• T. I. Kim, J. H. Park, S. M. Lee, Sung-Jin Choi, B. H. Cho, "Low Cost Class-E Converter for Power Conversion Operation of Piezoelectric Transformer," KIPE Annual Conference , 2004.7, 696-699 READ MORE

YEAR 2000

• J.H.Park, Sung-Jin Choi, B.H. Cho, "Low-Cost Improved 2 Stage Inverter for TFT-LCD Monitor Backlight," KIPE Annual Conference , 2000.11, 189-192 READ MORE

• J.H.Park, Sung-Jin Choi, Bo H. Cho, "Low-cost asymmetric control half-bridge inverter for LCD backlight," KIPE Annual Conference , 2000.7, 509-512 READ MORE

YEAR 1999

• In-Kyu Lee, Sung- Jin Choi, Kyu-Chan Lee, Bo. H. Cho."Modeling and Stability Analysis of Automotive HID Lamp Ballast," KIPE Annual Conference, 1999.7, 411-414 READ MORE