Ji-Hun Lee

14 papers Journal 4Unranked 10
YearRankTypeTitle / Venue / Authors
2025 J jnl
Self-supervised risk factor model using dual Recurrent State Space Models.
Knowl. Based Syst.
Ji-Hun Lee, Seungjun Oh, Jongchan Park, Da-Hea Kim, Yusung Kim
2024 — conf
A 5.8W, 0.00086% THD+N, 118dB PSRR Class-D Audio Amplifier with Passive Output Common-Mode Compensation Technique for Wide Output Power Range.
VLSI Technology and Circuits
Inhwan Cho, Moo-Yeol Choi, Jaehyeok Byun, Ji-Hun Lee, Myungjin Lee, Dongsu Kim, Jongwoo Lee
2022 — conf
A 5.6W-Power 96.6%-Efficiency Boost-Oriented SIDO Step-Up/Down DC-DC Converter Embedding Buck Conversion with an Energy-Balancing Capacitor.
VLSI Technology and Circuits
Gyeong-Gu Kang, Ji-Hun Lee, Se-Un Shin, Gyu-Hyeong Cho, Hyun-Sik Kim
2021 J jnl
A 5-V Dynamic Class-C Paralleled Single-Stage Amplifier With Near-Zero Dead-Zone Control and Current-Redistributive Rail-to-Rail Gm-Boosting Technique.
IEEE J. Solid State Circuits
Seok-Tae Koh, Ji-Hun Lee, Gyeong-Gu Kang, Hyun-Ki Han, Hyun-Sik Kim
2021 J jnl
A 50.7-dB-DR Finger-Resistance Extracting Multi-Touch Sensor IC for Soft Classification of Fingers Contacted on 6.7-in Capacitive Touch Screen Panel.
IEEE J. Solid State Circuits
Tae-Gyun Song, Dong-Kyu Kim, Jeong-Hyun Cho, Ji-Hun Lee, Hyun-Sik Kim
2021 — conf
A 5V Dynamic Class-C Paralleled Single-Stage Amplifier with Near-Zero Dead-Zone Control and Current-Redistributive Rail-to-Rail Gm-Boosting Technique.
ISSCC
Seok-Tae Koh, Ji-Hun Lee, Gyeong-Gu Kang, Hyun-Ki Han, Hyun-Sik Kim
2021 — conf
An 8Ω 5.5W, 0.006% THD+N, 2×VBAT-Swing Switched-Mode Audio Amplifier with Fully-Differential Linear Buck-Boost Topology Achieving Total Efficiency of 87%.
VLSI Circuits
Ji-Hun Lee, Hyun-Sik Kim
2020 — conf
11.8 A 96.8%-Efficiency Continuous Input/Output-Current Step-Up/Down Converter Powering Disposable IoTs with Reconfigurable Multi-Cell-Balanced Alkaline Batteries.
ISSCC
Min-Woo Ko, Gyeong-Gu Kang, Ki-Duk Kim, Ji-Hun Lee, Seok-Tae Koh, Tae-Hwang Kong, Sang-Ho Kim, Sungyong Lee, Michael Choi, Jongshin Shin, Gyu-Hyeong Cho, Hyunsik Kim
2020 — conf
A 50.7dB-DR Finger-Resistance Extractable Multi-Touch Sensor IC Achieving Finger-Classification Accuracy of 97.7% on 6.7-Inch Capacitive Touch Screen Panel.
VLSI Circuits
Tae-Gyun Song, Dong-Kyu Kim, Jeong-Hyun Cho, Ji-Hun Lee, Hyun-Sik Kim
2020 — conf
An 8Ω, 1.4W, 0.0024% THD+N Class-D Audio Amplifier with Bridge-Tied Load Half-Side Switching Mode Achieving Low Standby Quiescent Current of 660μA.
VLSI Circuits
Ji-Hun Lee, Gyeong-Gu Kang, Min-Woo Ko, Gyu-Hyeong Cho, Hyun-Sik Kim
2018 — conf
Switched inductor capacitor buck converter with >85% power efficiency in 100uA-to-300mA loads using a bang-bang zero-current detector.
CICC
Jong-Beom Baek, Ji-Hun Lee, Se-Un Shin, Min-Yong Jung, Gyu-Hyeong Cho
2017 — conf
10.4 A hybrid inductor-based flying-capacitor-assisted step-up/step-down DC-DC converter with 96.56% efficiency.
ISSCC
Yong-Min Ju, Se-Un Shin, Yeunhee Huh, Sang-Hui Park, Jun-Suk Bang, Kiduk Kim, Sung-Won Choi, Ji-Hun Lee, Gyu-Hyeong Cho
2017 — conf
5.2 An 8Ω 10W 91%-power-efficiency 0.0023%-THD+N multi-level Class-D audio amplifier with folded PWM.
ISSCC
Ji-Hun Lee, Jun-Suk Bang, Kiduk Kim, Hui-Dong Gwon, Sang-Hui Park, Yeunhee Huh, Kye-Seok Yoon, Jong-Beom Baek, Yong-Min Ju, Gibbeum Lee, Homin Park, Hyeon-Min Bae, Gyu-Hyeong Cho
2005 J jnl
Exact dynamic stiffness matrix of non-symmetric thin-walled beams on elastic foundation using power series method.
Adv. Eng. Softw.
Nam-Il Kim, Ji-Hun Lee, Moon-Young Kim