2025학년도 반도체융합공학과 신임교원

조건희 교수는 연세대학교 전기전자공학부에서 학사 및 석사학위를 취득한 후, 페어차일드 반도체에서 전력관리 집적회로 설계팀에서 근무하였다. 이후, 미국 텍사스 오스틴 대학교 (University of Texas at Austin) 전기컴퓨터공학부에서 박사학위를 취득하였으며, 박사과정 중에는 Texas Instruments (Dallas, USA)에서 Low power RF 회로 설계팀 인턴 연구원으로 근무하였다. 박사 졸업 이후에는 Qualcomm (Santa Clara, USA)에서 고속 충전용 전력변환 집적회로 설계 팀에서 근무하였다. 2020년부터 경북대학교 전자공학부에서 조교수 및 부교수로 재직하였으며, 2025년 3월 성균관대학교 반도체융합공학과 부교수로 부임하였다.

연구분야는 아날로그 집적회로 (Analog integrated circuits) 및 전력관리 집적회로 (Power management IC) 설계이며, 특히 DC-DC converter, Low-dropout voltage regulator (LDO), high-voltage gate driver, 등에 대한 설계를 중점적으로 연구하고 있다.

연구분야

▶ Power management IC, Analog integrated circuits, High-voltage gate driver

국제학술지 논문

▶ S. Kim, T. Lee, Kunhee Cho*, and J. Han, “A Flying-Capacitor-Assisted Single-Mode Buck-Boost Converter for Battery-Powered Applications,” IEEE T-VLSI (2025)

▶ Geuntae Park, Seongil Yeo, Chanjung Park, and Kunhee Cho*, "A Ripple-Based Real-Time Built-In Resistance Compensation for Switching Battery Charger Achieving Fast Charging," IEEE T-CAS II (2024)

▶ Yuli Han, Jaemin Kim, Gunmo Koo, Jaejin Kim, Jusung Kim, Joo-Young Kim, and Kunhee Cho*, "A DVS-Enabled Distributed Digital LDO Providing Rapid Uniform Power Grid and Ripple Reduction Achieving 20.1-ps FOM in 28nm CMOS," IEEE T-CAS I (2024)

▶ Gunmo Koo, Jaejin Kim, Seongmin Lee, Jae Hoon Shim, and Kunhee Cho*, "An Ultra-Wide Load-Range Fast-Transient Output Capacitor-Less Digital LDO with Adaptive Gate Modulation and Droop Detection," IEEE SSC-L (2024)

▶ Jaejin Kim, Gunmo Koo, Seongmin Lee, Jae Hoon Shim, and Kunhee Cho*, "An Output-Capacitor-Free NMOS Digital LDO using Gate Driving Strength Modulation and Droop Detector," IEEE T-CAS I (2023)

▶ W. Jin, and Kunhee Cho*, "A Supply Voltage Noise Immunity Enhancement Design for High-Voltage Gate Driver IC based on Bootstrap Circuit," IEEE T-CAS II (2021)

▶ S. Lee, K. Jung, H. Kim, H. Nguyen, T. Nguyen, L. Nguyen, C. Huynh, Kunhee Cho, and Jusung Kim, “Frequency-Locked RF Power Oscillator with 43-dBm Output Power and 58% Efficiency,” IEEE T-VLSI (2021)

▶ J. Kim, Y. Kim, S. Lee, Y. Park, D. Lee, Kunhee Cho, S. Oh, and C. Ahn, "A 20W Wide Bandwidth GaN HEMT Power Amplifier for VHF/UHF Applications," IEEE T-IE (2020)

▶ K. Jung, Kunhee Cho, S. Lee, J. Kim, "A Temperature Compensated RF LC Clock Generator With ±50-ppm Frequency Accuracy From -40 °C to 80 °C," IEEE T-MTT (2019)

▶ Kunhee Cho*, Ranjit Gharpurey, “An Efficient Class-G Stage for Switching RF Power Amplifier Applications,” IEEE T-CAS II (2019)

▶ Kunhee Cho*, Ranjit Gharpurey, “An Efficient Buck/Buck-Boost Reconfigurable LED Driver Employing SIN2 Reference,” IEEE JSSC (2017)

▶ Kunhee Cho*, Ranjit Gharpurey, “A 40-170 MHz PLL-based PWM Driver using 2-/3-/5-level Class-D PA in 130 nm CMOS,” IEEE JSSC (2016)

▶ Kunhee Cho*, Ranjit Gharpurey, “A Digitally Intensive Transmitter/PA using RF-PWM with Carrier Switching in 130 nm CMOS,” IEEE JSSC (2016)

▶ Kunhee Cho*, Dongmyung Lee, Jeonghwan Lee, and Gunhee Han, “Sub-1V CMOS Image Sensor Using Time-Based Readout Circuit,” IEEE T-ED (2010)

▶ Dongmyung Lee, Kunhee Cho, Dongsoo Kim and Gunhee Han, “Low Noise In-Pixel Comparing Active Pixel Sensor using Column-Level Single-Slope ADC,” IEEE T-ED (2008)

국제 컨퍼런스

▶ Chanjung Park, Seongil Yeo, Jeu Lee, Geuntae Park, Seungjin Baek, Seunghoon Lee, Kunhee Cho*, "A 29.5W Switched-Capacitor Based Dual-Output Hybrid Secondary Charger Providing Simultaneous Two-Cell Battery Charging and System Supply Voltage with Input Current Limiting Feature," IEEE ASSCC (2024)

▶ D. Kim, J.-Y. Kim, H. Cho, S. Yoo, S. Lee, S. Yune, H. Jeong, K. Park, K.-S. Lee, J. Lee, C. Han, G. Koo, Y. Han, J. Kim, J. Kim, K. Lee, J.-H. Chae, Kunhee Cho, J. Kim, "DPIM: A 19.36TOPS/W 2T1C eDRAM transformer-in-memory chip with sparsity-aware quantization and heterogeneous dense-sparse core," IEEE ESSERC (2024)

▶ Seongil Yeo, Uyong Hyeon, Mingyeong Kim, Jusung Kim, Kunhee Cho*, "A 19.8W/29.6W Hybrid Step-Up/Down DC-DC Converter with 97.2% Peak Efficiency for 1-Cell/2-Cell Battery Charger Applications," IEEE VLSI (2023)

▶ D. Min, J. Lee, Kunhee Cho and J. Shim. "An Output-Capacitor-Free Adaptive-Frequency Digital LDO with a 420-mA Load Current and a Fast Settling Time," IEEE ISCAS (2023)

▶ Wei-gi Ho, Vineet Singh, Kunhee Cho, Rangakrishnan Srinivasan, Ranjit Gharpurey, “A Full-Duplex Transceiver Front-end Employing Inverse Class-D Power Amplifiers,” IEEE DCAS (2016)

▶ Kunhee Cho* and Ranjit Gharpurey, “A 25.6 dBm Wireless Transmitter using RF-PWM with Carrier Switching in 130-nm CMOS,” IEEE RFIC (2015)

▶ Y. Chung, D. Park, Kunhee Cho, J. Chung, G. Lee and D. Cho, “An Automatic Channel Selectable Smart LED Backlight Driver IC for Various Scaled-Size LCDs,” SID (2012)

▶ J. Hwang, Kunhee Cho*, D. Kim, M. Jung, G. Cho, S. Yang, “A Simple LED Lamp Driver IC Using Intelligent Power Factor Correction,” ISSCC (2011)

▶ Kunhee Cho, Dongmyung Lee, Jeonghwan Lee and Gunhee Han, “A 0.75V CMOS Image Sensor Using Time-Based Readout Circuit,” IEEE VLSI (2009)