A 10 bit piecewise linear cascade interpolation dac with loop gain ratio control. - Sungwoo Lee; Kiduk Kim; Kyusung Park; Changbyung Park; Byunghun Lee; Jinyong Jeon; Seungchul Jung; Jin Huh; Junhyeok Yang; Hyunsik Kim; Gyu-Hyeong Cho (CICC, 2010)

A novel readout IC with high noise immunity for charge-based touch screen panels. - Junhyeok Yang; Seungchul Jung; Young-Jin Woo; Jinyong Jeon; Sungwoo Lee; Changbyung Park; Hyunsik Kim; Seung-Tak Ryu; Gyu-Hyeong Cho (CICC, 2010)

Robust and efficient synchronous buck converter with near-optimal dead-time control. - Sungwoo Lee; Seungchul Jung; Jin Huh; Changbyung Park; Chun-Taek Rim; Gyu-Hyeong Cho (ISSCC, 2011)

A highly noise-immune touch controller using Filtered-Delta-Integration and a charge-interpolation technique for 10.1-inch capacitive touch-screen panels. - Junhyeok Yang; Sang-Hui Park; Jung-Min Choi; Hyunsik Kim; Changbyung Park; Seung-Tak Ryu; Gyu-Hyeong Cho (ISSCC, 2013)

High Area-Efficient DC-DC Converter With High Reliability Using Time-Mode Miller Compensation (TMMC). - Sung-Wan Hong; Tae-Hwang Kong; Sang-Hui Park; Changbyung Park; Seungchul Jung; Sungwoo Lee; Gyu-Hyeong Cho (IEEE J. Solid State Circuits, 2013)

Accurate Dead-Time Control for Synchronous Buck Converter With Fast Error Sensing Circuits. - Sungwoo Lee; Seungchul Jung; Changbyung Park; Chun-Taek Rim; Gyu-Hyeong Cho (IEEE Trans. Circuits Syst. I Regul. Pap., 2013)

Low drain voltage S/H type PWM LED current driver for BLU in mobile LCD. - Changbyung Park; Tae-Hwang Kong; Gyu-Hyeong Cho (CICC, 2014)

6.8 A pen-pressure-sensitive capacitive touch system using electrically coupled resonance pen. - Changbyung Park; Sungsoo Park; Kiduk Kim; Sang-Hui Park; Juwan Park; Yunhee Huh; Byunghoon Kang; Gyu-Hyeong Cho (ISSCC, 2015)

A Pen-Pressure-Sensitive Capacitive Touch System Using Electrically Coupled Resonance Pen. - Changbyung Park; Sungsoo Park; Kiduk Kim; Sang-Hui Park; Juwan Park; Byunghoon Kang; Yunhee Huh; Gyu-Hyeong Cho (IEEE J. Solid State Circuits, 2016)

A noise-immune stylus analog front-end using adjustable frequency modulation and linear-interpolating data reconstruction for both electrically coupled resonance and active styluses. - Kyung-Hoon Lee; Sang-Pil Nam; Jung-Ho Lee; Michael Choi; Hyungjong Ko; San-Ho Byun; Jin-chul Lee; Yong-Hoon Lee; Yeong-Cheol Rhee; Yoon-Kyung Choi; Byunghoon Kang; Changbyung Park; et al. (ISSCC, 2018)

A 10.1" 183-µW/electrode, 0.73-mm2/sensor High-SNR 3-D Hover Sensor Based on Enhanced Signal Refining and Fine Error Calibrating Techniques. - Yeunhee Huh; Sung-Wan Hong; Sang-Hui Park; Changsik Shin; Jun-Suk Bang; Changbyung Park; Sungsoo Park; Gyu-Hyeong Cho (IEEE J. Solid State Circuits, 2018)