Instantaneous Power Consuming Level Shifter for Improving Power Conversion Efficiency of Buck Converter. - Hyunggun Ma; Gyeongho Namgoong; Eunho Choi 001; Franklin Bien (IEEE Trans. Circuits Syst. II Express Briefs, 2019)

A 32-dB SNR Readout IC With 20-Vpp Tx Using On-Chip DM-TISM in HV BCD Process for Mutual-Capacitive Fingerprint Sensor. - Eunho Choi 001; Seong-Mun Kim; Kyoungmin Park; Sanghyun Heo; Hyunggun Ma; Gyeongho Namgoong; Haksun Kim; Franklin Bien (IEEE Trans. Circuits Syst. II Express Briefs, 2020)

A 6.78 MHz, 95.0% Peak Efficiency Monolithic Two-Dimensional Calibrated Active Rectifier for Wirelessly Powered Implantable Biomedical Devices. - Gyeongho Namgoong; Eunho Choi 001; Woojin Park; Bonyoung Lee; Hyunjun Park; Hyunggun Ma; Franklin Bien (IEEE Trans. Biomed. Circuits Syst., 2021)

3-12-V Wide Input Range Adaptive Delay Compensated Active Rectifier for 6.78-MHz Loosely Coupled Wireless Power Transfer System. - Gyeongho Namgoong; Eunho Choi 001; Woojin Park; Bonyoung Lee; Hyunjun Park; Hyunggun Ma; Franklin Bien (IEEE Trans. Circuits Syst. I Regul. Pap., 2021)

-11 to 7 dBm Power Range, Triple Band RF Energy Harvesting System With 99.9% Peak Tracking Efficiency and Improved PCE. - Eunho Choi 001; Gyeongho Namgoong; Woojin Park; Suhwan Kim 003; Jiwon Kim; Bonyoung Lee; Franklin Bien (IEEE Trans. Circuits Syst. I Regul. Pap., 2022)

A 1.4mW to 119mW, Wide Output Power Range Energy Harvesting System With 2-D Fast MPPT Based on HC for 1k to 50k Illuminated Solar Cell. - Eunho Choi 001; Gyeongho Namgoong; Woojin Park; Jiwon Kim; Suhwan Kim 003; Bonyoung Lee; Franklin Bien (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

A Real-Time Calibrated Adaptive-ZVS Class-D Power Amplifier for 6.78 MHz Wireless Power Transfer System. - Gyeongho Namgoong; Hyunjun Park; Franklin Bien (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

A 94% Peak Efficiency Dual Mode Buck Converter With Fully Integrated On-Time-Based Mode Control for Implantable Medical Devices. - Woojin Park; Gyeongho Namgoong; Eunho Choi 001; Bonyoung Lee; Hyunjun Park; Hyunggun Ma; Franklin Bien (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

A 13.56 MHz Wireless Power Transfer System With Fully Integrated PLL-Based Frequency-Regulated Reconfigurable Duty Control for Implantable Medical Devices. - Gyeongho Namgoong; Woojin Park; Franklin Bien (IEEE Trans. Biomed. Circuits Syst., 2022)

An On-/Off-Time Sensing-Based Load-Adaptive Mode Control of Triple Mode Buck Converter for Implantable Medical Devices. - Woojin Park; Gyeongho Namgoong; Eun-Ho Choi 001; Franklin Bien (IEEE Trans. Biomed. Circuits Syst., 2023)

9.8 A 50W 98%-Efficiency High-Power Wireless-Charging System with an Acoustic Noise-Reduced Ask Modulation Technique and Internal Hybrid Voltage-/Current-Mode ASK Demodulation. - Seongjin Oh; Hansol Kim; Hyunsu Kim; Gyeongho Namgoong; Woojin Park; Sangbeom Heo; Jaekyu Kim; Sungwoo Moon; Hyoung-Seok Oh; Hwayeal Yu (ISSCC, 2025)