A solar energy harvesting system for a portable compact LED lamp. - Ji Hoon Hyun; Dong Sam Ha; Daniel Daeick Han; Chong-Min Kyung (IECON, 2015)

Automotive lead-acid battery state-of-health monitoring system. - Ross Kerley; Ji Hoon Hyun; Dong Sam Ha (IECON, 2015)

Power management circuit for kinetic energy harvesting from freight railcars. - Thomas O'Connor; Ji Hoon Hyun; Dong Sam Ha (MWSCAS, 2017)

Energy Harvesting Circuit for Road Speed Bumps Using a Piezoelectric Cantilever. - Ji Hoon Hyun; Nan Chen 005; Dong Sam Ha (IECON, 2018)

A Multi-Source Energy Harvesting System to Power Microcontrollers for Cryptography. - Jiayu Li; Ji Hoon Hyun; Dong Sam Ha (IECON, 2018)

Vibration and Thermal Energy Harvesting System for Automobiles with Impedance Matching and Wake-up. - Ji Hoon Hyun; Long Huang; Dong Sam Ha (ISCAS, 2018)