Kyung-Sik Choi, Jinho Ko, and Sang-Gug Lee. "A Single-Supply Single-Core Inverse Class-D Digital Power Amplifier with
Enhanced Power Back-Off Efficiency Adopting Output Power Scaling
Technique" 2021 Symposium on VLSI Circuits, 2021.
Young-Seok Noh, Jeong-Il Seo, Won-Jong Choi, Ji-Hwan Kim, Hoang Van Phuoc, Hyun-Sik Kim, and Sang-Gug Lee. "A Reconfigurable DC-DC Converter for Maximum TEG Energy Harvesting in a Battery-Powered Wireless Sensor Node." IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2021.