A Reconfigurable Series-Parallel Charger for Dual-Battery Applications with 89W 97.7% Efficiency in Direct Charging Mode. - Sung-Woo Lee; Taejin Jeong; Yonghwan Cho; Jeongdu Yoo; Sungkyu Cho; Minkyu Kwon; Daewoong Cho; Sang Hee Kang; Jung-Wook Heo; Hyoung-Seok Oh; Sung-Ung Kwak (ISSCC, 2022)

A Dual-Input Bidirectional 3-Level Battery Charger with Coarse-Fine VCF Balancing and Wide VCR for Foldable Mobile Applications. - Woojin Hong; Hyebong Ko; Jinwoo So; Woonhyung Heo; Yonghwan Cho; Jeongdu Yoo; Ho-Sung Son; Youngwoo Chung; Dong-Joon Kim; Youngwoo Park; Byeonghyeon Jin; Sungkyu Cho; et al. (ISSCC, 2025)