A Pulse-Frequency-Modulated Full-Bridge DC/DC Converter With Series Boost Capacitor. - Yong-Saeng Shin; Chang-Seop Kim; Sang-Kyoo Han (IEEE Trans. Ind. Electron., 2011)

High-Efficiency and Low-Cost Tightly Regulated Dual-Output LLC Resonant Converter. - Sang-Ho Cho; Chang-Seop Kim; Sang-Kyoo Han (IEEE Trans. Ind. Electron., 2012)