A 90.6% Efficient, 0.333 W/mm2 Power Density Direct 48V-to-1V Dual Inductor Hybrid Converter With Delay-Line-Based V2D Controller. - Yuan Hua; Qi Lu; Shuangmu Li; Bo Zhao 003; Sijun Du (IEEE Trans. Circuits Syst. II Express Briefs, 2023)