Influence of Junction-Capacitance and Dead-Time on Dual-Active-Bridge Actual Soft-Switching-Range: Analytic Analysis and Solution

• Published in: IEEE transactions on power electronics Vol. 38; no. 5; pp. 6157 - 6168
• Main Authors: Wang, Zhe, Li, Chi, Liu, Jiye, Zheng, Zedong
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Capacitance; Capacitance bridges; Dead time; dual active bridge (DAB); Electric bridges; Electric converters; Inductors; junction capacitance; Junctions; Modulation; Phase modulation; soft switching; Switches; Switching; Voltage; Zero voltage switching

Dual active bridges (DABs) may lose zero voltage switching (ZVS) operation when the junction capacitance of semiconductors cannot be fully charged or discharged within dead time. The influence above is more serious especially under light load because the switching current is small. The aim of this a...