Capacitor Based Resonant Converter with Phase Shift Control

This project proposes operating performance of a switched capacitor based resonant converter (SCRC) using a phase-shift control method. The proposed phase shift control realizes zero voltage switching operation and thus achieves a high conversion efficiency. A theoretical analysis shows that the SCRC can reduce its inductor volume compared with a conventional buck converter when the output voltage range is within 19%-81% of its input voltage. Experimental results verify the operating characteristics of the proposed method and show the improved conversion efficiency of more than 99%.