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Performance of a High-Efficiency Switched-Capacitor-Based Resonant Converter With Phase-Shift Control

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2 Author(s)
Sano, K. ; Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan ; Fujita, H.

This paper presents 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%.

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Power Electronics, IEEE Transactions on  (Volume:26 ,  Issue: 2 )