Title :
Improving dynamic performance and efficiency of a resonant switched-capacitor converter based on phase-shift control
Author :
Sano, Kenichiro ; Fujita, Hideaki
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
This paper presents the output voltage regulation characteristics and the dynamic performance of an RSCC using a phase-shift control. The proposed phase-shift control realizes soft switching operation even if the output voltage was changed, and it achieves a higher conversion efficiency. A theoretical analysis shows that the RSCC can reduce its inductor volume compared with a buck converter when its output voltage range is limited within 19-81% of its input voltage. Experimental results verify the operation characteristics of the proposed method and show the improved conversion efficiency more than 99%.
Keywords :
phase control; power capacitors; resonant power convertors; voltage control; output voltage regulation characteristics; phase-shift control; resonant switched-capacitor converter; soft switching operation; inductor volume; phase-shift control; switchedcapacitor converter; zero-voltage switching;
Conference_Titel :
Energy Conversion Congress and Exposition, 2009. ECCE 2009. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2893-9
Electronic_ISBN :
978-1-4244-2893-9
DOI :
10.1109/ECCE.2009.5316453
