TY - GEN
T1 - Single-stage switched-resonator converter topology with wide conversion ratio for volume-sensitive applications
AU - Cervera, Alon
AU - Ben-Yaakov, Shmuel Sam
AU - Peretz, Mor Mordechai
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/17
Y1 - 2017/5/17
N2 - In this study, a switched-resonator converter with high efficiency over a wide conversion ratio range is introduced. Inspired by the gyrator resonant switched-capacitor concept, the new topology provides high efficiency over wide and continuous range of conversion ratios using a single resonator. This is enabled by new modes of operation (switching sequences) developed and analyzed in this study, that modifies the charge-balance of the flying capacitor. By that, the efficiency characteristics of the converter can be shaped to peak at various conversion ratios. A generalized methodology is presented to describe resonator-type converters with multiple operation-modes as two-ports, which is then used to analyze three showcase operational modes of the presented topology. Experimental results of the three modes validate the developed theoretical model, and demonstrate the superiority of the concept in terms of efficiency (over 10%) and current-sourcing capabilities (over 80%) using a compact 5W prototype.
AB - In this study, a switched-resonator converter with high efficiency over a wide conversion ratio range is introduced. Inspired by the gyrator resonant switched-capacitor concept, the new topology provides high efficiency over wide and continuous range of conversion ratios using a single resonator. This is enabled by new modes of operation (switching sequences) developed and analyzed in this study, that modifies the charge-balance of the flying capacitor. By that, the efficiency characteristics of the converter can be shaped to peak at various conversion ratios. A generalized methodology is presented to describe resonator-type converters with multiple operation-modes as two-ports, which is then used to analyze three showcase operational modes of the presented topology. Experimental results of the three modes validate the developed theoretical model, and demonstrate the superiority of the concept in terms of efficiency (over 10%) and current-sourcing capabilities (over 80%) using a compact 5W prototype.
KW - Efficiency
KW - Gyrator
KW - Switch-mode converters
KW - Switched-capacitor converter
KW - Switched-resonator converters
UR - https://www.scopus.com/pages/publications/85020058593
U2 - 10.1109/APEC.2017.7930929
DO - 10.1109/APEC.2017.7930929
M3 - Conference contribution
AN - SCOPUS:85020058593
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1706
EP - 1712
BT - 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PB - Institute of Electrical and Electronics Engineers
T2 - 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Y2 - 26 March 2017 through 30 March 2017
ER -