TY - JOUR
T1 - A Family of Step-Up Series-Parallel Dual Resonant Switched-Capacitor Converters with Wide Regulation Range
AU - Xie, Wenhao
AU - Li, Shouxiang
AU - Zheng, Yifei
AU - Smedley, Keyue Ma
AU - Wang, Jianze
AU - Ji, Yanchao
AU - Yu, Jilai
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2020/3
Y1 - 2020/3
N2 - In this paper, a family of new step-up series-parallel dual resonant switched-capacitor converters (SP-DRSCs) is proposed to extend the conversion ratio for high step-up applications. The converters feature a wide gain range, continuously adjustable, and enhanced light-load voltage regulation. All flying capacitors operate in resonance, eliminating high transient current spikes and charge sharing losses. Thus, zero-current-switching (ZCS) turn-on for all transistors and ZCS turn-off for all diodes are achieved. A comprehensive analysis of the operation principle, voltage-gain curves, stable regulation range, and voltage and current stress is given. An analytical method to quantify the passive component volume for the group of step-up dual resonance switched-capacitor converters is presented. Further design considerations to optimize the passive component volume of the proposed SP-DRSC and the effect of bulky bypass capacitors on the volume are discussed.
AB - In this paper, a family of new step-up series-parallel dual resonant switched-capacitor converters (SP-DRSCs) is proposed to extend the conversion ratio for high step-up applications. The converters feature a wide gain range, continuously adjustable, and enhanced light-load voltage regulation. All flying capacitors operate in resonance, eliminating high transient current spikes and charge sharing losses. Thus, zero-current-switching (ZCS) turn-on for all transistors and ZCS turn-off for all diodes are achieved. A comprehensive analysis of the operation principle, voltage-gain curves, stable regulation range, and voltage and current stress is given. An analytical method to quantify the passive component volume for the group of step-up dual resonance switched-capacitor converters is presented. Further design considerations to optimize the passive component volume of the proposed SP-DRSC and the effect of bulky bypass capacitors on the volume are discussed.
KW - Switched-capacitor converter (SCC)
KW - dual resonant
KW - passive component volume
KW - series-parallel (SP)
UR - http://www.scopus.com/inward/record.url?scp=85077189853&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2019.2930686
DO - 10.1109/TPEL.2019.2930686
M3 - Article
AN - SCOPUS:85077189853
SN - 0885-8993
VL - 35
SP - 2724
EP - 2736
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 3
M1 - 8769854
ER -