Title :
Analysis of a high-voltage-gain hybrid switched-capacitor buck converter
Author :
Xiong, Song ; Tan, Siew-Chong ; Wong, Siu-Chung
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Hong Kong, China
Abstract :
This paper presents an analysis on the effect of having different number of capacitors n in the first-stage switched-capacitor circuit of an improved hybrid switched-capacitor buck converter for high-voltage-gain conversion. Various aspects of the topology, operation, and efficiency are investigated. It is shown that a higher n in the step-down capacitor stage does not necessarily lead to an overall improved power efficiency.
Keywords :
DC-DC power convertors; switched capacitor networks; DC-DC converters; first-stage switched-capacitor circuit; high-voltage-gain conversion; high-voltage-gain hybrid switched-capacitor buck converter analysis; step-down capacitor; Capacitors; Equivalent circuits; Silicon; Switches; Switching circuits; Switching loss; Voltage control;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5937888
