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 both analytically and experimentally that a higher n in the step-down capacitor stage does not necessarily lead to an overall improved power efficiency. A design and optimization method is thus proposed for the improved SC-buck converter.
|Number of pages||10|
|Journal||IEEE Transactions on Circuits and Systems I: Regular Papers|
|Publication status||Published - 17 Apr 2012|
- High voltage gain converter
- hybrid switch-capacitor buck converter
ASJC Scopus subject areas
- Electrical and Electronic Engineering