Practical Performance Analysis of Complex Switched-Capacitor Converters


This paper introduces a new analysis technique for complex switched-capacitor (SC) converters. It uses conventional circuit analysis methods to derive state-space models of each switching mode. Steady-state performance is derived and expressed as an equivalent resistance. Whereas previous techniques have provided either the detailed performance of a simple SC converter or the limiting performance of a complex SC converter, this new method is flexible enough to provide detailed performance for any practical converter. Nonuniform component choices, asymmetric duty cycle, and other deviations from an ideal converter can be readily included. Dynamics can also be analyzed. The model has been validated through simulation techniques and experimental data collected from laboratory testing.


Electrical and Computer Engineering


Leonard Wood Institute
U.S. Army Research Laboratory
National Science Foundation (U.S.)
University of Missouri Research Board


This research was sponsored by the Leonard Wood Institute in cooperation with the U.S. Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-07-2-0062. This work was supported in part by the University of Missouri Research Board and in part by the National Science Foundation under Award ECCS-0900940.

Keywords and Phrases

DC-DC Converter; Switched-Capacitor (SC) Converter; Analysis Techniques; Conventional Circuits; Duty Cycles; Equivalent Resistance; Experimental Data; Laboratory Testing; Limiting Performance; Nonuniform; Performance Analysis; Simulation Technique; State-Space Models; Steady State Performance; Switched Capacitor Converter; Switching Modes; Capacitors; Computer Simulation; Electric Network Analysis; HVDC Power Transmission; DC-DC Converters

International Standard Serial Number (ISSN)

0885-8993; 1941-0107

Document Type

Article - Journal

Document Version


File Type





© 2011 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jan 2011