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...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2011-01, Vol.26 (1), p.127-136
Main Authors: Henry, J M, Kimball, J W
Format: Article
Language:English
Subjects:
Applied sciences
Asymmetry
Capacitors
Circuit analysis
Circuit properties
Circuit testing
Constraining
Converters
DC-DC converter
DC-DC power converters
Deviation
Dynamic tests
Electric power
Electric resistance
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Equations
Equivalence
Exact sciences and technology
Integrated circuits
Laboratories
Mathematical models
Performance analysis
Performance evaluation
Signal convertors
Simulation
Steady-state
switched-capacitor (SC) converter
Switching circuits
Switching converters
Switching, multiplexing, switched capacity circuits
Theoretical study. Circuits analysis and design
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Summary: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.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2010.2052634