Control design and closed-loop analysis of a switched-capacitor DC-to-DC converter

This paper presents the theoretical and practical details involved in the control design and closed-loop analysis of a step-down switched-capacitor DC-to-DC power converter. The state-space averaging technique is applied to extract the small-signal dynamics of the power stage, and a graphical loop g...

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Bibliographic Details
Main Authors: Wonseok Lim, Byungcho Choi, Yonghan Kang
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
Control design
DC-DC power converters
Equations
Pulse width modulation
Signal analysis
Signal design
Switches
Switching converters
Transfer functions
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Summary:This paper presents the theoretical and practical details involved in the control design and closed-loop analysis of a step-down switched-capacitor DC-to-DC power converter. The state-space averaging technique is applied to extract the small-signal dynamics of the power stage, and a graphical loop gain method is used to design the feedback compensation and analyze the closed-loop performance of a switched-capacitor converter. The results of the control design and closed-loop analysis are substantiated by experiments on a prototype switched-capacitor converter.
ISSN:0275-9306
2377-6617
DOI:10.1109/PESC.2001.954299