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

The theoretical and practical details involved in the control design and closed-loop analysis of a step-down switched-capacitor (SC) DC-to-DC converter are presented. The state-space averaging technique is applied to extract the small-signal dynamics of the power stage, and a graphical loop gain met...

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Veröffentlicht in:	IEEE transactions on aerospace and electronic systems 2001-07, Vol.37 (3), p.1099-1107
Hauptverfasser:	Choi, Byungcho, Lim, Wonseok, Choi, Seungwon
Format:	Artikel
Sprache:	eng
Schlagworte:	Aircraft components Capacitors Control design Control systems Converters DC-DC power converters Design engineering Dynamic tests Dynamics Electronic systems Feedback loop Gain Performance analysis Performance gain Pulse width modulation State feedback Switches Switching converters
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Beschreibung
Zusammenfassung:	The theoretical and practical details involved in the control design and closed-loop analysis of a step-down switched-capacitor (SC) DC-to-DC converter are presented. 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 an SC converter. The results of the control design and closed-loop analysis are substantiated by experiments using a prototype SC converter.
ISSN:	0018-9251 1557-9603
DOI:	10.1109/7.953261