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

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3 Author(s)
Byungcho Choi ; Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Taegu ; Wonseok Lim ; Seungwon Choi

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

Published in:

IEEE Transactions on Aerospace and Electronic Systems  (Volume:37 ,  Issue: 3 )