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Browse Journals & Magazines > Circuits and Systems I: Regul ...> Volume:55 Issue:5 Help

Optimal PWM Control of Switched-Capacitor DC–DC Power Converters via Model Transformation and Enhancing Control Techniques

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5 Author(s)
Ho, C.Y.-F. ; Sch. of Math. Sci., Univ. of London, London ; Ling, B.W.-K. ; Yan-Qun Liu ; Tam, P.K.-S.
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This paper presents an efficient and effective method for an optimal pulsewidth-modulated (PWM) control of switched-capacitor dc-dc power converters. Optimal switching instants are determined based on minimizing the output ripple magnitude, the output leakage voltage and the sensitivity of the output load voltage with respect to both the input voltage and the load resistance. This optimal PWM control strategy has several advantages over conventional PWM control strategies: 1) it does not involve a linearization, so a large-signal analysis is performed; and 2) it guarantees the optimality. The problem is solved via both the model transformation and the optimal enhancing control techniques. A practical example of the PWM control of a switched-capacitor dc-dc power converter is presented.

Published in:
Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:55 ,  Issue: 5 )

Date of Publication: June 2008

Page(s):
1382 - 1391
ISSN :
1549-8328
INSPEC Accession Number:
10050664
Digital Object Identifier :
10.1109/TCSI.2008.916442
Product Type:
Journals & Magazines
Date of Current Version :
06 June 2008
Issue Date :
June 2008
Sponsored by :
IEEE Circuits and Systems Society

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