Optimal PWM control of switched-capacitor DC-DC power converters via model transformation and enhancing control techniques

Ho, C, Ling, B, Liu, Y, Tam, P and Teo, K 2008, 'Optimal PWM control of switched-capacitor DC-DC power converters via model transformation and enhancing control techniques', IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 55, no. 5, pp. 1382-1391.


Document type: Journal Article
Collection: Journal Articles

Title Optimal PWM control of switched-capacitor DC-DC power converters via model transformation and enhancing control techniques
Author(s) Ho, C
Ling, B
Liu, Y
Tam, P
Teo, K
Year 2008
Journal name IEEE Transactions on Circuits and Systems I: Regular Papers
Volume number 55
Issue number 5
Start page 1382
End page 1391
Total pages 10
Publisher IEEE Circuits and Systems Society
Abstract 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.
Subject Signal Processing
Keyword(s) Model transformation technique
Optimal enhancing control technique
Optimal pulsewidth-modulated (PWM) control
Switched-capacitor dc-dc power converters
DOI - identifier 10.1109/TCSI.2008.916442
Copyright notice © IEEE
ISSN 1057-7122
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