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Modeling of load-transient response of direct-duty-ratio-controlled buck converter

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publication19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017
PublisherIEEE
Pages1-10
Number of pages10
ISBN (Electronic)978-90-75815-27-6
DOIs
Publication statusPublished - 9 Nov 2017
Publication typeA4 Article in a conference publication
EventEUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS -
Duration: 1 Jan 1900 → …

Conference

ConferenceEUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS
Period1/01/00 → …

Abstract

This paper provides a simple analytical model for the closed-loop output impedance of a direct-duty-ratio-controlled buck converter, which can be used to predict the behavior of the output voltage during a load-current transient. The modeling method utilizes standard control theory to obtain the model for the sensitivity function based on the crossover frequency and phase margin of the output-voltage feedback loop as well as on a clever estimate for the corresponding open-loop output impedance. The modeling method is validated by means of simulations and experimental tests.

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