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dc.contributor.authorBaheri, Javad
dc.contributor.authorSaberkari, Alireza
dc.contributor.authorKhorgami, Omid
dc.contributor.authorAlarcón Cot, Eduardo José
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.date.accessioned2018-06-12T18:07:52Z
dc.date.available2018-06-12T18:07:52Z
dc.date.issued2018-03-20
dc.identifier.citationBaheri, J., Saberkari, A., Khorgami, O., Alarcon, E. Design and implementation of a sliding-mode controller for digital low-dropout/linear regulators. "IEEE transactions on circuits and systems II: express briefs", 20 Març 2018, vol. 65, núm. 12, p. 1889-1893.
dc.identifier.issn1549-7747
dc.identifier.urihttp://hdl.handle.net/2117/118046
dc.description.abstractThis paper presents an approach to utilize of sliding-mode (SM) controller in digital low-dropout/linear regulators. Various design aspects, including the extraction of the regulator state-space model and sliding coefficients by considering the hitting, existence, and stability conditions are described. Moreover, the freeze control block is introduced as a solution to compensate the high frequency chattering phenomenon of SM, resulting in reduction of switching losses. In order to verify the statements, a quasi digital low-dropout/linear regulator (QDLDO) is implemented in a discrete form on a PCB. The circuit consists of the proposed current-mode current feedback amplifier (CFA)-based SM controller and switchedmode PMOS array driven by a bidirectional serial shift register, which is controlled by the SM controller. The results reveal that the controller detects the load changes rapidly, and eliminates the output limit-cycle oscillation, providing a robust and stable output voltage.
dc.format.extent1 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica::Circuits integrats
dc.subject.lcshIntegrated circuits
dc.subject.otherRegulators
dc.subject.otherShift registers
dc.subject.otherTrajectory
dc.subject.otherClocks
dc.subject.otherCapacitors
dc.subject.otherIntegrated circuits
dc.titleDesign and implementation of a sliding-mode controller for digital low-dropout/linear regulators
dc.typeArticle
dc.subject.lemacCircuits integrats
dc.contributor.groupUniversitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits
dc.identifier.doi10.1109/TCSII.2018.2817482
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://ieeexplore.ieee.org/document/8320310/
dc.rights.accessOpen Access
drac.iddocument23182095
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorBaheri, J., Saberkari, A., Khorgami, O., Alarcon, E.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameIEEE transactions on circuits and systems II: express briefs
upcommons.citation.startingPage1889
upcommons.citation.endingPage1893


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