<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0120-6230</journal-id>
<journal-title><![CDATA[Revista Facultad de Ingeniería Universidad de Antioquia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.fac.ing.univ. Antioquia]]></abbrev-journal-title>
<issn>0120-6230</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería, Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-62302016000400035</article-id>
<article-id pub-id-type="doi">10.17533/udea.redin.n81a04</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Unified control of DC-DC buck converter using dynamic adaptive controller for battery operated devices]]></article-title>
<article-title xml:lang="es"><![CDATA[Control unificado de convertidor buck DC- DC utilizando controlador adaptativo dinámico para dispositivos que funcionan con baterías]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kannabiran]]></surname>
<given-names><![CDATA[Kanimozhi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alagarsamy]]></surname>
<given-names><![CDATA[Shunmugalatha]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,ULTRA College of Engineering and Technology for Women Department of Electrical and Electronics Engineering ]]></institution>
<addr-line><![CDATA[Madurai ]]></addr-line>
<country>India</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Velammal College of Engineering and Technology Department of Electrical and Electronics Engineering ]]></institution>
<addr-line><![CDATA[Madurai ]]></addr-line>
<country>India</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<numero>81</numero>
<fpage>35</fpage>
<lpage>46</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-62302016000400035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-62302016000400035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-62302016000400035&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The objective of this paper is improving the dynamic response of DC-DC converter system with internal parameter uncertainties. The methodology of sliding mode control in existing works is based on Proportional Integral and Derivative Controller (PID). The present work addresses various issues on a unified approach for design and application of pulse-width modulation (PWM) based on Digital Adaptive Sliding Mode equivalent (ASM) control technique to buck converter for mobile phones operating in continuous conduction mode (CCM), and discontinuous conduction mode (DCM). The controller is gain scheduled to monitor the output loading condition, and adaptively changes the control parameters to give an optimum dynamic performance corresponding to any load variations. Further stability is analytically verified using Lyapunov stability criterion and the system is proved to be globally asymptotically stable. Finally, the effectiveness of the proposed method is verified by simulation and experiment. Stable steady state response with reduced ripple is obtained.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo de esta investigación es mejorar la respuesta dinámica del sistema de convertidor DC-DC con incertidumbres en los parámetros internos. La metodología de control por modo deslizante en las obras existentes se basa en un sistema de control proporcional-integral-derivativo (PID). El presente trabajo aborda diversas cuestiones en un enfoque unificado para el diseño y la aplicación de la modulación de ancho de pulso (PWM) basado en control digital por modos deslizantes adaptativos (CMD), técnica de control para el controlador buck para los teléfonos móviles que funcionan en modo continuo de conducción (MCC) y el modo de conducción discontinua (MCD). El controlador está programado para controlar la ganancia de la condición de carga de salida y cambiar adaptativamente los parámetros de control para dar un rendimiento dinámico óptimo correspondiente a las variaciones de carga. Además, la estabilidad se verifica analíticamente utilizando el criterio de estabilidad de Lyapunov y se prueba que el sistema es global y asintóticamente estable. Finalmente, la eficacia del método propuesto se verifica mediante la simulación y experimentación. Se obtiene una respuesta estable en estado estacionario con ondulación reducida.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Pulse width modulation]]></kwd>
<kwd lng="en"><![CDATA[adaptive sliding mode control]]></kwd>
<kwd lng="en"><![CDATA[buck converter]]></kwd>
<kwd lng="en"><![CDATA[gain scheduling]]></kwd>
<kwd lng="en"><![CDATA[Lyapunov stability]]></kwd>
<kwd lng="es"><![CDATA[Modulación de ancho]]></kwd>
<kwd lng="es"><![CDATA[control por modos deslizantes adaptativos]]></kwd>
<kwd lng="es"><![CDATA[convertidor buck]]></kwd>
<kwd lng="es"><![CDATA[ganancia programación]]></kwd>
<kwd lng="es"><![CDATA[estabilidad de Lyapunov]]></kwd>
</kwd-group>
</article-meta>
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