<?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>1815-5928</journal-id>
<journal-title><![CDATA[Ingeniería Electrónica, Automática y Comunicaciones]]></journal-title>
<abbrev-journal-title><![CDATA[EAC]]></abbrev-journal-title>
<issn>1815-5928</issn>
<publisher>
<publisher-name><![CDATA[Universidad Tecnológica de La Habana José Antonio Echeverría, Cujae]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59282022000300029</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis electroacústico y térmico de un altavoz de bobina-móvil de tipo overhung a través de LTspice]]></article-title>
<article-title xml:lang="en"><![CDATA[Electroacoustic and thermal analysis of an overhung-type moving-coil loudspeaker using LTspice.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[F. Quinteros]]></surname>
<given-names><![CDATA[Nicolás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[M. Espinoza]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,aff1  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>43</volume>
<numero>3</numero>
<fpage>29</fpage>
<lpage>44</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59282022000300029&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59282022000300029&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59282022000300029&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En esta investigación se presenta una extensión del trabajo de altavoces en SPICE realizado por Leach, para un altavoz dinámico de bobina móvil de tipo overhung, en que la altura de la bobina sobresale del entrehierro magnético. A través del software LTspice, que simula SPICE, se desarrollaron los modelos eléctrico, mecánico y acústico equivalentes completos, a partir de las analogías electroacústicas, las cuales permitieron verificar el modelo equivalente de Leach. Adicionalmente, se desarrollaron sub-circuitos que permitieron medir directamente la velocidad y velocidad de volumen emitida por el diafragma en el circuito mecánico equivalente completo. Además, se implementaron tres modelos de inductancia eléctrica y tres modelos de impedancia acústica de radiación. Y, finalmente se implementaron el modelo lineal térmico del altavoz y el modelo de resistencia con variación de temperatura de la bobina móvil. Los resultados de los modelos mostraron consistencia en las respuestas medidas y simuladas del altavoz utilizado. Los distintos modelos de inductancia eléctrica e impedancia acústica de radiación mostraron las ventajas y desventajas de su uso e implementación. El modelo lineal térmico mostró una buena estimación de la temperatura medida en el altavoz, excepto para el enfriamiento de la bobina-móvil. Por último, los resultados de la implementación del modelo térmico en la resistencia eléctrica del altavoz mostraron el comportamiento esperado según lo que indica la literatura, i.e., al aumentar la temperatura aumenta la magnitud de la impedancia eléctrica de entrada, disminuye el desplazamiento y velocidad del diafragma y disminuye el nivel de presión sonora.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This research presents an extension of the SPICE loudspeaker work done by Leach for an overhung-type moving-coil dynamic loudspeaker, where the height of the voice coil is greater than the magnetic gap's height. Using LTspice software, which simulates SPICE, the complete equivalent electrical, mechanical, and acoustic models from the electroacoustic analogies were developed, which allowed verifying the original equivalent model. Sub-circuits were then developed, allowing direct measurement of the velocity and volume velocity emitted by the diaphragm in the complete equivalent mechanical circuit. In addition, three models of electrical inductance and three models of radiation acoustic impedance were implemented. Furthermore, the thermal linear model of the loudspeaker and the resistance model with temperature variation of the voice coil were implemented. The results of the models showed consistency in the measured and simulated responses of the loudspeaker used. The different electrical inductance and radiation acoustic impedance models showed their use and implementation advantages and disadvantages. The thermal linear model showed a reasonable estimation of the measured temperature in the loudspeaker, except for the cooling of the voice coil. Finally, the results of the implementation of the thermal model on the electrical resistance of the loudspeaker showed the expected behavior as indicated in the literature, i.e., increasing the temperature increases the magnitude of the input electrical impedance, decreases the displacement and velocity of the diaphragm and decreases the sound pressure level.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Altavoces]]></kwd>
<kwd lng="es"><![CDATA[Efecto de la Temperatura]]></kwd>
<kwd lng="es"><![CDATA[Impedancia Eléctrica]]></kwd>
<kwd lng="es"><![CDATA[Respuesta en Frecuencia]]></kwd>
<kwd lng="es"><![CDATA[Modelo SPICE]]></kwd>
<kwd lng="es"><![CDATA[Simulación SPICE]]></kwd>
<kwd lng="en"><![CDATA[Loudspeakers]]></kwd>
<kwd lng="en"><![CDATA[Temperature Effect]]></kwd>
<kwd lng="en"><![CDATA[Electrical Impedance]]></kwd>
<kwd lng="en"><![CDATA[Frequency-response]]></kwd>
<kwd lng="en"><![CDATA[SPICE Model]]></kwd>
<kwd lng="en"><![CDATA[SPICE Simulation]]></kwd>
</kwd-group>
</article-meta>
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