Diseño de disipadores de calor pasivo para semiconductores de potencia con la curva de Cesaro
DOI:
https://doi.org/10.17533/udea.redin.20200162Palabras clave:
análisis térmico, disipador de calor, curva de Cesaro, ANSYS, semiconductores de potenciaResumen
En el diseño de circuitos electrónicos se destaca la etapa de potencia, la cual se encarga de aumentar las características de una señal, como la corriente y el voltaje, para un apropiado funcionamiento del equipo a desarrollar. Sin embargo, esta etapa está conformada por elementos como los transistores, los cuales pueden presentar un bajo rendimiento, debido al aumento indeseado de temperatura, como consecuencia de alcanzar la potencia deseada. Para mitigar la perdida de potencia y con ello, la elevación de temperatura, se propone el manejo de disipadores de calor, con el propósito de mantener el trabajo de la etapa de potencia en un nivel estable y evitar fracturas térmicas dentro del circuito. En el siguiente trabajo, se exponen los resultados obtenidos del análisis térmico en elementos finitos del disipador de calor con aletas en forma de curva de Cesaro, para semiconductores de potencia, lo cual evidenció el aumento en el flujo de calor, respecto a los comerciales y de este modo, facilitar la evacuación de calor para el acondicionamiento de la tensión y/o corriente.
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