Pablo F. Miaja

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Presentation skills, such as oral expression and public speaking, have normally been relegated to the background in engineering degree programs. In recent years, however, the labor market has specifically demanded these kinds of skills in engineers. Accordingly, new engineering degrees, adapted to the goals of the Bologna Declaration or ABET criteria,(More)
This paper presents the introduction of ProblemBased learning (PBL) in a power electronics subject at the University of Oviedo (SPAIN) by means of two practical projects: the design and construction of a Switching-Mode Power Supply (SMPS) prototype and the static study of a dc-dc converter topology. The objective of this change in the traditional(More)
The envelope tracking technique is used to increment the efficiency of modern radiofrequency trans­mitters. It is based on supplying the linear radiofrequency power amplifier of the transmitter with a time-varying voltage that tracks the envelope of the information signal being transmitted. These systems require a converter capable of varying its(More)
This paper presents a complete analytical switching loss model for power MOSFETs in low voltage switching converters. Traditionally, the piecewise linear model has been used to obtain both switching losses and efficiency in these converters, due to its simplicity and good performance. However, the use of the latest low voltage power MOSFET generations and(More)
This paper presents the introduction of problembased learning (PBL) in a power electronics course at the University of Oviedo, Gijón, Spain, by means of two practical projects: the design and construction of a switching-mode power supply (SMPS) prototype and the static study of a dc–dc converter topology. The goal of this innovation was for students to(More)
The static design of ac/dc and dc/dc switching-mode power supplies (SMPS) relies on a simple but repetitive process. Although specific spreadsheets, available in various computer-aided design (CAD) programs, are widely used, they are difficult to use in educational applications. In this paper, a graphic tool programmed in MATLAB is presented, which allows(More)
The static design of AC/DC and DC/DC switching power supplies relies on a simple but repetitive pro­cess. Although specific spreadsheets, avalaible in various CAD programs, are widely used, they are difficult to use in educational applications. In this paper a graphic tool programmed in MATLAB is presented to allow students to make a rapid static(More)
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