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In this paper a hybrid control for buck converters is proposed that is able to guarantee voltage tracking and maximum voltage and current ripple simultaneously. The controller is based on the piece-wise model of the converter and it works by switching on or off once a set of performance surfaces is reached. The controller provides global attractiveness and asymptotic stability to a bounded set.
In this paper, we examine several techniques for computing the Green's functions inside infinite parallel plate waveguides considering point sources. The basic spectral and spatial domain approaches are reviewed, showing their main particularities. Next, the Ewald method is applied for the evaluation of these functions, in order to enhance the convergence in singular situations. Besides, a novel alternative...
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