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An active bypass structure that was initially proposed as a solution to minimize the reduction in produced power caused by mismatch of photovoltaic modules is compared in terms of efficiency with single and distributed maximum power point solutions based in more conventional dc-dc structures. The analysis and simulations performed under simplified losses assumptions demonstrate that the bypass structure...
The presented work studies various effects in the input-current waveform in switched Voltage Regulator converters. As a first step, the input current has been mathematically characterized. This description is called up to find the relationship among the number of phases of the power converter, its duty cycle and its harmonic content. The following conclusion associated to the last model, is the optimal...
Digital predictive techniques are nowadays an attractive option for current-mode controlled voltage regulator modules. This article examines the implementation of two digital predictive control laws and their application in a typical case for this kind of loads. The simulation results presented in this paper illustrate the pros and contras of both techniques.
A new digital current control technique for DC-DC switching converters operating indistinctly in continuous (CCM) or in discontinuous (DCM) conduction mode is reported. The control method consists in predicting the switching instant at which the current inductor reaches a reference by taking two samples of this current and computing the equation of a straight line. The resulting predictive digital...
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