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A high voltage and high power fault tolerant application of a resonant converter is presented. The resonant converter load shows frequent short circuits making the load voltage drop to zero within some us, implying high stress on the main circuit components. A load voltage short circuit fault tolerant system is suggested by including a novel way of augmenting the controller with a load voltage estimator...
We present an algorithm for identification of the load capacitance for Switch Mode Power Supplies. The algorithm does not inject any disturbance that can cause additional noise on the output voltage of the power supply. The algorithm is computationally effective and is suitable for implementation in hardware or software. Experiments show an uncertainty of σc = 100 μF for the capacitance estimate using...
We present a number of approximation algorithms for voltage feedforward compensation of Switch Mode Power Supplies. The complexity of the algorithms differs, as well as their ability to suppress input voltage transients. The compensation is attained by manipulating the integral part of the feedback control law reducing the computation requirements and makes it suitable for firmware realization in...
In this paper we study how the capacitive load influences the system dynamics in switched DC/DC converters. A study is made about how the system dynamics depend on the values of the capacitance and ESR. Parallel coupling of capacitors to achieve larger capacitance is studied from a control loop stability point of view. We define a capacitor with a given minimum capacitance and a certain ESR range,...
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