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In this paper on base of vector analyzes are obtained simplified expressions for calculation of parameters of elements of Buck-Boost AC-AC converter with changeable configuration, which ensures quasi sinusoidal characteristics of source and load current. Load is made of active and inductive components, with parallel connected smoothing capacitor but at input stage current smoothing LC input filter...
The series resonant DC/DC converter with an isolation transformer and bridge mode inverter input junction, at its operation in the Buck case, is investigated, at that input DC supply circuit comprises the qZ (quasi-Z) link as impedance source. Operation at such Buck case can be provided under different inverter bridge control methods. Recommended by the literature sources, is the method of control...
Paper includes efficiency change test results from standardized power supply depending on input voltage and efficiency tests of transformer based voltage regulator with different loads. Approximately is calculated necessary efficiency of voltage regulator to be used with power supply. THD analysis is done of output voltage signal, harmonic content has been measured as well. Brief explanation of possible...
In the paper some results of investigation of the single-phase transformer based AC pulse modulation mode regulated system of network voltage stabilization are presented. Switching processes in the device are regarded to application of transistor switches with proper snubbering circuits. Computer simulation as well experimental investigation of a model are done and its outcomes are presented.
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