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In this paper, we have analyzed the behaviour of a switched mode power supply (flyback) in radiated near-field. We have modelled it by equivalent diagrams representing electric operations, including the parasitic elements. First, we have tried to link the amplitude of the spectra of the radiated magnetic field with the electrical quantities (current and voltage) during the different working phases...
Power transformer insulation systems are subjected to many stresses during normal operation due to lightning and switching. If the spectrum of incoming surge voltage matches the winding one, the corresponding resonance will be excited. Therefore external transients occurring in power systems might trigger internal overvoltages with large maximum value in transformer windings. Overvoltages having such...
In this paper a contactless inductive energy transmission system is presented, which allows a transmitted power up to 1 kW at an overall efficiency of more than 90% and a very high positioning tolerance of both coils to each other. Examples of applications with positioning flexibility are energy supplies for consumers on bad balanced shafts, battery charging systems for wafer processing equipment...
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