Abstract
Conventional Active Clamp-Forward topology is studied for a satellite converter owing to its comparitively simple structure, minimum number of components and fine clamping capability concerning its switch voltage stress. However, it has a high switch voltage stress,a high di/dt level and has pulsating input current shape. These are disadvantageous with respect to the EMI filter size and high input voltage converter applications.To get the better of these drawbacks, a new ACF topology with a continuous input current waveform is proposed . By this proposed waveform ,the voltage stresses on the main switches are relieved. This is crucial reliability of satelite FET switches, by utilizing a two series connected structure. These conditions will allow the proposed converter to serve as a high input voltage, high power density satellite converter.
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