A study of input filter design for high power high frequency space applications

Satellites are energized by the dc output power of solar panel. Every subsystem of a satellite requires stable and highly efficient power supply. The selection and design of an input filter is potentially important in power supply design. As the number of stages increases, the attenuation required will reduces; However the design complexity increases. This paper unveils the optimization of a two stage input filter for realizing a Phase Shifted Full bridge (PSFB) topology Electronic Power Conditioner for space applications. Attenuation challenges and filter interaction problems are tried to avoid with a novel optimization methodology. The experimental wave-forms and simulations in MATLAB and PSPICE are shown to validate the results.