Design and Characterization of a Power Supply Board for RF Avionics Application

This thesis is focused on the design of the Power Supply Board (PSB) of a Software Defined Radio (SDR) for micro-satellites system intended to be compatible with NASA Deep Space Network (DSN). The thesis work has been carried out with the Italian aerospace company Argotec in Turin. The aim of the thesis is in accordance to the objective of Argotec company of designing a SDR to be used for their own satellites and to compete with current SDR in the aerospace market. The focal point is the definition of the architecture of the PSB and so the definition of the converters that will be implemented during the fabrication and the design of the primary isolated converter. After an initial research and study of the different topologies which can be implemented for space application, several analyses are carried out in order to find which is the best architecture for our purpose using the LTspice software. After designed a custom isolated converter which is the core of the architecture, a Printed Circuit Board (PCB) is designed for better visualize the end goal and for tests.