Design of EMI Improved Isolated DC/DC Converter for Space-based Applications

Abstract

For space exploration, for instance by use of Cube-Sats, there is need for small converters which can both operate isolated and non-isolated with a low EMI profile. Incorporating Electromagnetic Compatibility (EMC) within the design stage is therefore crucial, and can be achieved by applying different EMI mitigation techniques from the very start of the design. This paper investigates inherent reduction of EMI via interleaving, balancing, and symmetrically designing a DC/DC converter. Mass and volume restraints are considered as well during the design. It will be shown that these relatively advanced (but matured) design techniques, already well known and utilized on Earth, can be utilized for a novel design for space based applications with beneficial charateristics.