Design and Analysis of GaN Based Electronic Power Conditioner for Space Applications

Abstract

This paper presents the design and analysis of a forward converter-based multi-output topology utilizing Gallium Nitride (GaN) power devices for Electronic Power Conditioner (EPC) applications in space systems. The proposed topology is tailored for high-frequency operation, leveraging the superior switching characteristics of GaN devices to achieve improved efficiency. To further minimize conduction losses, synchronous rectification is implemented across the point-of-load (POL) converters associated with each output stage. A comprehensive magnetic design approach is explained to support efficient energy transfer in a compact multi-output configuration. The work includes detailed loss analysis based on real GaN device parameters, offering insights into both switching and conduction losses. Simulation results are used to validate the theoretical analysis, providing steady-state waveforms that demonstrate the functional integrity and high efficiency of the proposed converter. This research supports the viability of GaN-based forward converters as a compelling solution for next-generation space power electronics. © 2025 IEEE.