Sending satellites into orbit becomes exponentially more expensive with weight and size, so designing high-voltage DC-DC converters that can achieve kilovolt level outputs in a small form factor is crucial to reducing costs. The Miniaturized Ultraviolet Imager (MUVI) aims to monitor Earthโs ionosphere and report weather patterns to climate scientists within a 2U cube satellite footprint. The imaging equipment consists of a microchannel plate and phosphor screen that require 2.5kV and 5.5kV respectively at microamp level currents. This report explains the implementation of a high voltage boost cascaded flyback converter to meet all of the MUVI satellite output voltage requirements. The small mechanical footprint of a cube satellite severely limits board size and component heights. This design further expands the power electronics field and provides inspiration for future space-rated voltage converters in small form factors. The results from circuit simulations validated the design as a viable solution for MUVIโs imaging equipment. A boost-flyback converter can achieve the required high voltage DC output while remaining within the 7ppm ripple specification. This report summarizes all of the circuit simulation results for both the power stage and analog circuitry that monitor and control the output voltage. The analog circuitry was hardware tested and validated for the monitoring and control signals. The power stage testing is scheduled for the Summer of 2021 so those results are not included in this report
