Projects:2014S1-54 Engineering of a CubeSat Power System

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Project Aims

1.The aims of this project is building an electronic power system for a CubeSat, a kind of micro satellite. The system can obtain power from solar panels and output steady for other subsystems, meanwhile the system can store energy to a battery.

2.The circuit of this project is basically designed and emulated by Altium with a printed circuit board as the final deliverable final.

3.Also, using I2c bus protocol to connect with micro-controller, switches and converter are expected. Then to achieve both 5V 2A output and 3.3V 2A output by selecting with switches.

Background

A CubeSat as a type of micro satellite is about only one litre and the specifications were developed by California Polytechnic State University and Stanford University in 1993. A CubeSat plays a significant role in universities worldwide to explore space now. Researchers use this kind of micro-satellite to perform space science because of its convenience, low cost and customisation.

As an electronic device, a CubeSat requires stable and sufficient energy to work. Energy for a CubeSat is usually from sunlight or battery when the CubeSat is in shadow. Solar panels help to transform solar energy to electricity for the device and EPS is used to steady electricity, charge battery and convert to other components. Therefore, EPS, as a component of a CubeSat, is essential to support the whole system and ensure the CubeSat work correctly.

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