Tester Development for Enbedded System's Power Supply

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Kiss Dávid
Department of Automation and Applied Informatics

When developing embedded electronic systems, it is critical to ensure the proper power supply for each circuit element.

Modern digital devices can load the voltage rails that are provided for their power supply with very high dynamics, and their power consumption depends largely on the software running on them.Taking this into consideration, it is difficult to determine whether the dimensions of the power circuits in a complete electronic device are properly calibrated, as it is problematic to modify the software, in order to test the power consumption.

The objective of my thesis was to design a device, that is capable of loading various voltage levels through programming, validating if they are operating in a proper way.

In the first half of my dissertation, I will introduce the operating principle of the power supply units, as well as the possible methods of their configuration, and the problems arising from their malfunction.I will analyze the accessible possibilities and methods to test power supply systems in general, and then choose a construction, to simulate this process specifically.Then, I will present the steps in which the printed circuit board (PCB) was designed.

In the second part of my thesis, I am writing about the failures that occurred when the circuit is assembled, and then briefly introduce the firmware written to run on the microcontroller.I will also present the client application that was created for the device, through which you can monitor the performance of the power supply while it is operating on different electrical loads.


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