Using the Arduino Uno to teach digital control of power electronics

There has been tremendous growth in digital control of power converters, and yet many power electronics students have limited experience with embedded systems. The Arduino Uno is an excellent learning platform for embedded programming, but has limited capabilities using the standard libraries. This work explores the use of the Arduino Uno for power electronics applications. With some extra libraries or with direct access to a few registers, the Arduino Uno can support switching frequencies around 100 kHz, suitable for an educational environment. Implementation of key features, such as PWM and analog-to-digital converters, is discussed, along with an example experiment.