The finite state machine for control of high-frequency power electronics

The power density of converters and drives can benefit from higher operatin g frequencies, and adaptive control methods can increase system response an d stability. The functionality of the finite state machine provides an idea l platform to build a high-frequency adaptive controller from power electro nics applications. This article describes the essential features of a finit e state machine, the analysis and design basics, and how the adaptive contr ol methods ave used to increase the performance. To conclude, the design, s imulation and implementation of an FSM controller for a 1.5kW 25kHz power c onverter is presented.