Control101 MATLAB toolbox 13. Proportional design using frequency response

This resource provides an interactive app file (MATLAB virtual laboratory) which demonstrates how to perform a simple gain feedback design using Bode diagrams and a phase margin criteria. The app includes a number of pre-coded examples and allows the user to investigate both how to meet the PM requirement, and the impact of this on closed-loop behaviour. The manual and app also give guidance on a mechanistic design to achieve a specified phase margin. The app also allows the user to investigate the impact of a small system delay on margins and behaviour.