FPGA-based Implementation of Low Speed Damping Controller for Hybrid Stepping Motor Applied to Sun Tracker

In this paper, a Bang-Bang control technique of the hybrid stepper motor is studied in order to control the position to obtain a smooth movement. The first part describes and discusses the motor model. The second part details and compares the conventional control technique to the classic Bang-Bang controller. The main objective is to show the benefits of the latter in performing a stable and precise control. Finally, the simulations and the experimental results obtained are presented and discussed. The concordance of the results presented justifies the use and confirms the effectiveness of the controller used for smoothing the position.