Hi,
I am generating a sinusoidal signal over a frequency range of 50Hz to 5kHz for a current range of 10mA to 300mA using a PI controller. The controller works fine for a frequency up to 3kHz, but above 3kHz the controller oscillates from 0 to high. Also, the controller shows the same behavior when the sampling rate is higher than 50k. I think it is the problem with the dt(s) of the controller, it is kept at -1 (default value). Could someone please try to help me solve this problem.
