I am new to the site and would like some help with DC motor speed loop control.
A basic proportional control loop actually works. The problem I am having is that I need my main power supply to vairy, yet keep the motor speed constant. The project deals with a helicopter where I need to keep constant speed independent of the battery voltage slowy dropping off.
I have designed and used PID loops for DC gear motor position control, but I am having trouble using similar equations in this application that required speed control and not position control.