the main goal is to realize a cheap system to estimate(with a reasonable precision, not the absolute precision achievable with an encoder)the position of one or more linear actuators. It should be very useful to operate in PWM, controlling the speed (useful to sincronize the positions of two...
Has anyone any experience or technical reference in sensorless control of (100W) DC brush motors?
I've to control the position of a DC brush motor without the use of encoders, extracting the information from the motor current (the DC power is not stabilized so there is a voltage ripple at 100Hz...
