Hi,
I'm trying to work out how to get an RPM signal for an existing BLDC motor, motor is a sensorless type (uses EMF).
Since each winding of a BLDC motor is energized in a positive way for each rotation of the motor, can I just use a current detection circuit on one of the windings to determine an RPM pulse/trigger? May require some circuitry to clean up the signal.
Thank you for any responses.
I'm trying to work out how to get an RPM signal for an existing BLDC motor, motor is a sensorless type (uses EMF).
Since each winding of a BLDC motor is energized in a positive way for each rotation of the motor, can I just use a current detection circuit on one of the windings to determine an RPM pulse/trigger? May require some circuitry to clean up the signal.
Thank you for any responses.