Servo motors are motors that are able to maintain a specific position or speed, which is typically controlled by a feedback loop. Stepper motors, on the other hand, are motors that move in discrete steps, and do not typically have a feedback loop to control their position or speed.
However, it is possible to add a feedback loop to a stepper motor, which can allow it to maintain a specific position or speed. This type of stepper motor with feedback loop is sometimes referred to as a closed-loop stepper motor, or a servo stepper motor.
Closed-loop stepper motors can provide higher precision and accuracy than open-loop stepper motors (without a feedback loop), but they are also more complex and expensive.
Therefore, the answer to the question of whether a stepper motor with a feedback loop is a servo motor is: not necessarily, but it can be.
