What is the difference between servo motors and regular motors

Simply put, the main difference between servo motors and ordinary motors is:
The servo motor has more precise positioning and feedback. Ordinary motors don't have them, they just turn on when powered on.

1. Comparison of feedback methods between servo motors and ordinary motors
A servo motor can achieve precise control, allowing it to rotate as much as you want it to, and it will also provide feedback to achieve closed-loop control. The encoder will provide feedback to see if it has indeed rotated much, thus achieving precise control.

It can achieve precise positioning by turning it at the specified angle/number of turns at the speed you specify, using a lead screw, etc.
A regular motor rotates when powered on and stops when it runs out of power. If you have to say that it has any other functions besides rotation, it is a forward and reverse rotation.

2. Comparison of servo motors and ordinary motors in terms of structure
The mechanical structure of servo motors and ordinary motors is similar in principle, consisting of two parts: stator and rotor. Their main differences are mainly reflected in the blade structure and driving circuit.

The characteristic of a servo motor is that its direction of motion is proportional to the voltage between the power supply, and is usually composed of three parts: encoder, controller, and servo motor. Encoders can provide higher resolution to ensure accuracy control; The controller is the "brain" that specifies the direction, speed, and torque of motor operation, responsible for converting the control signals sent by the driver into corresponding motor motion instructions. The driver provides power, which is a device that connects the motor and power supply, and can accurately deliver the required electrical energy to the motor based on control signals.

A regular motor consists only of the power supply part and the motor body, and the speed or torque of the motor can be further determined based on the magnitude of the connected voltage. Usually, ordinary motors use open circuits, and the speed of operation depends on the voltage, so the selection of controllers is not as important as servo motors.

3. Comparison between servo motors and ordinary motors in terms of maintenance
Servo motors are expensive and require complex maintenance, while ordinary motors are inexpensive and easy to maintain.

In applications such as automation, robotics, and manufacturing that require precision, high speed, and efficient control, servo motors have more precise position, speed, and torque control capabilities, making them a better choice. It also has higher prices and more complex control systems.

And in general applications with low precision and low load, it is common. For example, office equipment, household appliances, small machinery, etc., or for low accuracy or cost limitations, ordinary motors can be chosen as more suitable.

Therefore, in practical motor applications, especially in the industrial field, it is often necessary to optimize servo motors and ordinary motors according to the actual situation. We need to choose the appropriate motor type based on specific application scenarios and requirements.