How a servo motor works？

A servo motor is a type of rotary actuator that is used to control the angular position of a shaft. It consists of a motor, a control circuit, and a feedback mechanism.

Here's how it works:

The control circuit receives a command signal from an external controller, which specifies the desired angular position of the shaft.

The control circuit sends a pulse width modulated (PWM) signal to the motor, which controls the speed and direction of the motor.

The motor rotates the shaft to the desired position.

The feedback mechanism, typically a rotary encoder or a potentiometer, measures the actual angular position of the shaft and sends a feedback signal back to the control circuit.

The control circuit compares the feedback signal to the command signal and adjusts the PWM signal as needed to correct any errors and bring the shaft to the desired position.

Servo motors are often used in applications where precise control of movement is required, such as in robotics, aircraft control systems, and factory automation. They are also commonly used in hobby projects, such as radio-controlled vehicles and model airplanes.

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