The internal sensor (encoder or potentiometer) constantly reads the actual position of the shaft.
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: High efficiency, high intermittent torque, excellent positional accuracy. servo motor ppt presentation download
Do you need an extra slide covering ? (e.g., Arduino micro-servos, Siemens industrial drives)
Can rotate 360 degrees, with the PWM signal controlling speed and direction rather than a fixed angle. Slide 7: Key Advantages High Precision: Accuracy often within ±0.01 degrees . The difference between target and actual location
| Feature | Servo Motor | Stepper Motor | | :--- | :--- | :--- | | | Closed-loop (uses feedback) | Typically open-loop (no feedback) | | Position Control | High precision at any speed; requires an encoder | Inherently precise positioning by step increments | | Torque at High Speed | Maintains constant torque | Torque drops off significantly | | Speed / Efficiency | High speeds, high efficiency | Best at low speeds, less efficient | | Cost & Complexity | More expensive, more complex electronics | Less expensive, simpler electronics | | Risk / Reliability | No risk of losing position | Can lose steps (position) under high load | | Ideal Applications | Robotics, CNC, conveyors, high-speed automation | 3D printers, cameras, lab equipment, simple positioning |
The motor is controlled by sending an electrical pulse of variable width. more complex electronics | Less expensive
The difference between target and actual location.
Selecting between AC and DC depends on power requirements and budget constraints.
Electrical and mechanical characteristics Important specifications include:
