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| en:iot-open:practical:hardware:itt:avr:stepper [2025/09/02 11:29] – raivo.sell | en:iot-open:practical:hardware:itt:avr:stepper [2025/09/02 11:30] (current) – raivo.sell | ||
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| - | Stepper motors are widely used in applications that demand accuracy. Unlike DC motors, stepper motors do not have brushes or a commutator – they have several independent coils, which are commutated with exterior electronics (drivers). Rotating the rotor is done by commutating coils step by step, without feedback. This is one of the faults in stepper motors – in case of mechanical overloading, | + | Stepper motors are widely used in applications that demand accuracy. Unlike DC motors, stepper motors do not have brushes or a commutator – they have several independent coils, which are commutated with exterior electronics (drivers). Rotating the rotor is done by commutating coils step by step, without feedback. This is one of the faults in stepper motors – in case of mechanical overloading, |
| - | * Variable Reluctance Stepper (high accuracy, low torque, low price) | + | |
| - | * Permanent Magnet Stepper (low accuracy, high torque, low price) | + | |
| - | * Hybrid Synchronous Stepper (high accuracy, high torque, high price) | + | |
| - | + | ||
| - | Variable reluctance stepper motors have toothed windings and a toothed iron rotor. The largest pulling force is when the teeth of both sides are covering each other. In a Permanent magnet stepper motor, just like the name hints, there are permanent magnets that orient according to the polarity of the windings. In hybrid synchronous steppers, both technologies are used. | + | |
| Depending on the model of stepper motor, performing one full rotation (360 degrees) of the rotor demands hundreds of steps of commutations. For stable and smooth movement, appropriate control electronics are used, which control the motor according to its parameters (inertia of the rotor, torque, resonance, etc.). In addition to control electronics, | Depending on the model of stepper motor, performing one full rotation (360 degrees) of the rotor demands hundreds of steps of commutations. For stable and smooth movement, appropriate control electronics are used, which control the motor according to its parameters (inertia of the rotor, torque, resonance, etc.). In addition to control electronics, | ||
