Stepper motor as a gen
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This document discusses using a stepper motor as a generator. It provides information on the group members, construction of stepper motors including main components like the stator and rotor, and operating principles such as converting electrical pulses into discrete mechanical movements. Applications of stepper motors are also mentioned, such as in printers, copy machines, and automatic typewriters.
Stepper motor as a gen
- 2. GROUP MEMBERS TAYYAB KHAN (13EE66) MUNEEB TAHIR (13EE64) AKTHAR ALI (13EE62)
- 3. Stepper motor as a Generator
- 4. WHAT IS A STEPPER MOTOR? Dc motors move in discrete steps Multiple coils Arranged in group called phases Motor rotates one step by energizing
- 5. WHEN TO USE A STEPPER MOTOR A stepper motor can be a good choice whenever controlled movement is required. They can be used to advantage in applications where you need to control rotation angle, speed and position.
- 6. STEPPER MOTOR CHARACTERISTICS • Stepper motors are constant power devices. • As motor speed increases, torque decreases. • Steppers exhibit more vibration than other motor types. • This vibration can become very bad at some speeds and can cause the motor to lose torque.
- 7. Construction Main Components • Stator • Rotor • Coils • Outside casing
- 8. Principle of stepper motor • A stepper motor is an electromechanical device. • It converts electrical pulses into discrete mechanical movements. • The shaft or spindle of a stepper motor rotates in discrete step increments when electrical command pulses are applied to it.
- 9. Principle of stepper motor The motors rotation has several direct relationships to these applied input pulses. The speed of the motor shafts rotation is directly related to the frequency of the input pulses. The length of rotation is directly related to the number of input pulses applied.
- 11. Stepper Motor as a Generator Connected a bridge rectifier to the motor It converts Ac to pulsating dc supply Capacitor connected to the bridge rectifier It converts pulsating dc to pure dc.
- 12. Advantages • Very reliable. • There are no contact brushes in the motor. • Excellent response to starting/stopping/reversing.
- 13. DISADVANTAGES • Resonances can occur if not properly controlled. • Not easy to operate at extremely high speeds.
- 14. APPLICATIONS Printer Copy Machines Automatic typewriters Laser Cutting