what is a stepper motor?

Question

is it the motor that provides maximum torque?i need a motor with the capacity to dekiver maximum torque.suggest me pplease.
websites will help

Answer 1

A stepper motor (or step motor) is a brushless, synchronous electric motor that can divide a full rotation into a large number of steps. The motor's position can be controlled precisely without any feedback mechanism, as long as the motor is carefully sized to the application.



http://www.omega.com/pptst/omht_series.html



it would help if you defined the application in mind a bit better, I can only assume you have some kind of automotive application in mind, since you put your question in the cars section

Answer 2

A stepper motor (also referred to as step or stepping motor) is an electromechanical device achieving mechanical movements through conversion of electrical pulses. Stepper motors are driven by digital pulses rather than by a continuous applied voltage. Unlike conventional electric motors which rotate continuously, stepper motors rotate or step in fixed angular increments. A stepper motor is most commonly used for position control. With a stepper motor/driver/controller system design, it is assumed the stepper motor will follow digital instructions. One important aspect of stepper motors is the lack of feedback to maintain control of position, which classifies stepper motors as open-loop systems.

Answer 3

A stepper motor (or step motor) is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application.



Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.

DC brushed motors rotate continuously when DC voltage is applied to their terminals. The stepper motor is known by its property to convert a train of input pulses (typically square wave pulses) into a precisely defined increment in the shaft position. Each pulse moves the shaft through a fixed angle.



Stepper motors effectively have multiple "toothed" electromagnets arranged around a central gear-shaped piece of iron. The electromagnets are energized by an external driver circuit or a microcontroller. To make the motor shaft turn, first, one electromagnet is given power, which magnetically attracts the gear's teeth. When the gear's teeth are aligned to the first electromagnet, they are slightly offset from the next electromagnet. This means that when the next electromagnet is turned on and the first is turned off, the gear rotates slightly to align with the next one. From there the process is repeated. Each of those rotations is called a "step", with an integer number of steps making a full rotation. In that way, the motor can be turned by a precise angle.

Answer 4

This is a term used to identify an electrical motor used to control a device. Most common use is in a IAC= idle air control. The control motor is operated in steps and is refered to as counts in the computer. If you were looking at live data on a scanner it would show the IAC at a specific count number as in 56. A Technician would monitor this number to determine if a coaking condition exists if higher than normal, it would mean that the IAC is compensating for a dirty throttle body caused by coaking. Coaking= sediment build up at the throttle plate reducing air intake to maintain idle speed. Hope this helps