Stepper motor

A stepper motor is a kind of electric motor where an internal rotor containing permanent magnets is controlled by a set of external magnets that are switched electronically. A stepper motor is a cross between a DC electric motor and a solenoid. Simple stepper motors "cog[?]" to a limited number of positions, but proportionally controlled stepper motors can rotate extremely smoothly. Computer controlled stepper motors are one of the most versatile forms of positioning systems[?], particularly when digitally controlled as part of a servo system[?].

External links

• http://www.zelazko.host.sk/stepper