An AC motor driven by an alternating current (AC) is an electric motor. AC motor consists generally of two main parts, the coil is supplied with an external stationary alternating current to produce a rotating magnetic field of the stator, and rotor inside a associated with a second rotating magnetic field of the output shaft . Rotor magnetic field, permanent magnets, reluctance can be prepared by the saliency, or DC or AC power to the windings.
Less commonly, linear motors AC motors rotating work on similar principles but produces linear motion of rotation, arranged in a straight line configuration of the stationary and moving parts.
Main types are DC motors and actuators AC, former President increasingly displaced by the latter. AC electric motors are either asynchronous or synchronous. Once started, synchronous motor requires synchronization with a synchronous speed of the magnetic field to move all circumstances regular torque.
A DC motor is any of a class of electric machines that directly converts mechanical energy into direct current electricity. The most common types are dependent on the forces produced by the magnetic fields. Almost all types of DC motors, some internal mechanisms, electromechanical or electronic, or, to change the direction of flow of the brake motor. The production of most types of rotary motion, produces a linear motor to power and motion in a straight line directly.
They were first used directly after the current lighting DC motors can be powered from a power distribution system, extensive. A DC motor speed while changing a variable power supply voltage or current to the field windings when used, can be controlled over a wide range. Small DC motors, tools, toys, and used equipment. Universal motor direct current can work, but used for portable power tools and equipment is a lightweight motor. Drives for large DC motors electric vehicles, elevators and hoists, rolling mills or steel are used in propulsion. Of power electronics has made possible alternative to DC motors with AC motors in many applications.