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About AC Motors

Alternating current (AC) motors are a broad category of motors that include single / multiphase, universal, servo, induction, synchronous, and gearmotor types. The magnetic field, generated by AC motors, is produced by an electromagnet powered by the same AC voltage as the motor coil. The coils that produce the magnetic field are traditionally called the "field coils" while the coils and the solid core that rotates is called the "armature.” There are many advantages in the use of ac motors aside from the wide availability of AC power. In general, AC motors cost less than DC motors. Some types of AC motors do not use brushes or commutators. This eliminates many problems of maintenance and wear, and also eliminates the problem of dangerous sparking.  They are also particularly well suited for constant-speed applications. This is because its speed is determined by the frequency of the AC voltage applied to the motor terminals.

There are two distinct types of AC motors, synchronous and induction.  A synchronous motor consists of a series of three windings in the stator section with a simple rotating area. A current is passed through the coil, generating torque on the coil. Since the current is alternating, the motor will run smoothly only at the frequency of the sine wave. This allows for constant, unvarying speed from no load to full load with no slip.

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Products & Services Related to AC Motors

AC Servomotors
AC servomotors are responsive, high-acceleration motors typically constructed as permanent magnet synchronous motors.
DC Motors
DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors.
DC Servomotors
DC servomotors are generally small and powerful for their size, and easy to control. Common types of DC servomotors include brushless or gear motors.
Gearmotors
Gearmotors consist of an AC or DC motor with an integral gearbox or gear head that steps delivered speed up or down.
Stepper Motors
Stepper motors use a magnetic field to move a rotor in small angular steps or fractions of steps. They provide precise positioning and ease of use, especially in low acceleration or static load applications.

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Engineering Web: AC Motors

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Part Numbers for AC Motors

Part # Distributor Manufacturer Product Category Description
AC223 Amazon Standard Motor Products Automotive Parts and Accessories Standard Motor Products Idle Air Control Valve
AC280 Amazon Standard Motor Products Automotive Parts and Accessories Standard Motor Products Idle Air Control Valve
AC272 Amazon Standard Motor Products Automotive Parts and Accessories Standard Motor Products Idle Air Control Valve
AC185 Amazon Standard Motor Products Automotive Parts and Accessories Standard Motor Products Idle Air Control Valve
AC203 Amazon Standard Motor Products Automotive Parts and Accessories Standard Motor Products Idle Air Control Valve

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