Ac motor vs Dc motor

Electric motors can be divided into two types.

1.Alternating current (Ac) electric motor.

2.Direct current (Dc) electric motor.

A dc electric motor will not run when supplied with ac current,nor will an ac motor run with dc current.Ac electric motor are further subdivied into single phase and three phase motors.Single phase ac electrical supply is what is typically supplied in a home.Three phase electrical power is commonly only available in a factory setting.

Dc electric motors are also split into types.There include brush motors brushless motors and stepper motors of these types brush electric motors are by for the most common.They are easy to build and very cost effective.Their major draw back is that they use corbon brushes to transfer electrical current to the rotating part,and these brushes wear over time and eventually result in the failure of the electric motpr.The dc brushless motor eliminates the brushes but is more costly and requires much more complicated drive electronics to operate.