How does an AC induction motor work? Here’s a little animation to summarize things and hopefully make it all clear: Two pairs of electromagnet coils, shown here in red and blue, are energized in turn by an AC supply (notRead more
Category: Electric Motor Technology
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How does an AC motor work?
Unlike toys and flashlights, most homes, offices, factories, and other buildings aren’t powered by little batteries: they’re not supplied with DC current, but with alternating current (AC), which reverses its direction about 50 times per second (with a frequency ofRead more
How does an ordinary DC motor work?
How does an ordinary DC motor work? The simple motors you see explained in science books are based on a piece of wire bent into a rectangular loop, which is suspended between the poles of a magnet. (Physicists would callRead more
Stepper Motors And Their Impact on Acceleration Ramps
Stepper Motors And Their Impact on Acceleration Ramps This article explains stand test methodology for generating force versus velocity curves and the benefits of adding acceleration and deceleration ramps. One of the first parameters that is considered when choosing aRead more
What are the parts within an Electric Motor
How do they work? If you study the basics of electricity, you know that electricity and magnetism are, for the purposes of physics, united into one force called the electromagnetic force. An electric motor is a device that utilizes thisRead more
All Electric Motors are Stepping Motors
In 1938, production began of a two phase synchronous induction motor which, at 60 Hz, ran at 75 RPM. The low speed resulted from there being a different number of rotor-to-stator poles or teeth which made the motor a goodRead more
DC Brush Commutated vs Brushless Motors
DC Brush Commutated vs Brushless Motors Each of these DC motor types convert electrical energy into mechanical energy through the interaction of magnetic fields. This discussion will be based on the latest technology whereby one of those fields is producedRead more
What are BLDC motors?
What are BLDC motors? They are made with permanent magnets driven by the windings in the stator. The principle is basically “rotate the magnet”. It is equipped with absolute position sensor, required for phase commutation. They do not employ brushesRead more