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What is a motor?

What is a Motor?

It is estimated that nearly half of the world's energy consumption is consumed by motors. Therefore, increasing motor efficiency is expected to have a significant impact on the global energy crisis.
And although ROHM does not supply the main motor body, we offer motor driver ICs and other components that make it easy to drive motors with high efficiency.
Here we will explain the operating principle of motors, beginning with the basics.

Motor Types

A motor can be thought of as an electrical machine that converts electrical energy to mechanical energy.
Motors that operate through rotary motion by receiving power when current flows within a magnetic field are common. However, a wide range of motor types exist, including ones that operate through linear motion.

Motors are broadly classified by the type of drive power used (source): AC or DC.
They can also be further divided by the rotational principle, as shown in the chart below.

DC (Direct Current) and AC (Alternating Current) Motors
Motors/Actuator DriversProduct Group Page