ROHM Breadcrumb

new_motor_what2

Magnetic Force
<How Does a Motor Work? (1)>

Motor Rotation Using a Magnet/Magnetic Force

The basic operating principle of a motor is as follows.

Around a permanent magnet having a rotational axis:

① When the outer magnets rotate (referred to as a rotating magnetic field),② The N and S poles attract and repel each other, ③ Causing the magnet with the rotational axis (center) to turn.

Basic Operating Principle of a Motor  

Alternatively, supplying current to a conductor generates a magnetic field around, creating a magnetic force (Rotational magnetic field). This results in the same effect as rotating a magnet.

Here magnetic field is generated by passing a current through a conductive wire

If we wind a conductive wire into a coil the magnetic force is combined, generating a large magnetic flux along with North and South poles.

The magnetic force can be further strengthened by utilizing an iron core to increase magnetic flux density

Overview of Motors and Motor Driving

electronics_tips_menu

Loading