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Direct current (DC) motors have variable characteristics and are
used extensively in variable-speed drives. DC motor can provide a
high starting torque and it is also possible to obtain speed
control over wide range. Why do we need a seed motor controller?
For example, if we have a DC motor in a robot, if we just apply a
constant power to each motor on a robot, then the poor robot will
never be able to maintain a steady speed. It will go slower over
carpet, faster over smooth flooring, slower up hill, faster down
hill, etc. So, it is important to make a controller to control the
speed of DC motor in desired speed. DC motor plays a significant
role in modern industrial. These are several types of applications
where the load on the DC motor varies over a speed range. These
applications may demand high-speed control accuracy and good
dynamic responses. In home applications, washers, dryers and
compressors are good example. In automotive, fuel pump control,
electronic steering control, engine control and electric vehicle
control are good examples of these. In aerospace, there are a
number of applications, like centrifuges, pumps, robotic arm
controls, gyroscope controls and so on.
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