There are eight categories of AC motor controllers under 200 watts, each with qualities suitable for different applications. The main categories are induction motors, reversible motors, reaction synchronous motors, and torque motors. Induction motors are commonly used in devices like copying machines and computers due to features like high efficiency and starting torque. Reversible motors can change rotation direction under various loads and are used in medical equipment. Reaction synchronous motors have synchronized rotation without external speed control and are used in telecommunications devices. Torque motors have stable operation across a full speed range and are used in industrial applications like winding and fastening.

1. Types of AC Motor Controllers
The Ac motor controllers that are available under about 200 watts can
be available eight different categories. Each of these varieties are
available with various qualities that are suitable for them to be made
used with various applications. Consider each of these varieties and
choose them according to the application that you are considering.
There are various kinds of motors available in the market and choose
the one that can be much suitable for the requirements.
Induction Motors
Induction motors are the ones that are designed in a simple manner
as per the squirrel cage – rotor. It is one among the popularly used
power units. There are many special features associated with this
device that include the power factor with less vibration, noise, higher
efficiency, higher starting torque, continuous rating and so on. These
motors can be made used in the electronic copying machines,
automatic vending machines, machine tools, electronic computers,
optical equipment, pumps, graphics art and so on.
Reversable Motors

2. These are device that have similar kind of performance and
construction compared to the induction motors. These are motors that
can be suitable to be used with applications that need frequent off/on
and also in the reverse or forward control. Direction in which rotation
can occur can be switchable under the various kinds of load condition.
Overrun can be a minimal value which can be achieved by making
use of a brake with simpler friction. This is capable of maintaining
some grip even after the motor is stopped. These motors are
commonly used in the power units of the equipments that are used in
medial apparatus, automatic vending machines, cash dispensers,
different types of the remote control.
Reaction Synchronous Motors
These are kinds of motors that can be helpful in eliminating the DC
exciter. This motor is equipped with synchronized rotation in a
constant manner without considering the changes associated with
voltage, load factor etc. They are mainly used in the power sources of
teletype machines, floppy drives, electromagnetic oscillographs,
facsimile equipment, paper feeders, timers and so on.

3. Torque Motors
Torque motors are the other kinds of Ac motor controllers that
implement rotor made out of solid iron. The speed of the rotation can
be something that is inversely proportional to load and so the stable
operation can occur through the range of full speed. The various
special features that are associated with the motor are operation with
lower speed, dynamic range, locked rotor – torque etc. The changes
in applied voltage can easily control speed or torque. The input of
locked rotor can be something that is small or with a specific voltage.
It needs continuous rating that are available with operating voltages
that are normal. They can be made used along with the constant
tension winders, closing and opening of devices, winder brakes,
dividers, clutch devices, fasteners etc.
Speed Control – Motors
These are motors that are controlled by voltage with reversible design
along with rate generators that are built in. It can be used along with
the circuits that are available for speed control.
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