AC servomotors are responsive, high-acceleration motors typically constructed as permanent magnet synchronous motors

AC motor drives interface controllers to AC motors. They match the control signals (voltage and power levels) as well as the signal type (analog or digital). They also provide power conversion, amplification, and the sequencing of waveform signals

Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors. They include a power supply, amplifier, user interface, and position control circuitry.

Gearmotors consist of an AC or DC motor with an integral gearbox or gear head that steps delivered speed up or down

Motor speed controllers are electronic devices that control motor speed. They carry specifications for drive type, product classification, electrical ratings, and operating parameters.

Servo drives provide electrical drive outputs to servo motors in closed-loop motion control systems where position feedback and corrective signals optimize position and speed accuracy.

DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors

DC motor drives act as the interface and power supply between a motion controller and a DC motor.

Motion controllers range from simple linear controllers to complex, user-programmable modules that act as controllers within complex integrated multi-axis motion systems.

Motion control systems contain matched components such as controllers, motor drives, motors, encoders, user interfaces and software. Components in these systems are optimally matched by the manufacturer.

AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.  

DC servomotors are generally small and powerful for their size, and easy to control. Common types of DC servomotors include brushless or gear motors

AC-DC adapters accept AC input voltage directly from a wall outlet, and output DC voltage

DC to AC inverters are used for converting direct current (DC) into alternating current (AC). They are also known as DC to AC converters

Power supplies are devices that produce AC or DC power.  This grouping includes current sources, DC power supplies, AC-DC adapters, DC-DC converters, AC power sources, and DC-AC inverters