With the use of an inverter for motor, it becomes possible to freely change the rotation speed and torque of motor.

 The inverter can be used for the energy-saving operation of radiator fans and driving a vehicle in which a large change in torque and rotation speed is required.

 By controlling a motor with an inverter, the motor can be converted to a generator to produce electricity.

 It can be said that a motor, which was supposed to rotate at a constant speed, acquired intelligence by its combined use with an inverter.

 The power devices used in the inverter are controlled by a high-performance microcomputer or DSP (Digital Signal Processor).