Generation of Sinusoidal Pulse Width Modulated Signal using Arduino Microcontroller

Motion control is required in large number of industrial and domestic applications like transportation systems, textile mills, fans, pumps etc. Systems employed for motion control are “Drives”. With the advancement of power electronics, microprocessors and digital electronics, typical electric drive systems nowadays are becoming more compact, efficient, cheaper and versatile. Controllers for Power Modulator is built in Control Unit which usually operates at much lower voltage and power levels. In addition to operating Power Modulator as desired, it may also generate commands for the protection of Power Modulator and Motor. Input command signal, which adjusts the operating point of the drive, forms an input to the Control Unit. In this project, “ARDUINO” is used as a control unit to generate PWM signals to control Power Modulator. A code for the SPWM signal is developed in Arduino software.