The DC Motor Speed Control System (PWM, SCR) Trainer Board controls the speed of a DC motor by adjusting the amount of voltage or current supplied to the motor. The system uses a Pulse Width Modulation (PWM) or Silicon Controlled Rectifier (SCR) circuit to regulate the power supplied. Finally, a practical control implementation on a laboratory-scale electric drive (motor and inverter) is introduced, targeting the B-Box RCP or B-Board PRO with the ACG SDK on Simulink. Please note that imperix offers a ready-to-use motor drive system to develop and test motor control techniques. Our speed control motor packages include the motor, the driver (controller), and a potentiometer which allows for easy speed control adjustment.