DC Motor PWM Speed Controller

A DC motor PWM speed controller is an electronic module used to adjust the speed of a DC motor by controlling the power supplied to it through Pulse Width Modulation (PWM). It typically uses a control knob to change the PWM duty cycle, allowing the motor to run faster or slower without simply reducing the supply voltage. It is commonly used in robotic cars, conveyor systems, small machines, fans, and STEAM robotics projects. The controller must be matched to the motor’s voltage and current requirements.