Home Question Answer How does pulse width modulation (PWM) work? How does pulse width modulation (PWM) work? Pulse width modulation (PWM) works by changing the amount of electricity that flows to the motor. By changing the flow of electricity, we can make the motor spin faster or slower. Related Questions How does a motor works? What is the unit of torque? What is the formula for converting electricity to mechanical energy? What is RPM in relation to mobile robots? How can we control the speed of the motor using PWM? What is the voltage for a DC motor? What is the relationship between power and velocity? What are some applications of mobile robots? Load More