In this video, two main topics will be covered: Pulse width modulation (PWM) frequency and motor interfaces. In the first section, we will discuss what a PWM frequency is, the definition of duty cycle and the effect it has on the operation of a brushed DC motor. Additionally, we will discuss how to choose an optimal switching frequency.

In the the second part of the video, we will discuss the different brushed motor interfaces and their advantages/disadvantages in any particular system as well as examples of logic tables.