This is a very tricky topic. Any simple article is never going to be enough for a novice to really be able to design a class-D amplifier. However in this article I attempt to outline the basic requirements and considerations for designing a class-D amplifier. It isn’t complete, but it’s a good start!
Also, in the article I attempt to draw a parallel between some of the familiar elements of a linear amplifier and the perhaps not-so-familiar elements of a class-D amplifier. The comparison isn’t perfect, but I hope it will serve as a springboard to those not yet familiar with the intricacies of class-D amplifier design.