The industry has historically focused on controlling basic power converters using either current-mode and voltage-mode control. Many analysis techniques have been proposed, and Dr. Ridley will provide a short review of these methods. The varying solutions have been inwardly focused on the components of the power supply. Trying to control components outside the confines of the basic converter cell is not usually considered. In this seminar, we will show how PWM modulation can be applied to the control of filters at the input and output of the converter power stage. Unique new control structures and magnetics small-signal models can be applied to produce a much more controllable power system without introducing lossy elements in the filter components. The power and utility of Bode plots for the design of complex high-order systems is presented in detail. This allows engineers to envisage solutions to difficult problems without difficult mathematical analyses.