This book is about designing controllers using simulation and mathematical software packages. It deals with direct current (DC)-to-DC controllers, and develops foundational circuit equations and ways to design such controllers. It provides step-by-step procedures on a particular simulation, as well as for a particular mathematical software package.

The first chapter introduces DC-DC converters as a circuit to convert a DC to another DC with difference in voltages. It provides real-life applications of such converters, including solar panels, laptops, mobiles, and so on. The chapter also gives a block diagram for such converters.

The second chapter discusses the major reason behind having a controller for a DC-to-DC converter: the changes in voltages on any of the incoming or outgoing loads. In order to explain further, the chapter provides a way to study the effects of these voltage changes on a demonstrative DC-to-DC converter circuit. The circuit is simulated using simulation software. The chapter provides a step-by-step procedure to study over the simulation.

The third chapter develops fundamental equations governing the design of the controllers. It begins by introducing the state space averaging (SSA) technique. The technique is based on weighted averages. The chapter develops various circuit equations based on the technique. It provides code, which can be run on MATLAB (a mathematics software) to obtain transformation equations for a given DC-to-DC converter circuit. Using the equations, analysis can be done on the effect of changes in incoming or outgoing loads. The chapter refers to a software tool to automatically extract the related models. In the end, it describes a method to obtain an algebraic transfer function. The function works in discontinuous current mode, where SSA does not work well.

Chapter 4 describes design methods following the model extractions from methods in chapter 3. The simulation package and MATLAB are used. A manual method and a method using the system identification toolbox in MATLAB are described.

The portable device industry has expanded in recent decades. Laptops, mobiles, and many other devices require low voltage for their circuits to work. DC-to-DC converters have become very important in such devices. On the other hand, voltage boosters are needed to convert power from solar panels to high-voltage electricity. DC-to-DC converters are needed for voltage boosters. The book provides a good understanding of the related design problems. Engineers can use the equations in chapter 3 to design controllers for DC-to-DC converters. The book also demonstrates how to use simulation packages and mathematical software packages for design.

Readers are expected to know power electronics, differential calculus, simulations, and typical mathematical software coding. Undergraduate students can use the book in a course related to controller design.