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Power electronics form the backbone of modern energy systems, from smartphone chargers to electric vehicles. Understanding how DC-to-DC converters regulate and transform voltage is essential for any aspiring electrical engineer. This text-based course guides you through the fundamental principles of power conversion, equipping you with the analytical skills needed for academic exams and practical circuit design. You will transition from basic circuit concepts to analyzing complex converter topologies with confidence. What you'll learn: 1. Understand the foundational principles of switch-mode power supply technology. 2. Analyze buck, boost, and buck-boost converter topologies under steady-state conditions. 3. Derive key design equations for inductor, capacitor, and semiconductor selection. 4. Practice solving typical analytical problems found in competitive engineering exams. 5. Explore modern trends in power electronics, including the basics of wide bandgap devices like GaN and SiC. The course starts with essential terminology and the physics of switching, then progresses step-by-step through standard converter topologies, waveform analysis, and design calculations. It is designed for engineering students, exam aspirants, and beginners in power electronics with a basic background in circuit theory. Start reading today to master the core mechanics of modern power conversion.