The Fundamentals of Power Electronics, second edition, is a current and authoritative textbook as well as a reference work on power electronics. This new edition retains the original goal and philosophy of focusing on the fundamental principles, models, and technical requirements necessary for designing practical power electronic systems, while also adding a wealth of new materials. Enhanced features of this new edition include a new chapter on input filters, demonstrating how to design single and multi-section filters; comprehensive revisions of the material on average switching modeling, low-harmonic rectifiers, and the chapter on AC modeling of the discontinuous conduction mode; new material on soft switching, active clamp snubbers, zero-voltage-transition full-bridge converters, and auxiliary resonance-switching poles. Additionally, there are new sections on the design of multi-winding magnets and resonant inverters.