This groundbreaking textbook provides coverage for the second semester, core course in electronic circuits. Unlike most textbooks for this course, this one covers the mathematics of frequency-domain analysis, the traditional language of electrical engineering, in the context of real engineering applications and design. The author has structured the material to enable readers to develop into functioning engineers who can apply this theory to the understanding and design of a complex circuit that performs useful and desirable signal processing functions, through introduction of topics in Design-Oriented Analysis. Readers also will benefit from material that will help them build a foundation for their future studies in topics such as signal processing, control systems, RF circuits, power electronics, and communications.

Robert W. Erickson is a Distinguished Professor Emeritus at the University of Colorado–Boulder. Over his career, he has led innovative research in the power electronics field, setting new standards for efficiency and performance in electric vehicles, as well as in inverters for solar power, wind power, and battery energy storage systems. His work has been recognized through awards including the Institution for Electrical and Electronics Engineers (IEEE) William E. Newell Award, Life Fellow of the IEEE, the University of Colorado Boulder Inventor of the Year, and others. He was elected to the US National Academy of Engineering in 2026. His textbook Fundamentals of Power Electronics (third edition) has become a foundational resource for engineers and educators worldwide. His dedication to advancing digital education is evident in his leadership in founding and development of the Coursera-based MS-EE program, the first fully-online MS-EE degree program. He has served as ECEE Department Chair three times. He earned the B.S. (1978), M.S. (1980), and Ph.D. (1982) degrees in Electrical Engineering, from the California Institute of Technology, Pasadena, California.