The impulse technology plays a significant role today in the entire field of electrical engineering, particularly in data technology and automation technology. Knowledge of the fundamentals of impulse processes and the ability to size impulse-processing circuits are essential prerequisites for anyone who wants to be successful in this field. The present book "Fundamentals of Impulse Technology," as part of the textbook series "Guide to Electrical Engineering," aims to convey the necessary foundations. It is intended for both students of electrical engineering and engineers already working in practice who are dealing with impulse technology tasks. No special mathematical knowledge is required to engage with the material. However, where specific mathematical methods are needed, an introduction to the calculation methods will be provided.