Abstract
<jats:p>The textbook contains theoretical material that expands the sections "Non-sinusoidal current circuits" and "Multiphase circuits" in the theory of electrical circuits. Electrical pulse circuits and devices are considered. New functions and solutions have been proposed for the implementation of pulsed electrical circuits, which include the interval allocation function and complementary functions. The requirements necessary for the implementation of a multiphase pulse system are formulated. Pulse devices based on a meander are described. Meets the requirements of the latest generation of federal state educational standards for higher education. It is intended for students studying the disciplines "Theoretical foundations of electrical Engineering", "Theory of electrical circuits", "Electrical Engineering and Electronics". The presented material can also be useful for graduate students and adjuncts of military academies.</jats:p>