This book provides readers with an in-depth discussion of circuit simulation, combining basic electrical engineering circuit theory with Python programming. It fills an information gap by describing the development of Python Power Electronics, an open-source software for simulating circuits, and demonstrating its use in a sample circuit. Unlike typical books on circuit theory that describe how circuits can be solved mathematically, followed by examples of simulating circuits using specific, commercial software, this book has a different approach and focus. The author begins by describing every aspect of the open-source software, in the context of non-linear power electronic circuits, as a foundation for aspiring or practicing engineers to embark on further development of open source software for different purposes.  By demonstrating explicitly the operation of the software through algorithms, this book brings together the fields of electrical engineering and software technology.

Shivkumar Venkatraman Iyer is an independent researcher, based in Toronto, Canada, with expertise in power electronics.

Introduction.- Introduction to Python.- User Interface.- Interface for User Control Functions.- Case Study - Shunt VAR Compensator.- Nodes, Branches and Loops.- Circuit analysis - Loop analysis.- Circuit analysis - Nodal analysis.- Conclusions.