The first major reference for modern thyristor design to explain the design of power semiconductor thyristors. Introduces the power thyristor to the beginner and explains the detailed device physics of operation to form a foundation for the main part of the book, which details the actual designing of thyristors. All types of thyristors are included and data is presented in a manner designed to be accessible to both the specialist device designer and the power electronics circuit engineer. Expanding on the discussion of thyristor design, it considers the special requirements of advanced types, including: turn-ON, ON-state, turn-OFF, OFF-state. Also includes detailed design considerations for the basic thyristor and special types such as the ASCR, GATT, GTO, SITh, LASCR and others. Extensive references.