This article discusses solid state switching methods such as solid state relays, burst fired and phase fired SCRs. It examines the benefits of solid state switching over contactors and discusses the most appropriate type of control for various applications including transformer coupled loads & silicon carbide heating elements.
Provides information on the correct implementation of Silicon Carbide heaters and the sizing of SCRs used for their control.
A commonly misunderstood subject! Covers fusing for power semiconductors with several worked examples.